Positive Energy Aura(Spell Compendium, p. 161)
Level: Cleric 4,
Components: V, S,
Casting Time: 1 standard action
Area: 10-ft.-radius emanation centered on you
Duration: 1 round/level
Saving Throw: None
Spell Resistance: No
You speak the eldritch phrases of power and an aura of white, shining, positive energy surrounds you.
Each round on your turn, every living creature within 10 feet of you gains 1 hit point per three caster levels (maximum 5). Creatures can't exceed their full normal hit point totals as a result of this effect. Undead creatures take 2 points of damage per round. Characters with immunity to positive energy effects are not affected by this aura. A positive energy aura does not affect you.