Burdened Aerialist is a common Creature — Human Pirate card from Modern Horizons 2 (MH2), collector number 38. Current market price: $0.19 (foil $0.26), TCGplayer market prices via Scryfall.
When this creature enters, create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.") Whenever you sacrifice a token, this creature gains flying until end of turn.