Treetop Lake enters the battlefield tapped unless you reveal a basic land card from your hand.
: Add or to your mana pool.
: Add to your mana pool. Put Treetop Lake on top of your library.
Sacrifice a Green permanent: You gain 3 life.
: Add 
or 
to your mana pool.: Add 
to your mana pool. Put Treetop Lake on top of your library.
