Wand of Soul Drain
The Wand of Soul Drain has 4 charges. As a bonus action, an enemy within 60 feet takes 1d4 necrotic damage as a green ray lashes out at them, and you gain the same amount of temporary hit points.
The wand regains 1d4-1 expended charges after a long rest. If all charges are used up, the wand has a 25% chance of becoming non-magical.