Also, Viola's CE is godlike. Easily one of the best in the game. Free setups, works in combos, free round enders, and absurd damage if you guess right on the mixup. Even if you guess wrong it still leaves you at advantage.
EDIT: Just realized Leixia's is i12 also, and the same damage as Raph's. The difference here is that she can land it off more moves as well as using it as a punish. That gives me an idea. What if 2B+K was +12 on block instead of +11? I know 2B+K isn't that spectacular of a move but it could help when the opponent freezes up.