(: Add or to your mana pool.)
Tranquil Key enters the battlefield tapped.
, , Sacrifice Tranquil Key: Prevent all combat damage that would be dealt this turn.
, , Sacrifice Tranquil Key: Return target creature you control to its owner's hand.
: Add 
or 
to your mana pool.), , Sacrifice Tranquil Key: Prevent all combat damage that would be dealt this turn., , Sacrifice Tranquil Key: Return target creature you control to its owner's hand.
