Inflict Light Wounds

Necromancy

Level: Clr 1, Destruction 1
Components: V, S
Casting Time: 1 standard action
Range: Touch
Target: Creature touched
Duration: Instantaneous
Saving Throw: Will half
Spell Resistance: Yes

When laying your hand upon a creature, you channel negative energy that deals 1d8 points of damage +1 point per caster level (maximum +5).

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