(: Add or to your mana pool.)
Tranquil Lake enters the battlefield tapped.
, , Sacrifice Tranquil Lake: Prevent all combat damage that would be dealt this turn.
, : Scry 2.
: Add 
or 
to your mana pool.), , Sacrifice Tranquil Lake: Prevent all combat damage that would be dealt this turn.
, : Scry 2.
