Help Harmful

This spell group is the opposite of healing.  The harmful spells
are designed to tear flesh from bone, rupture arteries, and generally
turn the body against itself.  Only priests and warriors may use
this spell group.  In order of power, the harmful spells are:

cause light     inflicts minor wounds on an enemy
cause serious   inflicts wounds on a foe
cause critical  causes major damage to the target
harm            the most deadly harmful spell