Dropped the Lucid Remnant of Knowledge for me today along with the Dream Destroyer's Essence. My Shaman was very happy. Pretty straight forward fight, as others have stated. Hardest part is getting there. With all the See Invis between the entrance to this area, and the location, be prepared to have at least one death in your party along the way. Best bet is clear your way in, and the same getting out, or gate out if you can.