They've clearly learned their lesson with Smash for's DLC, so no, I'm not. Much like the base game, the DLC's balancing - while not perfect - is very, very good. There's been a handful of very good fighters to come of it, such as Joker, but as is the case with the roster as a whole, nobody is so good as to be problematic nor so bad as to be downright unusable. It's extremely impressive for such a large roster and I don't think they'd ruin it right at the finish line. Smash for's balancing had its issues well before the witch came along.