(: Add or to your mana pool.)
Razorverge Ruins enters the battlefield tapped.
, , Sacrifice Razorverge Ruins: Prevent all combat damage that would be dealt this turn.
, , Sacrifice Razorverge Ruins: Put a -1/-1 counter on target creature.
: Add 
or 
to your mana pool.), , Sacrifice Razorverge Ruins: Prevent all combat damage that would be dealt this turn., , Sacrifice Razorverge Ruins: Put a -1/-1 counter on target creature.
