Breathless Knight is a common Creature — Spirit Knight card from Modern Horizons 2 (MH2), collector number 187. Current market price: $0.23 (foil $0.31), TCGplayer market prices via Scryfall.
Flying, lifelink Whenever this creature or another creature you control enters, if that creature entered from a graveyard or you cast it from a graveyard, put a +1/+1 counter on this creature.