Raven's Talon is a 7th level cleric Encounter power for the Death domain of the Warpriest. It was introduced in Heroes of Shadow.
Raven's Talon
Cleric Attack 7
Your hand becomes a spectral talon that tears through an enemy; its death shriek invigorating a nearby ally.
Melee 1
Target: One bloodied enemy
Effect: The target takes 5 + your Wisdom modifier necrotic damage. If this damage reduces the target to 0 hit points, you or one ally within 5 squares of you can spend a healing surge.