(: Add or to your mana pool.)
Boiler-Pools enters the battlefield tapped.
: Boiler-Pools becomes a 2/1 red and blue Elemental creature until end of turn. It's still a land.
: Add 
or 
to your mana pool.): Boiler-Pools becomes a 2/1 red and blue Elemental creature until end of turn. It's still a land.
