The Meta is the biggest problem - the defense is too long, way, way too long, in addition it's pretty trivial - heavily scaled up and I have repeatedly managed to stay alive with my warrior alone vs half a dozen enemies (partly due to the insane bonuses you get if you have all 3 mastery's buffs), could have done with, at the very least, a champion assault on each shrine. Further, the actual boss fight is.... difficult to recover from if you fail to chain at the first point - you shouldn't, however I had it happen and by the time people could respond it was already basically passed the second chaining point, from which there was no real recovery. Sure, that's ineptitude on the part of the players, but the terrain is laid out in a way that makes recovery almost impossible (you have to break combat, mount, jump the cliff and then get the chains going in the space of a few seconds after it shrugs off the first chains) normally I would say this isn't a problem - there should be a challenge to the metas to some extent... except failing the meta screws the instance royally; and well over 90% of the reward is after the boss. Finally, the Boneskinner in the map should be less frequent (as others have said) and a legendary - that or keep the frequency, but make the actual fight substantially harder, as it stands, it is probably at best 4th or 5th in terms of difficulty in terms of the non-meta related champs, ranking it pretty close to the bottom (the Skelk, Leopard Shaman and Kodan Berserker are definitely harder, arguably the summoner too) despite it being probably the most interesting boss (we've beaten plenty of Svanir and other corrupted Norn/Kodan by this stage) visually. It also needs some better mechanics, because at the moment it's literally just a "Press 1 until it dies" boss.