History of Sweeping Terror

Sweeping Terror is the debuff in the Cataclysm encounter of the Root of Nightmares raid. Its timer runs for roughly 33 to 35 seconds, and the team is wiped if it reaches zero. Each Tormentor killed extends the timer by about 30 seconds, and Tormentors spawn after two bubble-shielded Psions are killed. Guides from the raid's launch give slightly different timer values, so exact numbers may vary by patch.