Bartered Cow is a common Creature — Ox card from Throne of Eldraine (ELD), collector number 6. Current market price: $0.09 (foil $0.34), TCGplayer market prices via Scryfall.
When this creature dies and when you discard this card, create a Food token. (It's an artifact with "{2}, {T}, Sacrifice this token: You gain 3 life.")