Trusk'our

Hemalurgy can take Connection via duralumin. Could one take the Connections that the heralds have, then give themselves those Connections, then somehow "heal", those damaged and weakened Connections to re-forge the Oathpact?

Most cognitive shadows require some intake of investiture to sustain themselves, while others don’t. In the RoW headings written by the hearalds, it says that the heralds needed the bond of the Oathpact to stay alive, and so when Jezrien was captured with a raysium dagger, it also cut him off from the Oathpact, eventually causing him to die. Would Kelsier, being a Sliver, die if he were to be captured in a gemstone, or would he remain “alive”?

Can you capture a radiant spren inside a gemstone, perhaps by using raysium? Would you be able to then use the gemstone containing the spren to then replicate the surges? If the spren was bonded to a radiant, could they still summon them as a shardblade, or use their surges?

Could you take the gemheart of one of those huge, island sized greatshells, and then capture the Stormfather in it? Could you use this gemstone to create a fabrial that would allow a virtually infinite amount of stormlight to be harnessed at will? Huh, I seem to have come up with a theory on how to destroy Roshar, I guess.

Why wouldn't Preservation's investiture be able to be used to copy another Shard's magic system? Standard compounding already does this, fueling Feruchemical abilities with investiture that normally would be used for Allomancy. I think that one of two things would happen if you tap the nicrosil mind that holds these copied breaths though; either they stick, or it still works, but only temporarily. The former option is super duper busted in terms of cosmere balance. You'd have the ability to pull investiture from a shard, then never give it back, keeping it for yourself or the endless number of awakened objects you could create. Storms, you could start to mass produce Nightblood-esc weapons, since you'd have a basically unlimited number of breaths to use. You could make every single person on the planet ageless if you wanted, which would also have some serious consequences for "balance". Since the investiture could be stuck to you and never leave, and you can just keep adding to it, you could, potentially, ascend to become an avatar of Preservation, which should be possible, though I doubt you'd be able to take the entire Shard itself. Yeah...this is just too OP to honestly consider, in my opinion. However, the second option seems more likely. If I'm correct, Endowment's investiture is inherently more "sticky", allowing it to stay with people who gather it the the form of bio-chromatic breaths. If Preservation's power was used to copy the abilities of breaths, you'd probably be able to store the investiture in metalminds, but as soon as you tapped them, they'd start leaking away from you, kind of like with surgebinders. So, you could probably gain access to the heightenings, but only as long as you use compounding to make more breaths to replace the ones you lose, and you could probably also awaken, but your awakened constructs would lose their charge over time, and would become mundane objects again. But of course, this is all theory since we haven't seen any examples of it yet. But it's fun to guess anyway

Thanks!

When I say 'heightening' what I mean is that by holding lots of innate investiture of some kind you get effects that are similar to what you'd get by holding lots of bio-chromatic breaths, which on Nalthis is known as the heighteings. Kind of like how there is Yolish lightweaving, and Rosharan lightweaving; they have very similar abilities and have the same name, but are still distinct. Sorry about the miscommunication there.

I wonder if athers will live as primarily spiritual entities. That'd be pretty interesting, and would be a way to separate them from spren.

More money, more resources. Though, you do have a good point; it would probably be like adding a penny jar to a vault of cash.

I know that Roshar doesn't use gold as a way to mint coins, but surly, surly someone would want to buy some, I would think. I just can't wrap my head around it; I must just not understand economics well enough, I suppose.

Ah, that makes more sense now. I was under the impression that holding stormlight actually drained you a bit after it ran out, but if that's just in comparison to how the characters feel after holding the power, than that makes a lot more sense. Thank you for explaining it to me

Why don’t the soulcasting radiants, like Jasnah, make tons of gold and other precious metals? I know if they did this in excess, it would likely crash the economy, but we don't hear of them doing this at all, not even in small amounts.

Okay, first of all, I have no idea what raysium would do as a Hemalurgic spike, and it would be pure insanity to try and figure it out before Sanderson tells us. And that's me saying that. But here are some ideas I had for how you could use raysium in combination with Hemalurgy without using it as a spike itself. Can you use raysium to extract the charge in a Hemalurgic spike, then add multiple charges into one spike to create a heightened effect, but while using only one spike? Would only one charge be able to effect you at a time, since they're created from separate pieces of spiritweb? Could you store a hemalurgic charge inside a perfect gemstone to prevent it from leaking? Would the gemstone still be able to grant a Hemalurgic effect if you stabbed someone with it, or would it need to be transferred back to a metal that corresponds with the Hemalurgic charge? If you could extract the charge from a spike that had weakened to the point where it would no longer lose power via Hemalurgic decay, and then combined multiple charges, would they then leak again, or since they probably still count as separate things, like how bio-chromatic breaths are separate, would they no longer lose their charge?

