Phantom Steed is a rare Creature — Horse Illusion card from Forgotten Realms Commander (AFC), collector number 287. Current market price: $0.73, TCGplayer market prices via Scryfall.
Flash When this creature enters, exile another target creature you control until this creature leaves the battlefield. Whenever this creature attacks, create a tapped and attacking token that's a copy of the exiled card, except it's an Illusion in addition to its other types. Sacrifice that token at end of combat.