Taldaline's Unmend

You point at one creature you can see within range, and old wounds and injuries begun to reopen on the target. The target must succeed on a Wisdom saving throw. They take 3d8 necrotic damage on a failed save, or half as much damage on a successful one. If the target regained health in anyway since the end of your last turn, it instead takes 3d12 necrotic damage on a failed save, or half as much damage on a successful one.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the damage increases by 1d8 or 1d12 for each slot level above 1st.