(: Add or to your mana pool.)
Underground Ruins enters the battlefield tapped unless you pay .
, , Sacrifice Underground Ruins: Put a -1/-1 counter on target creature.
, : Regenerate target Squirrel.
: Add 
or 
to your mana pool.)
., , Sacrifice Underground Ruins: Put a -1/-1 counter on target creature., : Regenerate target Squirrel.
