Search the Community

When a metal is filled with a Feruchemical attribute, the power that the metal then gives when burned Allomantically is a copy of the Feruchemical attribute rather than the Allomantic power that it would normally give. Would the same apply to Hemalurgy? In other words, if you were to burn a Hemalurgic spike that only had a small charge in it, would the investiture granted by the metal itself copy and be added to the Hemalurgic charge that was already in the spike, thus making the power or ability spliced into your spiritweb actually becoming much stronger than what was in the spike originally?

I’ve taken a bit of a break from the cosmere and I’m a little rusty. I feel like I’ve missed 10,000 WOB’s and I am trying to refresh myself and catch up. It’s long been previously theorised Hoid has access to Feruchemy and it was assumed he was a Feruchemist but it was later revealed he simply has unkeyed metal minds.. That’s how he uses ferchemical powers Hoid has the full powers of a powerful Allomancer after ingesting the L bead and we now all know he has un-keyed Metalminds but I’m a little foggy on how they operate. Is he capable of refilling his un-keyed feruchemy metal minds himself and being able to burn/compound for twinborn powers?

One of the common conceptions I've seen on compounding nicrosil is that you can do this in order to increase the power of one your abilities temporarily. Compound, for example, your ability to use steel Allomancy, tap it at a quick rate, and your ability to use that specific power will be increased. I'm not sure this is how it works anymore though. From this quote we see that a Nicrosilmind is similar a a Coppermind in some regards, and I think that one of the ways that it may be is that you store not only your ability to use a type of Invested power with it, but also the relative strength of that power too. For example, if a Mistborn such as Kelsier were to store his ability to use Allomantic steel, it would be more powerful than if Waxillium were to store his ability to use Allomantic steel. This may not be the case, of course, but I think that it would be a reasonable line of thinking based on the WoB and that fact that it would help keep nicrosil from becoming too overpowered.

The Bands of Mourning allow for this to work, but they’re a special case. From a meta viewpoint, it feels far too powerful an ability to just hand out. Even using Hemalurgy to gain access to compounding require sacrifice, but if you could gain that kind of power without the cost? Not only that, but if people can make these so that they have compounding available, then why would anyone make an Unsealed Metalmind that doesn’t allow compounding, since those abilities would be so superior to non-compounding abilities? So, would Unsealed Metalminds made from multiple people, the way they are typically made, just not allow this to work? Or are we just going to see a lot more compounding in the future?

Anyone know what happens if you are burning Duralumin while also attempting to burn a stored Feruchemical attribute? I've been wondering about this since we see Connection Medallions and I'm wondering if they're filling them in a special way, or if this isn't as complicated as I think it is. In order to compound you first store a Feruchemical attribute in the Metalmind, slightly burn the Metalmind, which allows you to access the Feruchemical storage as an Allomantic ability, and then burn the Feruchemical storage granting a huge amount of that storage in return. By necessity to make the compounding work, you have to actively, if minutely, burn the Metalmind. Duralumin removes all control over how little you burn, instead expending all actively burning metals in a burst of power beyond what most Allomancers can do even when flaring their metals. The entire stock, which presumably includes the Metalmind. Maybe it isn't a problem, since A-Duralumin itself I think burns at a normal rate, but does A-Duralumin's effect apply to F-Duralumin? Do you get huge bursts of Connection and then you immediately extinguish A-Duralumin and then store or lose it? That probably wouldn't be a problem, except you have no finesse when you need to recharge (and who knows what happens when you repeatedly massively Connect yourself to... whatever). I know that Leechers can't affect Feruchemical stores normally, but I'm wondering if the "hack" that is Compounding opens Feruchemical stores to influence from Leechers, or if that would only would work when actively Compounding. At any rate, I don't think it would be viable to Compound Duralumin and another metal at the same time.

Anyone know what happens if you are burning Duralumin while also attempting to burn a stored Feruchemical attribute? I've been wondering about this since we see Connection Medallions and I'm wondering if they're filling them in a special way, or if this isn't as complicated as I think it is. In order to compound you first store a Feruchemical attribute in the Metalmind, slightly burn the Metalmind, which allows you to access the Feruchemical storage as an Allomantic ability, and then burn the Feruchemical storage granting a huge amount of that storage in return. By necessity to make the compounding work, you have to actively, if minutely, burn the Metalmind. Duralumin removes all control over how little you burn, instead expending all actively burning metals in a burst of power beyond what most Allomancers can do even when flaring their metals. The entire stock, which presumably includes the Metalmind. Maybe it isn't a problem, since A-Duralumin itself I think burns at a normal rate, but does A-Duralumin's effect apply to F-Duralumin? Do you get huge bursts of Connection and then you immediately extinguish A-Duralumin and then store or lose it? That probably wouldn't be a problem, except you have no finesse when you need to recharge (and who knows what happens when you repeatedly massively Connect yourself to... whatever). I know that Leechers can't affect Feruchemical stores normally, but I'm wondering if the "hack" that is Compounding opens Feruchemical stores to influence from Leechers, or it would open them to it, but only when actively Compounding. At any rate, I don't think it would be viable to Compound Duralumin and another metal at the same time. A different look at this, could a Nicroburst Misting have slapped Miles, waited a second, and then shot him? Would that have burned all of his Metalminds, Health storage and all since Miles always had the compounding running and by extension was very slowly burning his Gold?

