To add to the discussion on psychics recreating bodies for themselves or repairing bodies.
Jean: Originally, Jean reached her full potential, became a being of psionic energy, recreated her body, and became Jean/Phoenix. The retconned version states that Phoenix/Jean duplicated Jean's body.
Charles: Possessed Fantomex's body to come back to life as X, changing Fantomex's body to look like a younger version of his original self.
Madelyne Pryor: Repaired Sebastian Shaw's face when he had a scar in the X-man series. She also repaired Chimera's gut wound in Uncanny X-men.
Nate Grey: Reconstituted himself back into corporeal form after splitting his essence into all beings on Earth.
And then of course what was listed earlier with Shadow King and Rachel.