KandraAllomancer

We do have the Surges of the Fused, but they are technically from Braize, so they hardly count. My guess would be that dual Shard magic system are created when two Shards cooperate (Feruchemy, Surgebinding, Surge Fabrials) and possibly when their Investiture is forced to merge somehow (Voidbinding, Threnody might be a minor Shardworld version of this). Neither situation has happened for C&O or H&C&O so far, but they seem entirely possible in the future

I agree with all your points except this one. Odium was completely bound to Braize at this point and BAM started to act against his wishes and interest (and using Adhesion as well). Something happened to her that did Connected her to Roshar, but my bet would be on "uncorrupting" her with Honor's Investiture, leading to the creation of the Rhythm of War and corrupted spren of Honor and Odium like Glys

The godmetal's name would be simply Koravellium: Cultivation seems to be the only Vessel with a surname or a family name, which could imply a Yolish noble or even royal origin. It would certainly explain her more reserved and haughty attitude towards Dalinar compared to Tanavast and Rayse. The 'avast' part of Tanavast could mean something akin to 'prince/king consort' then Edit: Cultivation's Vessel being a dragon has just just confirmed:

The Sibling also uses the term, so I would assume it is from the pre-Shattering times, probably of Yolish origin. Also, if we're talking of weird linguistic coincidences, Navani uses the word Figgldygrak... Did she lean that from Wit? Or is it some kind of secret clue, maybe?

Voidbringer Cremling. Voidbringer. Storming. Cremling.

OK, so the fact that Jasnah's name sounds very much like the Polish word for 'bright' ('jasna') has been recognized: it's in the Stormlight Archive Wiki article and even has it own WoB: Less know fact is that a name of one Herald (Vedel) also sounds similar-ish to Wedel (pron. Veh-del), a well-recognized brand of candy in Poland (I think Lift would approve). And now we finally have the name of Cultivation's Vessel: Koravellium Avast / Koravari. 'Kora' means 'tree bark' in Polish

