If we had a four way Incursion event between these four world's, which one of them would the victor?
Well it's not Mutant X.
Originally I was going to say "The one with the universe-level reality-warping witch. Then I thought "Actually, no. It'll be the one with the psychic prodigy teen who could control said reality-warping witch to destroy everyone else, then wipe her brain."
And then I realised it was the one with the time-stopping mutant, the reality-warping walking-psych-unit with a psychotic personality in charge and the avian cosmic force of fiery destruction.
Yeah, that one. That one does it. Age of X.
Take out Phoenix, HoM Wanda and AoX Legion and you're mostly left with Nate Grey ripping through most people here. OK, so it's not Shaman Nate, but he's still pretty bloody potent.