It’s been mentioned by Brandon Sanderson in his mistborn annotations that metals piercing your body can be allomantically burned. Could someone burn away a sword stabbed through them? Could they compound a metalmind too large to swallow by having a small part of it pierce their body?

if you were to take A LOT of metal of a certain type, possibly via soulcasting, then were to fuse the metal into a huge interconnection of metalminds, could you then use compounding to fill it up, then tap it monumental amounts of raw power? This would be impractical for travel, and for battle, but you could use this for certain times that you could benefit from in the long term, such as a massive chromium mind, allowing you to see directly into the spiritual realm and see the future. Or a Zinc mind, making you into something like Tarivangian, but whenever you want, only with a movement limitation. Or perhaps duralumin, to do something bond-smith-like. Or, maybe a giant, massive boost of health to recover from serious soul damage. Any thoughts on this?

In the Hero of Ages and in a few other Mistborn books, we see that hemalurgic creations, namely Marsh, were able to maintain a sliver of their own autonomy, even while being controlled by Ruin or another Shard/allomancer. Electrum is capable of storing determination, and compounding it would magnify that determination. So, if you were burning an electrum metalmind and Harmony tried to take over your mind, would you be able to resist him through virtue of nothing but pure willpower?

Why wouldn't the Set have its high up members be gold compounders? Is there something about hemelergy that interferes with the strength of compounding? Are they trying to limit the strength of their members? Why wouldn't Wax's uncle have gone double gold and made himself near invincible? I get that they would have to find blood makers and gold mistings (both rare), but i feel like if you were going to go through the process of this, you would want to make it count. On that same vain if thought, if not gold, wouldn't they want to compound a different one? Steel compounding sounds quite powerful in that you both get to become a coinshot and essentially become The Flash. I guess my question boils down to this; is there something that prohibits compounding metals through hemelergy (prohibiting an OP army), is it that they don't have the allomancers/ferucamists handy to pick and choose powers, or is the Set/Trell simply trying to limit their powers? I don't know if this is RAFO or if we have the info on this. Any thoughts?

Just what it says on the tin, there. I play brass instruments, even in cold Canadian Remembrance Day (Veterans day for you Americans) weather. So I thought that if I was a Firesoul or a compounder it'd be very convenient to keep toasty warm. Brass instruments get cold FAST when it's chilly outside, and that can numb the fingers well. I wondered if Brandon had said anywhere just how hot a Brass ferring could get while tapping their metalminds. If, like an Iron Ferring becoming 20 times heavier for a time without crushing themselves, they can give themselves a big increase in personal temperature without burning themselves. Brass has a melting point of around 900-940 degrees Celsius. The human body is normally in the 36 degree range. If a Ferring or compounder can make themselves 30 times hotter for long enough their metalminds would begun to melt. Long before that point, though, their metalminds would have to become hot enough to burn at least anyone other than the ferring themselves since Brass is a good thermally conductive metal. I guess it's also all dependant on how much your temperature changes when you fill or tap the metalmind. Just two degrees Celsius is a BIG change in your body temperature without Feruchemy being involved. Any info you've got will be useful! (Note, I haven't read the bands of mourning yet, but I do understand that brass metalminds play a role in the book. Technical knowledge like how warm people get is okay to fill me in on!)

The purpose of this topic is to project the most extreme abilities of any investiture in the cosmere based on the currently referenceable material. Ideas which can be logically defended are welcome regardless how outrageous. As promised a coinshot laser would likely be produced by a Steel twinborn compounder after the discovery of heavy metals and at least some experiments in nuclear science on Scadrial. This individual would likely be able to detonate nuclear explosions using metal pushing and heavy metals and would need the speed of a steelrunner to avoid serious injury. Using metal pushing they could likely push small particles of radioacive metal forming a type of laser or electromagnetic particle beam at high velocity. Due to a strong spiritual affinity with steel because of being a steel twin it might be possible that they could store steel pushes and speed in a metal mind for use feruchemically yielding steel pushes and speed to exceed duralumin assisted allomancy. The nuclear particle beam could be used on its own or in concert with radioactive spheres in battle situations to inflict massive damage. The nuclear laser could be used to split atoms in a plutonium, uranium or like metal to create atomic or nuclear explosions. Due to the ability to create steel bubbles they could also probably shield themselves from the radiation of nuclear material on or near them. With fine enough control they could also perform nuclear laser surgery. They could be outfitted in steel biomechanical armor that could act as a metal mind for both their allomantic and feruchemical abilities. What do you think of this idea or what extreme use of investiture do you envision?

