Orzhov Keyrune is a uncommon Artifact card from Gatecrash (GTC), collector number 233. Current market price: $0.17 (foil $0.63), TCGplayer market prices via Scryfall.
{T}: Add {W} or {B}. {W}{B}: This artifact becomes a 1/4 white and black Thrull artifact creature with lifelink until end of turn.