Possessed by the Phoenix Force, Grey controls matter on a molecular level, allowing him to manipulate atomic structures. He can generate and absorb any form of energy in seemingly unlimited scale and turn his form into pure energy at will. He can live in any environment without harm and travel through space at near light speed. He can open time/space warps to travel into other dimensions or realities. The Phoenix Force can manifest itself around him as an enormous bird of cosmic flame when Grey uses his powers extensively.