(: Add or to your mana pool.)
When Forge Bog enters the battlefield, sacrifice it unless you pay 2 life.
, , Sacrifice Forge Bog: Prevent all combat damage that would be dealt this turn.
, Sacrifice a Swamp: Add to your mana pool.
: Add 
or 
to your mana pool.), , Sacrifice Forge Bog: Prevent all combat damage that would be dealt this turn., Sacrifice a Swamp: Add to your mana pool.
