User blog comment:Hidden Scorpius XI/My impressions on "The Great War" (WoR, V4-E8)/@comment-26397825-20170116001321/@comment-4010415-20170116090154

Yeah, basically, I think the sword Vale's king used was the Relic of Destruction, hence it being a special color (that actually kinda resembles Vacuo's different-shades-of-orange color scheme, so maybe the Relic that got stashed in Shade) and being used to decimate armies. Some people think the king of Vale also had the Relic of Choice, thus allowing him to more easily bend Mantle and Mistral to give up. If so, it may have been his scepter.

That leaves Knowledge and Creation. Given Mistral's culture being all about appreciating nature, the fact that the God of Light created nature, and the fact that Mantle/Atlas has always been the more advanced kingdom, I'd place Creation in Mistral's hands and Knowledge in Atlas'.