Sentinel of Shadow
Escape from Dol Guldur Nightmare #7 (x2)

When Revealed: The staging area gets +XThreat until the end of the phase, where X is twice the number of players in the game. If the players quest unsuccessfully this phase, put the Nazgûl of Dol Guldur into play (from any out of play area), engaged with the first player. (Cannot be canceled.)