(: Add or to your mana pool.)
Deathly Flats enters the battlefield tapped.
, , Sacrifice Deathly Flats: Put a -1/-1 counter on target creature.
, : You gain 1 life.
: Add 
or 
to your mana pool.), , Sacrifice Deathly Flats: Put a -1/-1 counter on target creature.
, : You gain 1 life.
