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

: Add  to your mana pool. Activate this ability only if you control a Plains.

: Add  to your mana pool. Activate this ability only if you control a Mountain.

: Calciform Crag becomes a 1/1 red and white Soldier creature with first strike until end of turn. It's still a land.