The Sepulcher of the First Ones Dungeon Journal has been updated in the latest Patch 9.2 PTR build with lore descriptions of each encounter, and updated mechanics.
Boss Descriptions AddedAll of the bosses had boss descriptions added in this build!
Vigilant Guardian: This eternal guardian lies in wait, keeping a timeless vigil over the entrance to the Sepulcher of the First Ones. Dausegne, the Fallen Oracle: Controlled by Zovaal, Dausegne leads the mawsworn in a battle to gain control of the Read more on wowhead.com