Heal enables you to channel positive energy into creatures to wipe away injury and afflictions. It immediately ends any and all of the following adverse conditions affecting the targets: ability damage, blinded, confused, dazed, dazzled, deafened, diseased, exhausted, fatigued, feebleminded, insanity, nauseated, poisoned, sickened, and stunned. It also cures 10 hit points of damage per level of the caster, to a maximum of 250 points.

Heal does not remove negative levels or restore permanently drained ability score points.

If used against undead creatures, heal instead deals 10 points of damage per caster level (to a maximum of 250 points). If the creatures successfully save, heal deals half this amount. Heal cannot reduce a target's hit points to less than 1.