Fortune, Loyal Steed is a rare Legendary Creature — Beast Mount card from Secret Lair Drop (SLD), collector number 2790. Current market price: $7.20 (foil $3.63), TCGplayer market prices via Scryfall.
When Fortune enters, scry 2. Whenever Fortune attacks while saddled, at end of combat, exile it and up to one creature that saddled it this turn, then return those cards to the battlefield under their owner's control. Saddle 1