Magic 2012

({T}: Add {U}.)

Rootbound Crag enters the battlefield tapped unless you control a Mountain or a Forest. {T}: Add {R} or {G}.

({T}: Add {R}.)

({T}: Add {B}.)

({T}: Add {U}.)

Dragonskull Summit enters the battlefield tapped unless you control a Swamp or a Mountain. {T}: Add {B} or {R}.

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {G}.)

({T}: Add {U}.)

({T}: Add {B}.)

({T}: Add {U}.)

({T}: Add {W}.)

({T}: Add {W}.)

Rootbound Crag enters the battlefield tapped unless you control a Mountain or a Forest. {T}: Add {R} or {G}.

({T}: Add {B}.)

({T}: Add {W}.)

({T}: Add {R}.)

({T}: Add {B}.)

({T}: Add {W}.)

Drowned Catacomb enters the battlefield tapped unless you control an Island or a Swamp. {T}: Add {U} or {B}.

({T}: Add {U}.)