Aura of Hunger

The awful hunger of the unquiet dead radiates from you in an aura with a 30-foot radius. Until the spell ends, the aura moves with you, centered on you. Each hostile creature in the aura takes an additional 2d6 necrotic damage when it suffers damage from any spell you cast, or when it suffers damage from any necrotic source. A creature cannot suffer this extra damage more than once per round.