Seafloor Tomb enters the battlefield tapped unless you reveal a Crab card from your hand.
: Add to your mana pool.
: Add or to your mana pool. Each opponent gains 1 life.
When Seafloor Tomb enters the battlefield, put a -1/-1 counter on target land.
: Add 
to your mana pool.: Add 
or 
to your mana pool. Each opponent gains 1 life.
