(: Add or to your mana pool.)
When Treetop Knoll enters the battlefield, return a land you control to its owner's hand.
: Treetop Knoll becomes a 1/1 red and green Snake creature with first strike until end of turn. It's still a land.
: Add 
or 
to your mana pool.)
: Treetop Knoll becomes a 1/1 red and green Snake creature with first strike until end of turn. It's still a land.
