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