Death's Caress

Your gentle caress carries a necrotic energy that tugs at the living and soothes the dead. This spell can target either a living creature or an undead creature. 

• If you target a living creature, make a melee spell attack against the target. You have advantage on the attack roll if the target's hit points are below half of their hit point maximum. On a hit, the target takes 1d8 necrotic damage, and can't regain hit points until the spell ends.

• If you target an undead creature with at least 1 hit point, the creature gains temporary hit points equal to 1d4 + your spellcasting ability modifier. The temporariy hit points are lost when the spell ends.

This spell's damage and temporary hit points each increase by one die when you reach 5th level (2d8 or 2d4). 11th level (3d8 or 3d4). and 17th level(4d8 or 4d4).