Hi everyone. I tried searching here on the Shard if this has been discussed before and I didn't find anything... Anyway, there's a WoB that states that compounded duralumin can "break into" a kandra (and presumably a koloss or even an inquisitor), similar to how a powerful enough soother or rioter could. Are there any theories on how that works? I guess the compounder would tap enough connection that they and the kandra "become one" (maybe in a similar way some theorize swearing the Fifth Ideal would make Radiant and their spren one?). But maybe there's some better explanation for it, which is why I'd like to here your thoughts. Another question I have, thanks to a post in the F-Duralumin Club, is whether a connector would be able to hear the rhythms on Roshar if they tapped connection. Do you think this would be possible? The WoB about a duralumin compounder "breaking into" a kandra is this one: The post in the F-Duralumin Club is this: https://www.17thshard.com/forum/topic/94492-feruchemical-duralumin-club/?do=findComment&comment=1214321

Hello there! I am HoidWasTaken, here to explain compounding to those among you who may not understand it. If a friend is having trouble wrapping their head around it, you can send them here. In this little guide, I am assuming you know the basics of allomancy and feruchemy, but I will reiterate a couple things about each that are important to the subject. Feruchemy is one of the metallic arts, and is the neutral art meaning it is of both Preservation and Ruin. It is also the neutral art because it has a net-neutral outcome, which I will explain. Whatever you put into a feruchemical metalmind is exactly what you get out of it. The power is not coming from any mythical source, it is all coming directly from your own body. If I were to be at 1/2 my normal weight for one hour, I could be at 1.5x my weight for one hour. Allomancy is another of the metallic arts, and it is the end-positive art, being solely of preservation. In allomancy, all the power you are being granted does not come from yourself, but from the shard preservation. That is why it is end-positive is because it is expending that energy over your own. If you burn pewter, the strength you gain does not come from your own body, but from an outside source. Now that we have that down, I am going to explain compounding. Compounding is the act of using the power of Allomancy to fuel your Feruchemy, to put it simply. So, one important thing about Feruchemy before I move on is that without doing some very specific things which I won't cover in this guide, no one but else can use a metalmind that someone sets up. If I store even 1 second of being at half my weight into an iron metalmind, no one else can use that metalmind, because it is locked to my identity. So, lets assume that I am a full feruchemist and a full allomancer. I have an iron metalmind that I have stored 0.5 my weight into for 3 hours. Now, because I have stored an attribute in this metalmind, it means that it is now identifying as a feruchemical storage for weight. Now, if I were to swallow and burn that bit of iron, it doesn't work like allomantic iron because, like I said, it now identifies as a feruchemical storage for weight. This means that instead of using the power of allomancy to give me the power of iron, it uses the power of allomancy to amplify the weight I stored in there. Before, you only got as much as you put in for feruchemy. Now, the attribute I stored is being multiplied by the power of allomancy. So instead of having 1.5x my weight for 3 hours, I may have that for 30 hours now. Does that make sense? I sure hope so. Now, I can take a different piece of iron and store all the weight I just created. Now I have an iron metalmind with 0.5 my weight stored in it for 30 hours. If I were to swallow that metalmind and burn it, then I could get 300 hours of 1.5x my weight. The process can go on forever. I hope this illustrates why being a full feruchemist and a full allomancer is so powerful that the Lord Ruler had breeding programs for the Terrismen to make sure it never happened.

When somebody is compounding, They Allomanticly Burn their metal mind right? How does that work? Doesn't the metal have to be in your stomach to burn it?

Having re-read both Mistborn and White Sand in close proximity, I’ve developed a theory. Although this theory mainly relates to the use of Bendalloy Compounding and Sand Mastery conjunctively, it could be expanded upon to include other topics of how the two most prominent Scadrian magic systems interact with Sand Mastery. Anyways, introduction out of the way, I’ll try to explain how to hack Sand Mastery via Compounding. First of all, I’ll try to explain Sand Mastery. At least, from how I understand it from reading the comics and researching on the Coppermind. Sand Mastery is an end negative result magic, maybe. To use this form of Investiture it requires both water from the body, and the presence of Kinetic Investiture. After using the sand however, the Sand Master becomes dehydrated, and the Kinetic Investiture stored in the sand is lost, meaning not only can the Sand Master risk death, but the sand itself has less Investiture than before. Next, I’ll explain Bendalloy. I’m sure we are all well aware of how it works Allomantically. A Bendalloy Misting creates a bubble of sped up time, quite simple. Though, Feruchemical Bendalloy is interesting in my opinion. A Ferring would be able to store both calories, and hydration, albeit in separate metal minds. So, if one compounded Bendalloy they would no longer need to eat or drink, as their metal minds would be able to sustain their need for calories and water. Now, we reach the cusp of my theory of how to achieve unlimited Sand Mastery. As we’ve already established, to use Sand Mastery, one must be hydrated. Though, if a Sand Master has the ability to Compound Hydration in a Bendalloy Metalmind, they would theoretically be able to fuel their Sand Mastery directly from that Metal Mind. This could lead to some interesting effects. For instance, we know a Feruchemist can draw out their stored attributes at different rates, so if a Bendalloy Twinborn Sand Master drew upon their hydration-mind, how would that affect their Sand Mastery, if it would affect it at all? Would they be able to control more ribbons? Or would it simply just affect the strength of their pre-existing ones? The real main benefit of this, however, is that a Sand Master who is also a Bendalloy Compounder would be able to endlessly Sand Master, as long as there is Invested Sand for them to manipulate. This leads me to the next part of my theory. As stated before, the Sand on the Dayside of Taldain is charged via exposure to Kinetic Investiture. In most cases this is in the form of the Sun of Taldain, though it has been stated that other forms of Kinetic Investiture would be able to fill that role, such as the Rosharan Highstorms, giving use to Sand Mastery across the Cosmere. This is one of the more uncertain parts of this theory, but by this principle, would the Kinetic Investiture released by Allomancy, in this case, Bendalloy Speed Bubble, be enough to recharge Taldainian Sand? If this is the case, the it appears that a Bendalloy Compounder would make the ultimate Sand Master. They would be able to limitlessly Sand Master via the use of Compounding hydration and recharge the Sand they expend via burning Bendalloy. Obviously this is only speculation, as we don’t know if the Kinetic Investiture of a Bendalloy bubble would be enough to re-Invest the Sand as the Sun or a Highstorm would, but I think there is some merit to this theory.

