Crimson Grasp

You generate a surge of twisted energy around your hands.  Make a melee spell attack against a creature within range.  On a hit, the target takes 1d8 necrotic damage and you regain hit points equal to half the damage dealt. This spell’s damage increases by 1d8 when you reach 5th level (2d8), 11th level (3d8), and 17th level (4d8).