Zekvir ?? feels like a Dark Souls boss, just not very good one
There is just too much randomness to the mechanics and at some point skill stops being the issue you just need luck. For example the egg - It absolutely can't be controlled at all. I tested it. You can have the boss near the entrance and it can, and will often, spawn on the stairs. The fact that not all classes can deal effectively with Enfeebling Spittle is absolutely crazy.
What I mean in the title is that Zekvir is hard like a souls boss but isn't consistent like one. And don't get me started on the design of the arena - it's atrocious. Can't fully zoom out near walls. There are stairs for some reason to randomly get stuck on during fear or frontal.
Before the obligatory "Git gud scrub!", I beat him two times. One for me, with my Ret Pally (Yeah I know - easy mode). And the other for my wife with Arms Warrior. I have been maining Palladin for 12 years and it took me between 20 and 30 tries. The warrior was a different story entirely. I don't know how many tries I did, but I wasted 23K gold on repairs. 125 gold per repair - you get the picture - a lot of tries.
For reference: Pally 618ilvl, Warrior 619ilvl. Both full sets.