(: Add or to your mana pool.)
Growth Cavern enters the battlefield tapped.
, , Sacrifice Growth Cavern: Destroy target artifact.
, , Sacrifice Growth Cavern: Put a -1/-1 counter on target creature.
: Add 
or 
to your mana pool.), , Sacrifice Growth Cavern: Destroy target artifact., , Sacrifice Growth Cavern: Put a -1/-1 counter on target creature.
