Inflict Critical Wounds

Necromancy

Level: Acolyte 4; Components: V, S; Casting Time; Attack action Range: Touch; Target: Creature touched; Duration: Instantaneous; Saving Throw: Will half; Spell Resistance: Yes

The caster lays his or her hand upon a creature and channels negative energy that deals 4d8 points of damage +1 point per caster level (maximum +10).

Since undead are powered by negative energy, this spell cures them of a like amount of damage rather than harming them.