Ruins of Oran-Rief is a rare Land card from Modern Horizons 3 Commander (M3C), collector number 370. Current market price: $0.32, TCGplayer market prices via Scryfall.
This land enters tapped. {T}: Add {C}. ({C} represents colorless mana.) {T}: Put a +1/+1 counter on target colorless creature that entered this turn.