Shayol Ghul

{1},{t}: Add {b} to your mana pool for each Swamp
you control.
"It is located in the lifeless Blasted Lands, a place
which bore the brunt of the War of Power. Within the mountain is the Pit of Doom, accessible only by a
narrow stone passage where reality is wet clay to the
Dark One; teeth of stone may brush at an intruder's
head or close on him entirely, or rise to give honor to a
loyal servant of the Shadow."