Aura of Death

Dark, undead energy radiates from you in an aura with a 30-foot radius. Until the spell ends, the aura moves with you, centered on you. Whenever a hostile creature in the aura heals, it only receives half of the total health. All friendly creatures in the aura gain resistance to necrotic or radiant damage, choose when you cast the spell. In addition, friendly undead gain temporary hit points equal to your Charisma modifier on the start of their turns and have advantage against being turned.