Battlefield Oasis enters the battlefield tapped unless you pay .
, : Add to your mana pool.
: Battlefield Oasis becomes a 2/2 red and green Elemental creature with trample until end of turn. It's still a land.
.
, 
: Add 
to your mana pool., : Add to your mana pool.
: Battlefield Oasis becomes a 2/2 red and green Elemental creature with trample until end of turn. It's still a land.
