We don't really know. I originally thought he'd have gotten it in the explosion, and somehow blocked it from healing. But then he had it in Volume 3 as well. I think it's just one of those things which keep happening repeatedly in different futures.
Because when he injects him self with the power giving ablity then that only allows him to take one power at a time so he could have got cut yet have a different ability at the time
posted over a year ago
He had the scar in 2 timelines when he'd never have lost his Empathic Mimicry or Regeneration.