Prologue: How I got to this idea. Skip to Part 1 if you just want the speculations. Maybe you've read my post about Hacking Feruchemy and fueling it with the Investiture from other Key-based Magic Systems than Allomancy, namely AonDor. That got me thinking. Compounding, reduced to the Investitural workings, is: Powering End-Neutral Magic Release with another type of Investiture, an End-Positive one. Now, I've already speculated about the possibility of replacing Allomancy with AonDor as the End-Positive System, but what about the other half. And what other End-Neutral Magic do we know? Source: https://coppermind.net/wiki/Investiture#End-positive_Investiture BioChromatic Breath Like Feruchemy, BioChromatic Breath is End-neutral. No power is gained or lost, and both use the users Innate Investiture to do something rather than getting their fuel from elsewhere. However, that means that they are limited to using only the Innate Investiture. I'm not sure if we can count Returned as End-neutral, a) since they're not a magic system and b ) since they're part of BioChromatic Breath as a system. However, they have to use up one Breath per Nalthian week to stay alive. That said, we have confirmation that this only requires the amount of Investiture that is One (1) Breath rather than specifically a breath, as seen with Vasher/Zahel. Source: https://coppermind.net/wiki/Returned Fueling Awakening with Stormlight Returned can be categorized as Type I BioChromatic Entities. Sadly, we don't know if Vasher uses some kind of Conversion method, or if he is just able to consume Investiture in any form in the physical world to fuel his Awakening (aka his life). I write "in any form in the physical world" to make a distinction between something like the Dor or Preservation's Investiture and Stormlight or Breath. The former only enter the physical realm by activation and instantly take the form of whatever their key directs, while the other two are Investiture that is present without performing magic, sometimes even able to be stored in non-human carriers (see the broams on Roshar). Where am I going with this? If one Type of Awakening can be fueled by other Investiture, maybe others can too. Stormlight is basically endless, or alteast its a refilling ressource. On something like Scadrial or Taldain, Vasher would have a very hard time getting Investiture to stay alive. (He'd have to become a Metalborn to access Preservation's Investiture, for example), so Roshar is a good choice. Now, finally, what I'm trying to get at: I speculate that, with some methods that we don't yet know of or without, an Awakener holding Stormlight could use one or more Breaths in conjunction with their Stormlight to Awaken with a lot more power than they have Breaths. Imagine sticking a Hose into a Water container. The water won't flow upwards by itself, but if you suck on the hose until water flows out of the top, you can stop sucking and it will flow by itself for a while because the stream is established. (Yes, that's a very basic breakdown of how physics work, shhh.) That's basically how I imagine Awakening with more Investiture could work. I assume you'd need atleast one Breath to perform this. The Breath would act as a kind of spearhead, enabling you to perform the Awakening / speak your command. Only afterwards would you pull Investiture from the Broams around you (/ The Stormlight inside you / your connection to Preservation that is open because you were burning a metal at the time of speaking your command / etc etc etc) to fuel enough Investiture into the object to perform the Awakening. First Question to the readers: Do you think I'm onto something? Do you think this could work? Actual Theory This one I'm throwing out there to present a theory of what this could enable. Lifeless are already super cheap breathwise, so Type III or IV Entities are what you might use this for. So here's my theory: I think Azure's blade might was made with not just Breath. It's similar to Nightblood, but "weaker" and probably with a different command. Azure hasn't made a name for herself on Roshar long before the siege of Kholinar so maybe it wasn't exactly Stormlight that was used to awaken her blade, but I assume we might see another (shard)world in the Nightblood novel. Whether it were the Scholars of Silverlight, experimenting to see what the least amount of Investiture needed to Awaken a Type IV BioChromatic Entity was, or users of a Magic System we haven't even seen yet - maybe Aether - I think Azure's Blade is more than just a Nightblood 2.0 with a better command and less Breath, but represents a new step in BioChromatic Scholarship: Entities that aren't only BioChromatic. And who knows... Maybe Vasher is stockpiling insane amounts of Stormlight somewhere to use them for a massive Awakening somewhere/sometime in the future. Maybe he wants to Return someone (Shashara?) with it, or something like that. Anyway, would love to hear others thoughts on this.

