Drain

You point at a creature within range and attempt to magically siphon its life force. The target must make a Constitution saving throw against your Spell Save DC, and on a failure it takes 1d6 necrotic damage and you regain a number of hit points equal to half that amount rounded up. This spell has no effect on undead or constructs.

This spell's damage increases by 1d6 when you reach 5th level (2d6), 11th level (3d6), and 17th level (4d6).