Tidus, Blitzball Star is a uncommon Legendary Creature — Human Warrior card from Final Fantasy (FIN), collector number 512. Current market price: $1.58 (foil $19.60), TCGplayer market prices via Scryfall.
Whenever an artifact you control enters, put a +1/+1 counter on Tidus. Whenever Tidus attacks, tap target creature an opponent controls.