Bells of Death

You curse a creature you can see within range with a brief manifestation of deathly resonance. The target must make a Wisdom saving throw, taking 1d8 necrotic damage on a failed save. If the target is not at full hit points, the damage dealt is 1d12 necrotic damage instead.

The spell's damage increased by one die when you reach 5th, 11th, 17th.