(: Add or to your mana pool.)

When Rugged Pools enters the battlefield, you lose 1 life unless you reveal a nonbasic land card from your hand.

, : Target land becomes a 3/3 red Goblin creature until end of turn. It's still a land.

, : Target land becomes a 3/3 blue Shapeshifter Cephalid creature until end of turn. It's still a land.