Pitiless Plunderer is a uncommon Creature — Human Pirate card from Special Guests (SPG), collector number 5. Current market price: $25.72 (foil $35.92), TCGplayer market prices via Scryfall.
Whenever another creature you control dies, create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")