Introduction message, eh? Hello everyone! I'm Benkinsky, and this year I binged everything Cosmere I hadn't red before 2020. And obsessive as I am, I have a lot of theories that those of you who browse r/Cosmere might have already seen. And its time to post them here. Remember me as the AonDor Compounding guy! Cheers! also, is there like an App of 17th shard? or do I use my browser to access it on my phone?

Hello hello fellow wordlhoppers, after some thought I want to return to my favourite cosmere idea: Compounding with something else but Allomancy. The most likely candidate: AonDor. (Mistborn spoilers) Part 1: What is Compounding? and how could it work with anything else but Allomancy. Allomancy uses Metals as Keys to tell Preservation's Investiture flowing through them from the Spiritual Realm what form/effect to take. Iron tells it to pull, Steel to push etc. Feruchemy uses Metals as Keys to tell the (scadrian) body's own Investiture what form/effect to save as. A Compounder genetically has both the abilities to tap and save the same metal. If they activate a key (burn a metal) that is already a different key (already tells Investiture a specific form to take) the Investiture that the allomancer uses for allomancy (Preservation's) instead takes the form that the feruchemic key tells them. Part 2.1: AonDor with Compounding broken down like that, you might get where I'm going. What other kind of magic uses Keys: Selish magic. Specifically, AonDor. In AonDor, the Aon acts as a Key to tell the Dor (Dominion and Devotion's combined Investiture) what form/effect to take. Aon Ehe tells it to be Fire, Aon Shao tells it to transform something, etc. These Aons can be modified to be Keys for extremely specific purposes. Part 2.2: AonDor Compounding: Aon Deo Aon Deo is the Aon for Metal. My theory: I believe Aon Deo could be specified enough that, if an AonDor user made a metalmind in the shape of that specific Aon or inscribed Aon Deo into a Metalmind, you could channel the Dor through the Metalmind, using the Dor to power your feruchemical release similarly to how Allomantic Compounding uses Perservation's Investiture. What are the Implications of this: 1. If a person had both the ability to use a Metalmind and use AonDor, they could get massive amounts of certain feruchemical attributes without saving them beforehand by using Aon Deo to power them with Dor. Part 2.3: Nicrosil Source: https://coppermind.net/wiki/Nicrosil What are the implications of this: 2. An AonDor Nicrosil Compounder could store a tiny bit of Investiture in his AonDeo Nicrosilmind, then activate it with AonDor and get basically infinite Investiture. 3. THEY WOULDN'T EVEN HAVE TO BE A FERUCHEMIST. Originally, I thought that if a Terrisperson managed to move to Arelon they might have a tiny chance to birth a Ferring who gets chosed by the Sheod. But read this again: Therefore, a Soulbearer could store their ability to use Feruchemy and another person tapping it would be turned into a temporary Feruchemist who has the ability to fill a metalmind (assuming the nicrosilmind was unsealed) If an Elantrian got their hands on an unkeyed Nicrosilmind, that temporary window would be enough to use AonDor to power it. Once the AonDeo Nicrosilmind is Compounding, it wouldn't be used up like in Allomantic Compounding. The Elantrian would have infinite Investiture. For Rosharans, this might seem arbitrary, but not for Elantrians. The Dor has local borders, it is difficult to use AonDor outside of Arelon, not even speaking of Sel. Using this Technique, Elantrians might be able to use AonDor outside of Sel. Part 3: possible difficulties with Connection Leaving Arelon might weaken the Connection to the land too much to use AonDor even with a source of Investiture. Possible Solution: Source; https://coppermind.net/wiki/Duralumin Elantrians could canonically tap Duralumin to use AonDor outside of Arelon, maybe even Sel. They don't even need to be a Ferring to do this. Anyone can canonically use a Nicrosilmind to temporarily become a Duralumin Ferring (see Bands of Mourning), I theorize that an Elantrian could use AonDor to Compound, turning the temporary abilities provided by a Nicrosil- and Duraluminmind into permanent abilities. This way, they could use AonDor without the Dor while also using the infinite Investiture provided by this trick to power their Duraluminmind to keep up their connection to Sel. > Be Elantrian > Aquire Nicrosilmind and Duraluminmind. > Tap Nicrosilmind while in Arelon. Become temporary Ferring. > Tap Duruminmind while in Arelon by activating your AonDor. Create infinite Investiture loop. > Permanently have infinite Investiture to power both your AonDor and the necessary Connection supplement to power it outside of Sel. I'd love to hear your thoughts on this theory and why you think it could or couldn't work!

