Captain Lannery Storm is a rare Legendary Creature — Human Pirate card from Ixalan Promos (PXLN), collector number 136p. Current market price: $4.77 (foil $4.95), TCGplayer market prices via Scryfall.
Haste Whenever Captain Lannery Storm attacks, create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.") Whenever you sacrifice a Treasure, Captain Lannery Storm gets +1/+0 until end of turn.