Blackcleave Cliffs [Scars of Mirrodin]

Set: Scars of Mirrodin Type: Land Rarity: Rare 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.