Vampiric Hex

Make a ranged spell attack against a creature. On a hit the target takes 1d10 necrotic damage and you regain hit points equal to the damage dealt. At the start of each of the creature's turns it can make a Wisdom saving throw. On a success the spell ends.

When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d10 for each slot level above 3rd.