(: Add or to your mana pool.)
When Hallowed Cavern enters the battlefield, sacrifice it unless you pay .
, : Target creature gains vigilance until end of turn.
, , Sacrifice Hallowed Cavern: Put a -1/-1 counter on target creature.
: Add 
or 
to your mana pool.).
, : Target creature gains vigilance until end of turn., , Sacrifice Hallowed Cavern: Put a -1/-1 counter on target creature.
