When Deathly Plain enters the battlefield, sacrifice it unless you pay 2 life.
, : Add to your mana pool.
: Deathly Plain becomes a 2/2 black Skeleton Specter creature until end of turn. It's still a land.
, 
: Add 
to your mana pool., : Add to your mana pool.
: Deathly Plain becomes a 2/2 black Skeleton Specter creature until end of turn. It's still a land.
