Polaris! One of the most iconic Mutants yet to be designed.
My biggest worry right now would be the power level of Magnetic Bubble, especially in the end game. Now, adding "if it is not the last figure in that player's army" to the power would limit that, even if it is a little clunky. The idea with the power is that she can either use it to keep one of her allies safe, at the (temporary) cost of their powers, or she can temporarily take an opponent's key figure out of the game, but making them almost impossible to wound.
Another question is on Class. Outcast fits her well, I think, but Starjammer would also fit.
There's also the mini. There are two: the
newer one that I have listed in the OP, and the more available but ugly
older one.
Comic art options: