(: Add or to your mana pool.)
Murmuring Karst enters the battlefield tapped.
: Murmuring Karst becomes a 2/1 black and green Specter creature until end of turn. It's still a land.
: Add 
or 
to your mana pool.): Murmuring Karst becomes a 2/1 black and green Specter creature until end of turn. It's still a land.
