When Overgrown Tar Pit enters the battlefield, sacrifice it unless you pay 1 life.

: Add  to your mana pool. Activate this ability only if you control a Forest.

: Add  to your mana pool. Activate this ability only if you control a Swamp.

Morph (You may cast this face down as a 2/2 creature for . Turn it face up any time for its morph cost.)