hm..... then it would be balanced for the others but no so much for your character so it would be unbalanced when it comes to your character.

A lot of the time when there is something that involves player character vs player character I try to help balance things so one side wont have an fairly big advantage, which they would once he used what his talent, causing him to most likely get quickly beaten.

hm... if you want him to be a type of counter guy like your making him seem like, sense he can counter their spells by manipulating it, you could just have his talent to be in countering magics. which there is a few types of that, which I guess would involve the manipulation but not as a primary thing.

just suggestions.