Quote:On top of it, doesn't he not have full control of his powers due to having brain damage from falling out of the plane with Alex when his parents got kidnapped by the Sh'iar?
Joss Whedon retconned his lack of control over his powers into being a psychological rather than a physical issue, I believe. I'd given up on Whedon's X-Men before that story, though, so I can't say for sure.
The story went that if he used his powers, he would once again lose control. And during the final attack, he used his powers. So... back to square zero.