(: Add or to your mana pool.)
Calciform Underground enters the battlefield tapped.
, , Sacrifice Calciform Underground: Prevent all combat damage that would be dealt this turn.
, : Target player loses 1 life.
: Add 
or 
to your mana pool.), , Sacrifice Calciform Underground: Prevent all combat damage that would be dealt this turn.
, : Target player loses 1 life.
