Cinnamon, Seasoned Steed is a rare Legendary Artifact Creature — Food Horse card from Unknown Event (UNK), collector number RA01. Current market price: $80.00, TCGplayer market prices via Scryfall.
Other Food creatures you control have horsemanship. (They can't be blocked except by creatures with horsemanship.) At the beginning of your combat step, you may put a +1/+1 counter on target noncreature Food you control. If you do, it becomes a 0/0 Knight creature in addition to its other types. {2}, {T}, Sacrifice Cinnamon, Seasoned Steed: You gain 3 life.