Levy of Damnation is a 15th level cleric Daily power that was introduced in Heroes of the Fallen Lands.
Levy of Damnation
Cleric Attack 15
Your divine power exacts a heavy toll from your foe, who suffers the worst from you and your allies' attacks.
Melee weapon
Target: One creature
Attack: Wisdom vs. Reflex
Hit: 3[W] + Wisdom modifier radiant damage.
Miss: Half damage.
Effect: Until the end of the encounter, whenever you or any ally makes a damage roll against the target, you or the ally rolls twice and uses either result.