(: Add or to your mana pool.)
Elven Cavern enters the battlefield tapped.
, : Target green creature gets +2/+2 until end of turn.
, , Sacrifice Elven Cavern: Put a -1/-1 counter on target creature.
: Add 
or 
to your mana pool.)
, : Target green creature gets +2/+2 until end of turn., , Sacrifice Elven Cavern: Put a -1/-1 counter on target creature.
