Call the Hungry Ghosts is a 25th level cleric Daily power that was introduced in Heroes of Shadow.
Call the Hungry Ghosts
Cleric Attack 25
A shroud of wraithlike shadow coalesces around your enemies, draining their strength and channeling it through you.
Close blast 5
Target: Each enemy in the blast
Attack: Wisdom vs. Will
Hit: 5d8 + Wisdom modifier necrotic damage.
Miss: half damage.
Effect: The blast creates a zone that lasts until the end of your next turn. When any enemy ends its turn in the zone, that enemy is weakened until the end of its next turn, and you and each ally in the zone gain 5 temporary hit points.
Sustain minor: The zone persists until the end of your next turn.