Board Thread:Speculation House/@comment-36446807-20180803045826/@comment-36446807-20180805011217

ChishioKunrin wrote: Why make the vaults unlockable?

In case he needs to use the Relics at some point. I have a theory that the sword the King of Vale used in the final battle of the Great War was actually the Relic of Destruction, considering... well... the destruction that he caused and the fact that it's an orange-and-yellow sword like Vacuo's symbol. This theory has more weight to it now that we've seen that the Relic of Knowledge is a lantern with bright blue on it just like Mistral's symbol.