Blackcleave Cliffs [Scars of Mirrodin]

Set: Scars of Mirrodin Type: Land Rare Cost: Blackcleave Cliffs enters the battlefield tapped unless you control two or fewer other lands. {T}: Add {B} or {R}. Where the Oxidda Chain mingles with the Mephidross, oil-suffused metal crumbles away, leaving walls of blackened bones.