User blog comment:Dragonofelder/X-Avengers/@comment-4287803-20130801095403/@comment-5940646-20130801101339

I actually had cool ideas about Hulk and Thor. Bruce's original mutant power was that he could transform into a smaller grey hulk like being, but after the gamma bomb incident, in that form he is insane, but the form is a lot stronger as well. He also lost control over when he transforms, so when he gets angry.

Thor, I thought could have the powers you said, but can't control his storm powers very well. So he asked Tony Stark, because Tony is publicly a mutant, for help so he made him a Hammer that he can use to direct the power.