But if you feel tired...doesn't that mean that you don't have as much energy to keep fighting, or stay alert to other dangers? I'm sorry if I'm starting to turn this into an argument; I'll stop posting about this subject if you'd like.

Yeah, that's a good point. Still, in the moment where you need to feel in tip top shape, gold Feruchemy seems to hold a slight advantage.

This was just a little question that I was wondering about; how many breaths exactly did Vivenna and Vasher have in Warbreaker?

Still, if a radiant got stabbed and needed to heal the wound, they'd need to exhaust themselves at least a little, because the stormlight would get used to heal them, unless they want to constantly hold stormlight, and that isn't going to be permanent. A gold Ferring, if they got hurt, could just heal, and they'd be fine, no strings attached aside from having a more limited pool of investiture to draw on.

One other little quirk of using Forgery to create a 'clean' Hemalurgic spike might be that it doesn't cause you to ache from Ruin's investiture, since you're not using his investiture in this case, you're using the Dor, and whatever sensory effect it grants.

Most worlds that don’t have a shard in residence have only a small amount of naturally occurring investiture there, and the magic users themselves are generally weaker. Could Hemalurgy be used to create beings of great power using these ‘lesser’ systems, stapling smaller chunks of investiture together to make a stronger entity, then allowing that entity to pass on it's strengthened Connections to the system and it's investiture to it's descendants, similar to how lerasium mistborn allowed Allomancy to become significantly stronger on Scadrial by passing on their spiritual DNA to their descendants? I think that this might work, due to this WoB

I just realized another issue with attempting to gain the heightening via Hemalurgy. Since each investiture has a different sensory effect, such as Allomancy having a warm, burning feeling, or stormlight giving you a burst of energy, would gaining heightenings via hemalurgy cause you to feel different from gaining them by gathering bio-chromatic breaths? As Marsh describes his spikes in Mistborn: The Final Empire, they would constantly throb, and the more investiture you have the stronger the feeling, so would you just be in incredible pain all the time?

Here's another rather large post of my insane ramblings Can you use raysium to force someone to benefit from investiture? For example, normally someone has to be willing to tap a metalmind before it will happen, but if you could remove the investiture from an unkeyed metalmind via raysium, then inject it into a Feruchemist, could you ‘make’ them use that investiture? Could you Hemalurgically grant someone Feruchemical copper, then inject them with unkeyed memories to alter their perception? Could you give them painful memories to incapacitate them, or memories that view something in a positive light to get them to like that thing? Could you force stormlight into a radiant, then use Allomantic nicrosil to force a massive burst of power that would exhaust them? Could you remove the breaths of an awakened object, then inject those breaths into another object? Would the new object obey the same Command used for the previous object? Could you remove a Lifeless from their body, then inject them into another corpse? Could you put a human Lifeless into a Koloss corpse? Could you put a Lifeless into a living human body? Would the human be compelled to obey the Lifeless Command? If Nightblood were to be satiated like when he fed on Odium, could you then remove part of his essence, then transfer it to another sword, allowing you to make a duplicate of him?

I once made a theory that you could possibly Hemalurgically spike an Allomantic gold shadow and then graft it to yourself in order to overwrite your spiritweb, kind of like a bootleg version of Forgery. But could you instead spike an Allomantic electrum shadow? Perhaps you could give yourself skills and memories from a hypothetical future version of yourself? You normally would only be able to see a few seconds into the future, but maybe duralumin or reverse compounding would allow you to stretch it further.

Aviar seem to draw a small amount of investiture directly from the spiritual realm to fuel their powers, without needing to use a catalyst, like how Allomancers need to. If someone could Hemalurgically take an aviar power, could they use this to get ‘free’ fuel for any other manifestations of investiture they might have, such as Surgebinding or Allomancy?

Spren live primarily in the cognitive realm, but when they bond a radiant, they manifest mostly in the physical realm. Is there a spren, or spren like creature that lives primarily in the spiritual realm? (Aside from shards, that is)

When you give all your bio-chromatic breath so someone else, it takes a small part of your own investiture with it, but since the transfer of investiture is fueled by color, this investiture is not lost in the exchange. Does this mean that a breath will grow ever so slightly in strength the more people it has been transferred through? Would it eventually divide into a new breath, or will it stay a single, albeit stronger breath, somewhat like how the Returned have a single, but extremely powerful breath? Would there be a benefit of having a single, very powerful breath over a large number weaker breaths, or is it disadvantageous since you probably can't easily split the investiture within it? If a non-Nalthian were to get a breath, and then transfer it to someone else, will their own innate investiture change its Intent, since their own investiture’s Intent comes from a different shard?