Most other forms of Compounding are obvious in their effects: Iron Compounding gives much greater weight, Gold Compounding gives much greater healing, Bendalloy Compounding assures you’ll never get a bad case of the munchies ever again, etc etc. Other forms of Compounding are a bit more mysterious but nevertheless somewhat guessable: e.g. basically all of the Spiritual Feruchemy Metals (Fortune, Connection, Invesititure, Identity). However, one metal stands out from all the rest in that nobody really knows what it would do if you Compounded it: Copper. I’ve seen people guess ‘perfect recall’ (as in, Compounding a copper memory perfectly ingrains it into your brain without it ever fading); however, I also have an alternative theory. Compounding gives you a much greater quantity of whatever you’ve stored in your metalminds, and that being the case it makes sense to me that when you burn a copper metalmind you gain duplicate versions of the memory that’s inside it. Now, you may be wondering: What’s the point of that? What application could having multiple versions of a single memory have? Here’s where you have to remember the crippling disadvantage to copperminds: Once you store a memory in a coppermind it no longer exists in your head. You can either have it in your head or in your coppermind, but never both at once. And every time you remove it from your coppermind, the memory degrades a little more. Feruchemists developed a few tricks to get around this, of course. Remember the scene where Sazed has to write information down on a piece of paper in order to remind himself of what he had stored in his coppermind? But it’s a limited and less than ideal method. With Copper Compounding, however, this limitation becomes null. You could burn a coppermind, duplicate the memory that’s within it, and then store one of those duplicates in another coppermind while keeping the other(s) in your head. Moreover, with the creation of copper medallions, it becomes possible to share memories with others. Depending on how many duplicates a Copper Compounder is capable of creating (it should be quite a few considering it’s repeatedly said that Compounding is supposed to enhanced Feruchemical power ‘tenfold’), you could widely spread information depending on how many unkeyed copperminds you have available, all the while keeping the information in your head as well. It’s interesting to think about what might be possible with this skill. What is the limitation on how many memories you can duplicate? If a Copper Compounder had a coppermind like those of the old Keepers, where it contained centuries of inherited knowledge, could they duplicate those vast stores of knowledge into other copperminds? Imagine being able to keep infinite backups of valuable memories and information. That’s my theory, basically. And with medallions, Copper Compounding also becomes effectively the Feruchemical version of the printing press, able to widely disseminate large quantities of identical, reproduced information. Either way the main reason I like this theory is because I think it’s more in keeping with the original theme of Compounding: Instead of simply being able to store memories, you’re able to duplicate them; just like instead of only being able to store strength or speed, you’re able to enhance the power stored in the metalminds. What do you guys think? This is my first every theory post, so I'm curious what responses I'll get.

Feruchemic steel can store speed, everyone knows that. And speed affects many aspects of body, because body of feruchemist automaticly gain ability to withstand stress during taping metalmind. So taping Steelmind increases speed of mouvment, but also perception, thinking and reflexes. I remember also that increased metabolism has negative effect - they need eat more (like Flash - but i cant find WoB). So my question is - Is F-Steel increasing also regeneration speed? Not like "normal" Investiture healing, but more physical, by increasing speed of cells growth? Is Steel Compounder able to heal faster, not of course on Gold level, but more like A-Pewter level?

So, in compounding does one burn the power stored inside of a metalmind or does one burn the metalmind itself. In Alloy of law, Wax claims that Miles needs lots of gold for his constant compounding, this leads me to believe that its the latter; at the end of Alloy of law, it says that they removed all of Miles' metalminds so that he couldn't heal himself. I'm just a bit confused, and I have only read era 1 and Alloy of law.

