Unholy Attainment: Essence of Darkness

Description
Once a Gilnean archmage, Arugal unleashed the worgen, and they attacked both friend and foe. Collect the Essence of Darkness from his soul in the Shadowlands.

Counters

 * Soul of Archmage Arugal:
 * Fenrus the Devourer:
 * Tainted Blood: