Rugged Chamber
Land-Island Mountain (Rare)

(Tap: Add U or R to your mana pool.)

When Rugged Chamber enters the battlefield, return a land you control to its owner's hand.

RR: Put a 1/1 red Shaman creature token onto the battlefield.

2U, Tap: Put a 1/1 blue Cephalid Crab creature token with flying onto the battlefield.

Greg Sweet