Deathknell

You ring a small illusion of a bell in your hands, and the sound of church bells fills the air around the enemy with the fewest HP within range for a moment. The target must succeed on a Wisdom saving throw or take 1d8 necrotic damage. If the target dies you or one of your nearby conscious allies heal for the amount of damage done.

The spell’s damage increases by one die when you reach 5th level 2d8, 11th level 3d8, and 17th level 4d8.

The spell's healing is doubled at 11th level.