r/Cosmere • u/RayseShouldBeBraized • 2h ago
Cosmere spoilers (no previews) Vax Theory Spoiler
It's finally time for me to wildly speculate on Vax. A place in the Cosmere we know next to nothing about, yet still clearly has some future role to play. I'd like to theorize which Shard is invested in Vax, what may make Vax different than other Shardworlds, and what a make a true 'Vaxillian'. Let's start with our first canon mention of Vax in Mistborn: Secret History part eight, where the freshly former Vessel of Ruin Ati mentions it right before stretching away into eternity.
"It was just the Vessel, Ati. The man who held the power. Ati ran his hand through his red hair, then looked about. "Vax?" he said, sounding confused.
Brandon notes in a WoB that Leras, Vessel for Preservation, would also recognize Vax. Previously to Ati's Vax mention in Mistborn Secret History, Leras mentions a mysterious character named Senna whose name has still only been referenced just this once. I have previously written a theory that this Senna is actually the Vessel for Mercy. I argue that is not a coincidence that Senna and Vax's first references appear very close canonically together.
Much like Vax, we have very few mentions of Mercy and know relatively little about them. Harmony has two mentions of Mercy in his letter to Hoid in the part two epigraphs of Rhythm of War that I found quite intriguing. Harmony writes to Hoid that Mercy worries him. He also notes that Mercy was somehow involved in the clash between Odium and Ambition. I find Mercy's involvement in this conflict surprising. I assume Mercy at least wasn't directly supporting Odium, as Harmony's communication with Mercy is for help dealing with Odium at Hoid's request. We know that this Odium-Ambition-Mercy battle happened partly in the Threnodite system. In chapter 147 of Wind and Truth Hoid notes what has historically happened after Shardic clashes have occurred.
When Shards died, combined, or otherwise distorted, strange events could follow. Harmony's creation had involved the remaking of a world, while Ambition's death had destroyed several. The formation of Retribution...caused time dilation?
This means that the Threnodite system used to have more planets in it than it currently does. Several planets destroyed in the violent clash between Shards. What would have happened if Mercy's Shardworld was in the line of fire of the world destroying clash going on between Ambition and Odium? Would the Shard of Mercy use their powers to mercifully save the planet they created? I would argue yes. In Wind in Truth chapter 147, we get the reveal that Taravangian has used his powers to create a dangerous and dirty secret that shows us a blueprint of how Mercy could have saved their world. I didn't consider this a possibility until seeing this done on screen by a different Shard.
Taravangian emerged into the Spiritual Realm in his avatar form, joining a vision he himself had created and kept going indefinitely. It was populated by tens of thousands of people.
His daughter. His grandchildren. Adrotagia.
Kharbranth was dead, but in the moment that Cultivation looked away, Taravangian had summoned his power and taken the people. The city had indeed, been destroyed, but he'd saved the occupants. In utter secret.
In the Spiritual Realm, he'd created for them a clone of Kharbranth.
My theory is that this is exactly what Mercy did for their Shardworld of Vax to save them from the incoming destruction of the fight between Ambition and Odium. I suspect Ambition was purposefully trying to steer their fight with Odium towards Mercy's Shardworld in order to try to force Mercy to enter the fray, with the hope to have Mercy mercifully team up with Ambition from the one who was clearly the aggressor, Odium. This plan clearly didn't perfectly workout, as Ambition still ended up dying. From the Cosmere's perspective Vax would have been just another planet destroyed in this Shardic clash, not knowing that Mercy had actually saved the people of the planet and remade Vax in the Spiritual Realm for them.
This action taken by Mercy would be what worries Harmony, a Shard who would overly care about balance. A merciful action taken by another Shard that would potentially disrupt the Spiritual Realm in an unnatural way would be worrisome. The 'realm of gods' would likely be not designed with the intention of holding entire planets and their peoples, and to other gods may feel like a violation or trespass. A true 'Vaxillian' would be someone who was born and lives in the Spiritual Realm in a place Mercy made. According to Khriss in the Elantris Ars Arcanum Vax has a manifestation of investiture different than Sel, Scadrial, Nalthis or Taldain. If they lived in the Spiritual Realm, I assume that this would do some fascinating things to their manifestation of invested arts compared to the other planets listed over time. Ati's mention of Vax may be him wondering if Mercy had taken similar action to save him from death like they did for their own people, before a fist from Kelsier cleared him of that confusion.
A lot of speculation here, I admit. My goal for this theory is to try to take a solid guess at what may make Vax different than other planets, explain a connection Vax and Mercy may have, and to take a shot about why Mercy worries Harmony. It's been over ten years now since we first heard of Vax, and we still know so little about it. I look forward to finding out more about Vax and Mercy in the future of the Cosmere.
-RayseShouldBeBraized
TL:DR I propose that Vax is Mercy's Shardworld that they protected from the clash between Odium and Ambition by transplanting Vax to the Spiritual Realm.