Underground Island enters the battlefield tapped unless you pay 1 life.
: Add or to your mana pool.
Sacrifice Underground Island: Add or to your mana pool.
: Underground Island becomes a 2/2 blue Fish creature until end of turn. It's still a land.
: Add 
or 
to your mana pool. or to your mana pool.
: Underground Island becomes a 2/2 blue Fish creature until end of turn. It's still a land.
