(: Add or to your mana pool.)
Skeletal Ground enters the battlefield tapped unless you control five or more artifacts.
, , Sacrifice Skeletal Ground: Put a -1/-1 counter on target creature.
, : Put a +1/+1 counter on target creature.
: Add 
or 
to your mana pool.), , Sacrifice Skeletal Ground: Put a -1/-1 counter on target creature.
, : Put a +1/+1 counter on target creature.
