Green Flats enters the battlefield tapped unless you pay .
: Add or to your mana pool.
Put Green Flats on top of your library: Add to your mana pool.
: Green Flats becomes a 2/2 green Squirrel creature until end of turn. It's still a land.
.
: Add or 
to your mana pool.
to your mana pool. : Green Flats becomes a 2/2 green Squirrel creature until end of turn. It's still a land.
