Catch of the Day is a rare Creature — Serpent card from Mystery Booster 2 (MB2), collector number 528. Current market price: $0.19, TCGplayer market prices via Scryfall.
As Catch of the Day enters the battlefield, choose one for each of the following. Keyword → Vigilance; ward {3}; or islandwalk. Whenever this creature attacks → Scry 2; goad target creature an opponent controls; or tap target creature an opponent controls. Size → 6/2; 4/4; or 2/6.