(: Add or to your mana pool.)
Hollow Marsh enters the battlefield tapped unless you pay .
, , Sacrifice Hollow Marsh: Put a -1/-1 counter on target creature.
, , Sacrifice Hollow Marsh: Return target creature you control to its owner's hand.
: Add 
or 
to your mana pool.)
., , Sacrifice Hollow Marsh: Put a -1/-1 counter on target creature., , Sacrifice Hollow Marsh: Return target creature you control to its owner's hand.
