X-Man is one of the most powerful mutants to exist and one of the most powerful beings in the Universe. One of the many impressive moments that displayed Nate's powers was when he easily defeated Exodus, a mutant with vast psionic powers who managed to defeat the combined efforts of the X-Men and the Avengers in combat. This easy defeat left Exodus humiliated especially considering he was centuries old while Nate was only around 16 years old (he confirmed himself to be physically 17. He had psionic powers beyond those of any other mutant in the world, and was easily among the most powerful mutants in general. As he grew, he possessed enough power that
he could destroy entire worlds if he wished. His power is such that upon examination by Moira MacTaggert, she suggested his psionic powers rivaled that of a Phoenix Force-imbued Jean Grey even at such a young age. In another instance,
he was measured as having a psionic energy output matching that of the Dark Phoenix itself and since that moment his powers and control have grown much.
Nate has a Grey Genome, that according to the Shi'ar makes him a possible Phoenix Avatar.
He is also strong enough like Phoenix, and he was once surrounded by an aura similar to Phoenix.
