Zone in from down stairs in the crypt accessed from the cemetary adjacent to Sonnborn Village. This is the hardest of the 3 group zones in this area.
Hulking Drachnid Prototype
Large spider. No adds or tricks, minor poison AoE.
Head Archivist R'Jhere
Noyle the Essence-Weaver
Spawns adds: a Libant lexiconian, a Libant shrewdian, a repository guardian, Prototype Drelok, Prototype Dracnid. Not sure if its the correct tactic, but we killed each add as it popped then went back to the named.
Large armoured character. AoE's at about 20% HP, so AoE avoid and burn is handy
Pillar of the Implacable and friends
A group of 6 mobs (or 5 is one is a pet class) You can tell their type by their appearance and name. Composition varies. An enchanter certainly helps, or a class with group root. Depending on the group you can expect fun things like Sanctuary, Fake Death. Memwipe looks to occur frequently
Censor of Reconstruction
Conduit of Elemental Fury
Orator of Misgivings
Tailor of Sabotage
Pillar of the Implacable
Tank - taunts
T'Lon the Powermonger
Boss mob. He's on his own island, surrounded by a fatal moat. A clickable platform takes you out to him.
He has a knockup AoE Blastwave, which does heat damage every 12sec. In order to not be thrown off the island players need to steer their char in mid-air. This AoE can be avoided with the various AoE avoid spells/signet, but the fight can be pretty long, so you won't be able to do this completely.
Disease AoE "Corrupting Seed" is a DoT, that needs to be cured. A mythicalled inquisitor can do this in mid-air!
Infrequent power drain - might be frontal only.
Another less damage/less common AoE is "Fel-charged Wave" - heat damage. Frontal?
At about 20% he stops AoEing, and you have a limited time to burn him (15sec?), or he does a complete heal -Fel-charged Overload (1.2Million hp)