Bartz and Boko is a rare Legendary Creature — Human Bird card from Final Fantasy (FIN), collector number 469. Current market price: $3.10 (foil $13.37), TCGplayer market prices via Scryfall.
Affinity for Birds (This spell costs {1} less to cast for each Bird you control.) When Bartz and Boko enters, each other Bird you control deals damage equal to its power to target creature an opponent controls.