Kain, Traitorous Dragoon is a rare Legendary Creature — Human Knight card from Final Fantasy (FIN), collector number 316. Current market price: $2.42 (foil $4.87), TCGplayer market prices via Scryfall.
Jump — During your turn, Kain has flying. Whenever Kain deals combat damage to a player, that player gains control of Kain. If they do, you draw that many cards, create that many tapped Treasure tokens, then lose that much life.