- The Twilight Zone (10 player)
- With all three Twilight Drakes still alive, engage and defeat Sartharion the Onyx Guardian in 10-player mode.
- Title Reward: Of the Nightfall
The Twilight Zone (10 player) is a dungeon & raids achievement earned for engaging and defeating Sartharion in Obsidian Sanctum on 10-player mode with all three Twilight Drakes still alive.
Sartharion + 3 drakes strategy guide and video (Updated for 3.0.8)