Cure Light Wounds

conjuration (healing)

Level: bard 1, cleric 1, druid 1, paladin 1, ranger 2
Casting Time: 1 standard action
Components: V, S
Range: touch
Target: creature touched
Duration: instantaneous
Saving Throw: Will half (harmless); see text
Spell Resistance: yes (harmless); see text

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

Since undead are powered by negative energy, this spell deals damage to them instead of curing their wounds. An undead creature can apply spell resistance, and can attempt a Will save to take half damage.