Dark Eboreus

You raise your hand or weapon into the air and chant; "Blasphemy incarnate! Dark Eboreus!" You siphon the life force from others to heal your wounds with a shadowy mist. Your target must make a constitution saving throw. If they fail the target takes 3d10 necrotic damage, and you regain hit points equal to half the amount of necrotic damage dealt. If they succeed, they only take 1d10 necrotic damage and you regain nothing.

Any fiends or aberrations you defeat with this spell will have their form either absorbed into yourself or your weapon based on the DM's discretion. It is up to you and your DM to determine what effect this would have on your character.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d10 for each slot level above 2nd.