Field of Ruin is a uncommon Land card from March of the Machine Commander (MOC), collector number 400. Current market price: $0.37, TCGplayer market prices via Scryfall.
{T}: Add {C}. {2}, {T}, Sacrifice this land: Destroy target nonbasic land an opponent controls. Each player searches their library for a basic land card, puts it onto the battlefield, then shuffles.