Shadar Logoth

{t}: Exile a creature you control and put a storage counter on Shadar Logoth.
{t}: Add X to your mana pool where X equals the number of storage counters on Shadar Logoth.
Shadar Logoth was once Aridhol, a great city which destroyed itself during the Trolloc Wars by becoming
as dark and evil as the Shadow against which it
fought.