Scouring Pulse

You inundate the area with concentrated vitality energy, which scours away the stain of undeath. Each creature in the area takes 6d8 vitality damage and must attempt a basic Reflex save. Creatures that fail the save also take (1 if the item's level is at least 5, otherwise 2)d8 persistent vitality damage. Creatures that take persistent vitality damage from scouring pulse are wreathed in a heatless halo of light. They emit bright light in a 5-foot radius preventing them from being Concealed; if the creature is Invisible, they're concealed while affected by scouring pulse, rather than being undetected.