Vampiric Aura

Life-draining energy radiates from you in an aura with a 60-foot radius. Until the spell ends, the aura moves with you, centered on you. You can use a bonus action to make a ranged spell attack against creatures within the aura. On a hit, the target takes 6d6 necrotic damage, and you regain hit points equal to half the amount of necrotic damage dealt.