Positive BlastSource Psychic Anthology pg. 21
Element wood; Type simple blast (Sp); Level —; Burn 0
Blast Type energy; Damage positive energy
You blast your foe with positive energy. The positive energy damage from positive blast and its composites harms only undead and other creatures harmed by positive energy. It never heals creatures, even if they would be healed by positive energy, but it damages haunts and deals full damage to incorporeal undead.