Seachrome Catacomb enters the battlefield tapped unless you pay 1 life.

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

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

: Seachrome Catacomb becomes a 2/1 blue and black Cephalid creature until end of turn. It's still a land.