(: Add or to your mana pool.)
Whenever Tranquil Bridge becomes tapped, it deals 1 damage to you.
, , Sacrifice Tranquil Bridge: Prevent all combat damage that would be dealt this turn.
, , Sacrifice Tranquil Bridge: Destroy target artifact.
: Add 
or 
to your mana pool.), , Sacrifice Tranquil Bridge: Prevent all combat damage that would be dealt this turn., , Sacrifice Tranquil Bridge: Destroy target artifact.
