Lesser Siphoning

Level: Cantrip
School: Necromancy (Cruoromancy)
Casting Time: 1 action
Range: 30 feet
Components: S, V
Duration: Instantaneous
You attempt to siphon some of the life out of a target within range. The target must make a Constitution saving throw or take 1d6 necrotic damage. You heal for half the necrotic damage dealt by this cantrip.
At Higher Levels. This spell's damage increases by 1d6 when you reach 5th level (2d6), 11th level (3d6), and 17th level (4d6).