Sealing the Blade
Defeat Thracu, Warden of Oryx, and then Alak-Hul, the Darkblade, within 30 seconds to seal your Arc Edge.
"The Wardens you seek are infamous devourers of the Light. Each has its own heinous preference. Together, they guard the Sunless Cell, where Alak-Hul, the Darkblade, languishes." —Eris Morn
2015.09.09 (The Taken King)