(: Add or to your mana pool.)
Boiler-Oasis enters the battlefield tapped.
: Boiler-Oasis becomes a 2/2 red and green Goblin Troll creature with trample until end of turn. It's still a land.
: Add 
or 
to your mana pool.)
: Boiler-Oasis becomes a 2/2 red and green Goblin Troll creature with trample until end of turn. It's still a land.
