Harvest Wounds

Make a melee spell attack against a creature you can reach. On a hit, the target takes 1d8+ your spellasting ability modifier as necrotic damage. After calculating damage for this attack, another target creature within 30 feet of you regains hit points equal to half of the damage that was dealt. This spell has no effect on undead or constructs.

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