tl;dr version: In this post I will try to convince you that Voidbinding is a nascent magic system of both Odium(“void”) and Honor (“binding”), and present a theory on how it was created Voidbinding doesn't make sense as Odium's magic system The name: we now know from multiple sources that Adhesion, the Surge of binding things together, is the one closest to Honor. The Fused don't even recognize it as a Surge; they talk about Surges, but don't seem to use the word Surgebinding. They are called Voidbringers (I'm sorry, Singers ). Why would Odium's magic have 'binding' in its name? It's pointless: why would Odium grant anybody the power of futuresight if it interferes with his own and ultimately leads to his downfall? 10-centric: Voidbinding has ten levels. Yes, there are nine Unmade and they lack the Bondsith one, but that's just happenstance – we know from the Sibling that the tenth Unmade can be created. Why would Voidbinding be based on the number associated most closely with Honor? Why is the Voidbinding chart so similar to Surgebinding and so unlike the Fused abilities? Lore: the first mentions of mortals using Voidbinding abilities we know seem to be from around the time of the False Desolation: Listener songs mention the Nightform (and BAM as a source of Forms of Power) and we see potential information about corrupted Truthwatcher spren in Urithiru Gem Archive. Besides that we only have the general idea that futuresight is of Odium, but that could have come from the Unmade alone (per Taravangian's word, they all can grant it). There's rich lore about the Unmade, but none about Voidish Surges besides Illumination. The Fused are surprised that Voidspren can bond with humans and they don't see anything weird with the fact that there are no Nightforms around during the Final Desolation. Previously I believed that Voidbinding might have originated on Ashyn, but BAM's deep ties to Roshar seem to disprove that Unexplained phenomena: what's the source of BAM's massive Connection ability? Why did her imprisonment caused so much damage to Roshar if she was just Odium's splinter? Why did the Sibling stop hearing Honor's Rhythm? How could BAM and Sja-anat rebel against Odium's will? Why was Warlight never discovered before? Surgebinding vs fabrials Before we move further, one more thing needs to be discussed: why are there two magic systems of Honor and Cultivation? The Rhythm of War finally gave me some idea about the difference. The fabrials are like feruchemy – they are a perfect balance between the powers of two Shards, as indicated by the nature of the Sibling and the Towerlight. Surgebinding is also of both Shards, but it's biased towards Honor. It uses more of his Investiture: it's powered by Stormlight, Honorblades are Honor's splinters, the most powerful and mystical Order is based around uniting, not growth. What happened with the surplus of Cultivation's Investiture then? It's simple: it became the basis for the Old Magic, a magical “appendage” originating from a single Shard Ba-Ado-Mishram is the source of Voidbinding I believe that's what Odium wanted: a simple set of magical powerful abilities to be used by the Unmade to do his bidding. That's why the Voidbinding was called the cousin of the Old Magic. It was always meant to be used by the Unmade only, not become a full magic system. I believe, however, that at some point something extremely important happened – BAM was infused with Honor's Investiture and completely transformed. I'm not sure how or who did it; we have several plausible suspects: Ishar, Honor, Cultivation and (Dawnshard spoilers) Whoever that was, as a result of their action BAM became deeply Connected to Roshar and turned into something similar to the Sibling. She was suddenly able to produce Warlight and use it to control the Singers, just like the Sibling controls fabrials. She was able to grant Forms of Power from a completely new magic system: full, 10-centric Voidbinding, whose relation to the original Unmade abilities is just like the relation between the Old Magic and Surgebinding. Her abilities (and newfound autonomy) extended, to some extent, to other Unmade, especially Sja-anat, allowing her to corrupt True Spren. The one thing she couldn't do in the days before her imprisonment, however, was to create spren that would grant full Voidbinding – there wasn't simply enough Odium Investiture on the planet. Now, however, the situation has changed: the Everstorm circulates Roshar and clashes with the Highstorm, providing the exact conditions that she needs, once she's released (most likely in Book 5). This will lead to unleashing the full power of Voidbinding, which will become a major plot point (and a weapon against Odium) in Arc 2

I'll search for the illustration showing all the Radiant spren, then probably take a quick glance at Ars Arcanum and start with the interludes

That is also a possibility, especially if Kaladin ends up being Dalinar's Champion (though I'm leaning towards Szeth these days, to be honest)

It does explain the symbolism of the spear on Scadrial, and it extends to Roshar as well (spear being Kaladin's weapon of choice, Moash killing Elhokar with a spear). Its connection with Dalinar is more mysterious though; his family crest does include a crown and a tower, but not a spear. Also, as I found yesterday, Rathalas was located on the shore of the Sea of Spears

I'm fairly sure the answer is no. The 17th Shard is affiliated with Frost and shares his non-interventionist policy. The three members of the organization we meet in the Way of Kings are all Invested and, based on that philosophy, would extremely likely refuse a Dawnshard (they would try to hide somewhere though, given the chance). As for Khriss, I find it hard to imagine that she would be so irresponsible to run around Cosmere with such a powerful weapon; she would quickly become a target for forces such as the Ire

Unlike with previous books, there's a year long gap between the events of Oathbringer and Rhythm of War, which might be significant here

Why? Because they made a binding Oath that none of them would pick up a Dawnshard. That makes a lot of sense: they were about to kill Adonalsium with them and knew how powerful they are. There were sixteen of them and just four Dawnshards; clearly some of them would end up with an extremely unfair advantage over others if they didn't decide to never use them again. It would also explain why Honor and Cultivation apparently didn't use them against Odium directly (I think the Oathpact might have Dawnshardic origin though). If this post turns out to be significant, then another Dawnshard might be on Scadrial (Leras did mention a buried weapon in the Secret History...) and, once again, it wasn't used against Ruin. If that is the case, then Odium cannot be a Passion Dawnshard as I previously suspected; it would, however, provide an explanation for him being terrified of Dalinar Ascending at the end of Oathbringer, as he could possibly combine Honor's Investiture with a Dawnshard (Unity?) now The one remaining question would be if Autonomy's Avatars can become Dawnshards; if so (which I think is believable) then they would be an excellent villain for the space-era Cosmere

