Blighttown

{t}Add {b} to your mana pool
{t}{5}{b} Player of your choice receives 2 poison counters. Blighttown does not untap
during controller's next untap step.
As its name suggests, Blighttown is a place of great pestilence. Even the polluted inhabitants of the Depths
are aware of its dangers, and built a mighty door in
hopes that they could remain safely separated.