Thanks for your feedback on Rare tuning and feel. A couple things to talk about:
Generally, the Rares (especially group Rares) in Zereth Mortis have a bit more health than say Korthia or Mechagon. We wanted to try out making Rares that were a bit more dangerous than previously seen. Health is actually a great way of making something a bit scarier to fight without increasing damage done. If an enemy has a bit more health, that enemy will be able to attack more often – dealing more damage in the process. We do however see a few enemies that likely have too much health currently. We are taking an active look at some of the outliers in that regard.
On the tuning note, I am assuming you are referring to the damage done / frequency of abilities (please correct me if I am wrong). This is largely due to the same point above. There is an active want on the team to make more engaging, non-instanced combat. Rares, Elites, Quest Bosses, etc. are a great place for that, but there are some outliers for sure. The upper echelon of what we would consider appropriate for a Rare Elite would be something like Otaris with their rotating beams and missile attacks. We are okay with some Rares being more difficult than others - those peaks and valleys provide valuable texture to the game and can make for some memorable play experiences.