During my re-read of Dawnshards I realized something I missed the first time: just before becoming a Dawnshard, Rysn was holding a spear. Nothing special on its own, but it gets so much weirder when compared with other evidence. As discussed in this great post: the Sovereign's Temple in Bands of Mourning did have a mural that bears strange similarity to the one in Akinah (indicating that Kelsier might actually be another Dawnshard) and a statue holding a long spear. Then we have this Death Rattle: It obviously refers to Dalinar, but only the tower (Urithiru) and the crown (king of Urithiru, Bondsmith and leader of the KR) make sense. Why the spear? Unless the spear refers somehow to Dalinar becoming a Dawnshard of Unity as the next step of his fight against Odium... Using a spear as a symbol of a weapon that killed a God can be a reference to the Spear of Destiny from the Bible. And, as an additional extra-crazy bonus, other names of the Spear are Holy Lance or Lance of Longinus and (Perfect State spoilers) I really hope that's not a true connection

I couldn't agree more. Also, there are at least two additional hints in the books: 1. Dawnshards (plural) were used to destroy Ashyn, so there's at least one intact Dawnshard besides Change somewhere around 2. Dalinar seems to be on a mission to find the true God - and the Almighty doesn't count since he could die. The problem is, so could Adonalsium, so, unless we include the God Beyond (who will definitely not make any appearance in the books), we're out of Gods, so to speak. Dawnshards being eternal, unchangeable pieces of divinity solve this apparent contradiction There's one terrifying realization, though - if Dawnshards cannot be destroyed or splintered, what happens if a Dawnshard is killed by Nightblood? Would Nightblood become a Dawnshard then? How powerful could it get? If Odium really holds some Shard-splintering Dawnshard, as some of us (including me) believe, it could actually become a plot point for the Arc 2

I agree on the inherent differences between Rosharan magic and that of Nathis and Sel, but I'm not sure if such Commands would always require language rather than simply visualizing the result in your mind. The way I see it, the most powerful magic a mortal can wield (without full Shardhood) requires some kind of temporal Ascension, either due to holding a massive amount of Investiture or combining it with a Dawnshard. I think it happened just a few times is Cosmere history (usually with terrible side effects): using the Well of Ascension, destroying Ashyn, the Shattering, probably creating the Oathpact as well. In all cases the people involved didn't probably need some proper wording or formulas, just the Intent and a clear image if what they wanted to achieve. Dalinar might have access to something like this (one of the Sleepless actually states explicitly that he is more dangerous by siding with Honor and remaining a Radiant), but he's not aware of that fact yet, so the Intent isn't there

I does, however, have significant side effects (if we're talking about hemalurgy) and, besides, the whole process requires atium which is very hard to come by in Era 2. Both Sel and Nalthis have some stable population of immortals worshiped as gods, while on Scadrial and Roshar immortality is mostly reserved for semi-mythical figures, at least when we're discussing humans Southern Scarian technology relies on Excisors, whatever they are. I'm not sure if the could have been created before Era 2 and harmonium. Roshar is more complicated. Surge Fabrials seem to require some very esoteric knowledge and abilities. Regular fabrials are easier to produce, but I feel like they belong in the minor Shardworld magic category - their creation might've been possible before the Shattering given that there were Highstorms, spren and Singer forms on Roshar back then. They also don't replicate the more powerful forms of local magic. On Sel and Nalthis, on the other hand, a magic user can create a magical object for someone else with just Command or proper Aon I agree on Susebron, but he's just cheating A skilled Radiant or Mistborn can do a lot with the powers they have, but they don't get completely new skills (unless you count Oaths). An Awakener can discover a completely new skill (Vasher learnt how to erase memories, for example), very skilled Elantrians can create matter from pure Investiture etc. That a fair point, but the way I see it, it really comes down to scale. You need 2,000 Breaths for the first truly overpowered Heightening, while a single nugget of lerasium can make you a Mistborn capable of controlling kandra or koloss, for example