So Compounding is really interesting and here is my take on what the various powers should be able to do. I realize that Brandon doesn’t want to give away things for future books (1 2 3 4 5 6 7 8 9 10 11 12 13 14) *there are a lot of copper ones)), so a good amount of this isn’t going to be verified until later. Some limitations that I won’t entirely cover are that the person compounding has to have enough metal to ‘burn’ to fuel their compounding, something entirely worth it for most of the powers, that the person can no longer use that metal for the allomantic power that it would normally endow, and savantism. So this is assuming that the Compounder has access to a ridiculous amount of their needed metal, and it is either in a form that they can swallow or make it into something that they can swallow (with C-Speed or something) so that they can just do this and have essentially as much F-[metal] (or C) power as they want. (C-[metal] refers to compounding that metal, F-[metal] is feruchemy for that metal, and A-[metal] is allomantically using that metal) (the (personal) tags on what the metals store is whether or not the attribute comes from the Compounder, or is able to be ‘given’ to the Compounder (not including unsealed metalminds). The ?’s are ones that I am unsure about (does a pep talk allow you to store determination that someone else was able to give to you?)) Please comment on some discrepancies and better applications for the compounding powers. Intro WoB and short explanation Physical: Iron: (Skimmer) Stores (personal) weight (when filling, you are lighter) so by filling the metalmind a little bit, a twinborn Skimmer + Lurcher can compound feruchemical iron to have a virtually unlimited density (while somehow remaining able to stand). Steel: (Steelrunner) Stores (??: if someone slaps you or runs into you, can you store that kinetic energy?) speed (when filling, you go slower) so you can have essentially enough speed to move at very fast (limited by air resistance and friction)(but if you remove the friction…) in relation to other speeds on the planet. Tin: (WoB)(Windwhisperer) Stores (personal) sensitivity (when filling, you are not as sensitive (for one of 5 senses)). This is not a very effective or useful power because you will be overwhelmed if you simply use massive amounts of storage. See Spook for why this is not a great idea. This is better used in (or like) regular feruchemy, storing a good amount and using it slowly. Specifically, you could likely blind yourself by tapping too much sight, which narrows your focus (Sazed when he meets the Koloss in WoA). If you have other powers, you could store and Compound them, which could be useful. Pewter: (WoB) (Brute) Stores (personal) strength (when filling, you are weaker and more scrawny). This would allow for the Compounder to have a huge amount of strength but might make the Compounder too bulky to do anything (Still, his bulk was daunting. He probably wouldn’t have been able to walk or maneuver with such size—but it didn’t matter, for the koloss had already knocked him to the ground. (The Well of Ascension starring Sazed)). Similar to tin in use (don’t use too much at one time) Cognitive: Zinc: (WoB: I’m pretty sure that this is referencing filling the metalmind so the opposite is likely true for the tapping) (Sparker) Stores (personal) mental speed (when filling, you think slower). Compounding could allow you to have T. level (going off of the fact that Odium says that he did it without access to Fortune) days every rusting day. Edit: on a mainstream kind of intelligence. How did TLR die?? With using the compounding, it would be like everyone else was living eternity in a moment of your time, or that you could process the movement of a Steelrunner, but not be able to do much about it. This is scary. Brass: (WoB) (Firesoul) Stores warmth (when filling, you are colder, and heat will flow to the area that you are storing from). This allows you to store heat from around you, which could allow you to act as a freezer, or ignore the heat conditions in your house. From the WoB at the beginning, you are protected from drawing too much heat to damage yourself (Coppermind is wrong on this, based on the WoB). That standing, you can’t just walk through a fire (or a nuke) and expect that the heat will have no effect on you (mainly for just filling, not the Compounding); you will probably be burned / might die. The opposite is not really as true, because you can just use the compounded heat to melt something like solid hydrogen or a bose-einstein condensate (well, you might experience burns if you are reacting to a bose-einstein condensate without C-Zinc). Essentially, you could be a nuclear reactor and just dump some brass flakes down as fuel. You have a nice amount of energy that is in a usable form of plain heat, which can be turned into a bunch of different types of energy. You could also become Firefight, essentially. Copper: (Archivist) Stores memories (when filling, you lose the memories to the metalmind). We don’t know what the compounding would do (see the various numbered WoBs at the top), but I am under the assumption that compounding would allow you to know multiple copies of something, and be able to store the copies into various metalminds (basically, I think that you can copy the metalmind’s contents to another metalmind). Bronze: (Sentry) Stores (personal) wakefulness (when filling, you are more drowsy). You could constantly stay awake, and even if you did sleep and keep the Compounding on a dull flow, you could still store the excess into metalminds: (while sleeping, he couldn’t fill metalminds - or, at least, he could fill only one. A bronzemind, the metal that stored wakefulness. -The Well of Ascension chapter 50 from Sazed). I kind of doubt that a Sentry & Seeker Twinborn would ever sleep unless they really loved to sleep. Sentry Compounders would also have a heightened sense of awareness (Alloy of Law Ars Arcanum). Oh, and once you start, you don’t want to stop abruptly. This might end up with the same effects as TLR and Atium, eventually. Spiritual: Chromium: (WoBs are RAFOs) (Spinner) Stores (personal) luck (when filling, you are less lucky). This is theorized to allow you to predict the future, and while I think that is possible, I think that a possibly more practical use would be to just be functionally immortal unless you are doomed (inside a black hole level of doomed). I think that when you are Compounding Chromium, something like a possibility of time travel would occur: (back in time you try to shoot someone who turns out to be one of your ancestors) something would happen to stop the attacker from being in the right place, have an empty cartridge, or intercept the threat (i.e. a deer runs in front of your great (* whatever) grandparent). Unless physics or something similar would forbid it, you would be saved from ‘fate’. An avalanche might happen, but you might be caught on a tree that was bent and flings you up, you could fall into a cave, or get whisked up the mountain by an alien spaceship that was passing by. You probably couldn’t commit suicide while Compounding Luck. The only downside is that you couldn’t use your chromium to leech anyone’s allomantic stores if they are all filled with Luck, but if it is needed, someone else might end up doing it for you. Nicrosil: (WoBs are RAFOs) (Soulbearer) Stores (the ability to use) Investiture (when filling, you store your ability to use a certain type of Investiture). When you compound it, you would have an unlimited supply of Investiture, which you could theoretically use to power your magic systems to massively larger levels of power. If you are a Mistborn and a Soulbearer, you would be virtually unstoppable (unless you are already dying, and in that case, someone better have a spike to steal the Feruchemy and MB powers). And with storing powers, you could Compound and use KR powers. And you could worldhop (though it might short out Harmony’s perpendicularity). And this is (probably) a NB protection power. Aluminum: (most WoBs are RAFOs) (Trueself) Stores (personal) Identity (when filling, you store your Spiritual Identity to something (and it is possible to store all of your identity: see BoM)) with a large sense of Identity, you couldn’t do much, but you might be able to heal yourself like Hoid does (healing through a relation to the Spiritual Realm). If you tap old Identity, you could possibly rewrite your spiritweb so that you could heal back to a previous state. With someone else’s Identity, you can do plenty. You could theoretically become someone from the various areas on Sel, someone from Roshar (the Nightwatcher likes native people more), gain an accent, use someone else’s’ metalmind, or hack and use it as a soulstamp. You might also be able to be inhabited by their ghost Cognitive Shadow and essentially let them body-snatch your body (see lower in the thread). Not as useful as Connection. Duralumin: (Connector) Stores Connection (linked between two things) (when filling, you are storing Connection to something). This allows you to go unnoticed in a crowd if you are filling, but with the Compounding, you could instantly become anyone’s best friend (unless their best friend is already a Duralumin Compounder). There are some cool things that you can do with other people’s Connection too. (Spoiler for MB SH) When Kelsier smashes the orb to gain a bunch of Connection to Preservation, and if you give him an unsealed Duralumin metalmind, and convince him to store some of that Connection, you could theoretically take that Connection out of the metalmind and Compound that to gain a ton of Connection to Preservation, which could allow you to ascend to that Shard when it dies. If you repeat this with other people, you could learn languages, steal spren bonds / aviar bonds (you might be able to become a human aviar this way) (they will only stay if they agree to stay), or get enough Connection to get the Awakener from something that the filler of the unsealed metalmind Awakened, even if they Returned since then. You can also overcome the distance barrier on Sel (helps with initiation to other planets’ magics). You should be able to qualify for being a Returned, somehow control a Kandra, or bond an Honorblade (you just have to be aware enough of your Connection to it to Compound to Bond it). This is really powerful. Hybrid: Cadmium: (no one really asks Brandon about F-Cadmium users) (Gasper) Stores oxygen ‘breath’ (when filling, you are short of breath). This would allow you to have an unlimited supply of ‘breath’. You don’t have to breathe anymore. It also might allow you to get more oxygen in your blood (to your brain), which would give you a bit more of a heightened perception and possibly mental speed, physical performance, and concentration (Alloy of Law Ars Arcanum). Bendalloy: (Subsumer) Stores (personal) nutrition (‘energy’) (when filling, you store nutrition (and matter?) from yourself) You might become skinnier when (filling) not eating, and when eating, you don’t ever need to be full (Alloy of Law again). While compounding, you don’t ever need to eat, but you might gain a significant amount of weight if you deplete the metalminds quickly, but not so much that you explode (the Feruchemy will protect you). Probably. (the feruchemy might just stop your veins from getting clogged or something similar. Lift could use this to fuel Stormlight endlessly. Gold: (Bloodmaker) Stores (personal) health (when filling, you are less healthy). This should allow you to heal back from (almost) whatever, provided that you still picture your Spiritweb as being what it was before you were injured. (see Max Hundredlives in Allow of Law). You could theoretically heal back from getting spiked. Electrum: (Pinnacle) Stores (personal?) determination (when filling, you store your determination and are more depressed). When Compounded, you would be very impulsive and overconfident that you could do whatever you wanted (Alloy of Law Ars arcanum). This could be dangerous to yourself by thinking that you can (and should) do something that will kill you. Best used in small amounts. Godmetals: Lerasium: Only Brandon knows, and we probably won’t ever see. Atium: Stores (personal) Youthfulness (when filling, you are older). We see this onscreen with TLR and it is mentioned with Marsh. Limitations here. Harmonium: No rusting clue except RAFO There are ways to become more powerful than a compounder (in some ways), but that would require being a Mistborn, using a spike, or getting hit with a Nicroburst (the power, not the user). Other limitations on Compounding are that you have to use Harmony’s power and there is also a weird interaction with Hemalurgy.

So, what, in your opinion, is the strongest Compounder combatively, and why? I personally can't decide between Atium, and Chromium. Either one is practically unkillable, and if they attack you, you have practically no way to fight back. Originally my list of strongest included Gold and Steel, but I decided that Gold was out because it didn't have very good offensive capabilities and I cut Steel because you could easily be killed from behind in an ambush.

On one of my forums (found here), it ended up asking why nicrosil Ferrings didn't all end up with Lord Ruler-style compounding (which I'm going to say is called being a Full Compounder.) Basically, Feruchemists can use nicrosil to store and tap Investiture. So, why don't they all make two distinct metalminds and tap one of them in order to burn the other? Does it not work like that? Has nobody thought of that? Are they all hiding that they've already done it?!? (Okay, that last one is pretty unlikely...) But why haven't they all done it and let everyone else also do it via unsealed metalminds?