Bruse Tarl, Roving Rancher is a rare Legendary Creature — Human Warrior card from Outlaws of Thunder Junction (OTJ), collector number 350. Current market price: $0.25 (foil $0.38), TCGplayer market prices via Scryfall.
Oxen you control have double strike. Whenever Bruse Tarl enters or attacks, exile the top card of your library. If it's a land card, create a 2/2 white Ox creature token. Otherwise, you may cast it until the end of your next turn.