The character starts off with the power of "if it looks like I'm not going to win, I get a power boost to make sure I win"...which they exploit by trying to make things seem more challenging, she gets a permanent power boost whenever she wins at anything...which naturally, is a huge part of the character's personality, on top of this, she has apparently NEVER lost at anything, meaning she's presumably starting off ridiculously powerful...and will just keep getting stronger, she's on her way to becoming a demigod, which...no. And the summon...Why the hell would I let something with the power to just declare "I win" in? If I'm banning powers for being too much of an instant win, it should go without saying that I'm not going to let the power to instantly win in.

@Psyga: Accepted.