I have a new idea for a character, just because I didn't think I could really do much with Prodigy or the others.
Blizzard is a teenage boy with exceptional physical abilities, who also happens to emit an aura of extreme cold. He cannot turn this aura off, and it freezes anything Blizzard touches. He has learned to extend this freeze a bit, creating bolts of ice that he fires at targets. Blizzard can also freeze someone in place by crystalizing air moisture around them.
I figure he was a very talented athlete before his powers really kicked in, and has tried to deal with the psychological trauma that comes from a sudden realization that he's different from his friends and relatives. Since Blizzard comes from a social level and culture that prizes sameness and the follower mentality, he is now something wholly untenable - different.
I like this character, and I think I'm going to run with Blizzard. I have done most of the game mechanics stuff on him, so let me know if you want that material, DH.