This is more an observation than a full-fledged theory yet, but I found an interesting pattern amongst the magic systems on major Shardworlds. Before we start, a few caveats: This post contains spoilers regarding most Cosmere works It relies heavily on a speculative assumption that each of sixteen Shards can be mapped to one of four Dawnshards and the existence of a Unity Dawnshard encompassing Honor, Devotion and Dominion I excluded two important Shards based on their atypical situation: Autonomy (seems to have Invested on Taldain's sun rather than the planet) and Odium (prefers corrupting local Investiture to Investing on a planet, currently forcibly bound to Braize) The remaining four major Shardwordls can be divided into two groups with many shared characteristics: Nalthis & Sel Planets that have either one Shard (Nalthis) or two Shards belonging to the same Dawnshard (Sel) Magic is based on commands expressed through spoken language (Nalthis) or symbols (Sel) Said commands can be combined together to obtain more advanced effects, leading to almost limitless number of potential applications Individual experience and skill have huge impact on what you can achieve with magic given enough Investiture Immortality is easier to obtain and more common than on other worlds Overpowered artifacts (Nightblood, Elantris) are easier to create Magic users can easily create items or devices usable by other people Scadrial and Roshar Planets with two Shards most likely belonging to different Dawnshards A small set of clearly defined powers whose number has some Cosmere significance Fewer possible interactions between powers, but they can be quite powerful (e.g. Compounding , Bondsmith synergy with other Orders) Overpowered abilities can be obtained through contact with pure Investiture of a single Shard (lerasium, atium, Honorblades, Old Magic) Magitech that can replicate the effects of the main magic system(s) seems to rely on Investiture from both Shards (harmonium and, I'm assuming, spren in Surge Fabrials) I'm not sure what to think of it, to be honest. It could be random, given that it's just four planets we're talking about. If not, maybe different Shards are attracted to different planets, possibly following unknowingly some plan devised by Adonalsium? Or do planets, and by extension magic systems, behave differently depending on what set of Shards (and corresponding Dawnshard affiliations) Invest there?

It's relatively new and apparently the disease magic uses "spren-like Investiture":

I'm not that sure about Ashyn. We have WoBs confirming that the magic there used the same principles as Rosharan Surgebinding and was 10-centric; that there were (and still are) spren on Ashyn and Oathgates were possible there. Plus, (RoW spoilers) Given the similarity between the powers of the Fused and KR Surges I would assume that the Surges are similar in the whole Rosharan System

Definitely, but would that level of power be enough to Shatter Adonalsium (or even splinter a Shard)? Dalinar seems to be a good candidate for another Dawnshard and if he was aware of the full extent oh his powers he could probable do some truly amazing stuff (e.g. replicate the Oathpact). Still, I doubt that it would be enough to splinter Odium, for example

I think there's a possibility that the difference is that three Dawnshards are currently located on Roshar: Change, Unity and some unnamed destructive one (Rayse or, less likely, Nightblood). If this theory turns out to be true: then the fourth one would be Kelsier and bound to Scadrial for now

Hoid used to be a Dawnshard in the deep past and probably isn't any longer: Hoid's Dawnshard must have been used to Shatter Adonalsium; since he refused divinity at this point, he probably lost the Dawnshard as well. That leads to another question though: if bonding a spren is enough to devastate a planet, what level of Investiture is enough to perform the Shattering? It seems that the original Vessels, Hoid and possibly Frost must have already been at a level at least comparable to the Tenth Heightening, right?

Yeah, here is the exact WoB: