Drain

You point at a creature you can see within 30ft, and their essence is drawn from them. They roll a CON saving throw. On a failed save, they take 5d10 necrotic damage, and you heal for half as much. On a successful save, they take half as much damage and you don't heal.

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, the damage increases by 1d10 for each slot level above 5th.