Kamber, the Plunderer is a rare Legendary Creature — Vampire Rogue card from Outlaws of Thunder Junction Commander (OTC), collector number 137. Current market price: $0.39, TCGplayer market prices via Scryfall.
Partner with Laurine, the Diversion (When this creature enters, target player may put Laurine into their hand from their library, then shuffle.) Lifelink Whenever a creature an opponent controls dies, you gain 1 life and create a Blood token. (It's an artifact with "{1}, {T}, Discard a card, Sacrifice this token: Draw a card.")