(: Add or to your mana pool.)
Mire Hollows enters the battlefield tapped unless you sacrifice an artifact land.
, , Sacrifice Mire Hollows: Put a -1/-1 counter on target creature.
, : You gain 1 life.
: Add 
or 
to your mana pool.), , Sacrifice Mire Hollows: Put a -1/-1 counter on target creature.
, : You gain 1 life.
