Healing (In DnD) can be either divine or magical. Divine spells come as gifts from gods, while magical spells come from within the caster.
Healing your own army? Pah! If the fools were unskilled enough to get hurt, let them suffer for their weakness!
That\'s what an evil person would say. Sure, he could heal party members, but why should he? I mean, it\'s their fault for getting hurt in the first place, right?