When Goblin Shelter enters the battlefield, you lose 1 life unless you reveal a Cephalid card from your hand.

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

: Add  to your mana pool. Activate this ability only if you control an Island.

: Goblin Shelter becomes a 1/1 blue and red Elemental creature with first strike until end of turn. It's still a land.