Drain Life

You point your finger to a creature to siphon its life force. Make a ranged spell attack against the target. On a hit, the target takes 1d6 necrotic damage, and you regain hit points equal to half the amount of necrotic damage dealt. If the target is an undead or a construct, you regain no hit points instead. The spell's damage increases by 1d6 at 5th level (2d6), 11th level (3d6), and 17th level (4d6).