I'm not sure if this is the right section to write this but it seems like a lot of items has a too high chance to proc. Some spells like conflagrate and shield slam deals too low damage as well. I also found that Gurthalak Voice of the Deeps doesn't work as intended, because apparently there's no Mind Flay coming out of the tentacle which unfortunately is a huge DPS loss. Since it's an awesome weapon I think it would be great to see it working properly! ^_^ Also the attack power gained from Vengeance deteriorates a little bit too fast. Shield slam is also too weak damage-wise.
As I previously mentioned, I'm not sure whether to post these issues here or not but hopefully you can take a look at these issues that I've listed here and see what you can do

Btw, do not take this as a 'to-do list' or anything. I'm just trying to help out. This is issues that I have come across.
Try to focus a lot on making the classes and the current tier PvE items and current PvP season items work properly. It would be wonderful to be able to do some fun PvP/PvE on the server knowing that most things work. Very nice work, keep it up!