Vampiric Bolt

Your hand darkens and produces bolts of necrotic energy can siphon life force from others to heal your wounds. Make a ranged spell attack against a creature within 60 ft. On a hit, the target takes 3d8 necrotic damage, and you regain hit points equal to half the amount of necrotic damage dealt. Until the spell ends, you can make the attack again on each of your turns as an action.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the damage increases by 1d8 for each slot level above 4th.