(: Add or to your mana pool.)
When Mystic Pool enters the battlefield, return a land you control to its owner's hand.
: Mystic Pool becomes a 1/1 blue and black Shapeshifter creature with flying until end of turn. It's still a land.
: Add 
or 
to your mana pool.)
: Mystic Pool becomes a 1/1 blue and black Shapeshifter creature with flying until end of turn. It's still a land.
