(: Add or to your mana pool.)
Caves Knoll enters the battlefield tapped unless you sacrifice a creature.
, , Sacrifice Caves Knoll: Put a -1/-1 counter on target creature.
: Put a 1/1 red Beast creature token onto the battlefield.
: Add 
or 
to your mana pool.), , Sacrifice Caves Knoll: Put a -1/-1 counter on target creature.: Put a 1/1 red Beast creature token onto the battlefield.
