Vampiric Wave

Your shadow-wreathed hand emits a wave of necrotic energy that can siphon life force from others to heal your wounds or transfer healing to another if touched and held for the duration of the spell. This wave attack emanates as dark energy in a 360-degree disc against any creature within your 10'. On a hit, the target/s takes 4d8 necrotic damage, and you regain hit points equal to the amount of necrotic damage dealt. Until the spell ends, you can make the attack again after a long rest.

At Higher Levels. When you cast this spell using a spell slot of 7th level or higher, the damage increases by 1d8 for each slot level above 6th.