Throne of Nagash

{3}: Return Throne of Nagash from your graveyard to the battlefield.
{t}: Add {w} or {b} to your mana pool.
{2}{w/b}, {t}: Create a 1/1 black Skeleton creature token with "This creature enters the battlefield with a hollow emblem attached to it." Activate this ability only if Throne of Nagash entered the battlefield from your graveyard.