Corrupted Crossroads is a rare Land card from Modern Horizons 3 Commander (M3C), collector number 332. Current market price: $0.38, TCGplayer market prices via Scryfall.
{T}: Add {C}. ({C} represents colorless mana.) {T}, Pay 1 life: Add one mana of any color. Spend this mana only to cast a spell with devoid.