Jean Grey is a way overpowered Mutant ex-man who joined with an alien space symbiote taking the form of a phoenix-shaped fire demon feeding on her already OP mutant energy because she is a Higher Evolutionary Form. She has destroyed many in her reckless crazed Power Madness abandon. Despite being nuts, all the folks seem to have crushes on her at the same time, from Cyclops to Wolverine, and even her own teacher/principal/father figure, Charles Xavier. None of them really worked out. Her powers include telepathy, telekinesis, pyrokinesis, probably all the other kineses, and attracting creeps and drama.