Blood Manipulation

You attempt to force blood in a creatures body to flow and heal the creature you touch. The target must succeed on a Constitution Saving Throw or take 4d8 necrotic damage. If the creature is successful on the Saving Throw they instead Regain 4D8 HP.

If the target is the caster, they can choose to succeed on the Saving Throw.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the damage and healing increases by 1d8 for each slot level above 3rd.