Simple Version: Has weak attack, but gets 4 attacks.
Complex Version: Has health easily divided by 4, lets just say 40 HP. For every 10 HP it has, it has an attack, so it can attack a maximum of 4 times, but gets weaker as you hurt it. This version should start out with a strong attack. Also, maybe healing it should not bring back extra attacks. (since I imagine it weird for a healer to regenerate a head....)
