Tavern Scoundrel is a common Creature — Human Rogue card from Modern Horizons 2 (MH2), collector number 144. Current market price: $0.24 (foil $0.37), TCGplayer market prices via Scryfall.
Whenever you win a coin flip, create two Treasure tokens. (They're artifacts with "{T}, Sacrifice this token: Add one mana of any color.") {1}, {T}, Sacrifice another permanent: Flip a coin.