The Twilight Schemer
Indeed. Just a couple corrections, though.
Xemnas has Nothingness.
Zexion has Illusion.
Otherwise you were correct. :3
Like I said, Xemnas and Zexion are my opinion. I disagree with the masses on what their elements are. Xemnas is just fitting, you know? Sora's is Light-elemented, and you're gonna tell me that Xehanort, who is obsessed with darkness, who was so steeped in darkness that he produced the only talking Heartless ever to have existed, would have Nothingness?! I don't think so. After all, Xemnas teleports in battle by cloaking himself in darkness, and his ultimate attack as Zippin' Xemnas creates total darkness. Unless Nomura has come out and said it and I'm not aware of it, I'm sticking with Darkness as his element.
Zex is a bit harder to prove. If it wasn't for his AS, I might agree with Illusions, or possibly mimicry. But it takes you to a world of Nothingness inside his book...Also, the real Zex. That Soul Eater he cuts you up with is no illusion. By himself, he has nearly nothing going for him, really weak attacks. He has nothing, if you will. By leeching the abilities out of other people, he can fill the void, so to speak. He can fill Nothing with Something. Therefore, I think Zexion's element is Nothingness.
Once again, I know what the mainstream says their elements are, but unless Nomura says otherwise, I respectfully disagree.