When Tranquil Hollows enters the battlefield, sacrifice it unless you pay 1 life.
: Add to your mana pool. If you played a land this turn, Add to your mana pool instead.
: Return Tranquil Hollows to its owner's hand.
: Add 
to your mana pool. If you played a land this turn, Add 
to your mana pool instead.: Return Tranquil Hollows to its owner's hand.
