Fey Steed is a rare Creature — Elk card from Forgotten Realms Commander (AFC), collector number 5. Current market price: $0.35, TCGplayer market prices via Scryfall.
Whenever this creature attacks, another target attacking creature you control gains indestructible until end of turn. Whenever a creature or planeswalker you control becomes the target of a spell or ability an opponent controls, you may draw a card.