Wave of Iniquitous

A wave of death sweeps out from you. Each creature in a 15-foot cone must make a Constitution saving throw. A creature takes 1d6 necrotic damage on a failed save, or half as much damage on a successful one. For each creature that takes necrotic damage you recover 1 hit point. Friendly undead creatures in the area of effect do not take damage but instead recover 1d6 hit points, and you receive 1 temporary hit point for each undead creature healed. These temporary hit points last until the end of your next turn.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the damage or healing increases by 1d6 for each slot level above 1st.