Elven Pool enters the battlefield tapped.
: Add to your mana pool. Return Elven Pool to its owner's hand.
: Elven Pool becomes a 2/2 black and green Stag creature with trample until end of turn. It's still a land.
: Add 
to your mana pool. Return Elven Pool to its owner's hand.
: Elven Pool becomes a 2/2 black and green Stag creature with trample until end of turn. It's still a land.
