Headbutt
From Activating Evolution
Headbutt is the presence of an exceptionally powerful head, usually a bit thicker than normal, or perhaps even protected by a psychic forcefield, which allows one to ram into foes or subjects as a mode of attack and defense. One with this ability could headbutt a foe so hard that he could knock the wind out of him and potentially kill him, or go through walls with no cranial damage. This ability is usually accompanied by Superhuman Endurance or Rampant Charge.

