This week, players can earn a piece of Item Level 649 gear by completing an easy weekly quest!
Pick up Emissary of War from Archivist Frithrun in Dornogal. To finish it, you’ll need to complete 4 Mythic dungeons (standard Mythic difficulty, no keystone required).
After completing the dungeons, you will receive a 
Cache of Undermine Treasures. This cache contains 1 piece of Item Level 649 Hero-track gear, making it a great reward for anyone who’s willing to run a few Mythic dungeons this week.
This quest is ONLY available this week, so don’t forget to complete it on alts too!
