@Meanlucario
I mean, yeah? If that was something that happens in story, then why shouldn’t I? Edelgard as Flame Emperor is pretty in line with her characterization.
Again, would you not count Black Knight and Zelgius (when one is a clone of Darth Vader, and the other is a honorable general)? It’s not like with, say, Fallen Robin or Fallen Lyon, where someone else is explicitly in control of the body.