I feel this warrants its own topic. The level of frustration is incredible.
Why is this boss designed the way it is designed? It makes no sense to be honest. You design a boss that heals if you touch his totems with any kind of damage (they have extremely low hp) and you put him in a very narrow dungeon where he absolutely spams the living shit out of those totems. It's basically the only thing this boss does and feels extraordinarily cheap in a way I can't describe. It feels I'm robbed of a good charm. That or I take like 5 hours going 1 hit at a time until he dies. BUT WAIT, he often teleports on you because there's not much room where he can teleport and then you accidentally hit his totems and heal him anyway, undoing a good chunk of your progress. How's this hard? It's just menial and extremely tedious. I appreciate difficulty when I see it and that includes assur, baal etc., but this is laughably badly designed.
Now please explain this to me, because I have never met such design in any games I played and I played arpg for thousands of hours. I need to mention I also played median since median 2008, although with huge breaks in between and I always wondered about this. So here it goes.
Why are some bosses extremely fair and well designed (baal, azmodan etc.), while some are just a time sink, trial and error and/or die until you kill them? Athulua comes to mind as well. Why do I need to die every time I get hit by her guided arrow that stuns (which by the way lasts forever and you will eventually get hit, so you get stunlocked and die)? I killed her, but simply had to cast barrage whenever she came on top of me, die and repeat when stun arrow hit me. Don't you want players to feel like they actually outplay the boss or play around him? Why do we NEED to cheese some bosses? Like, there's absolutely no legit way to kill some bosses, at least not with certain characters. I'm genuinely asking.
Lastly, maybe this is a personal preference, but why is median xl so hard overall? I mean... ever since I started playing it, I found some uberquests or uberbosses to be absolutely impossible or just needing hours to kill them by either cheesing them or repeatedly dying. This is coming from someone who played thousands of hours all kinds of arpg (poe, torchlight, diablo 3, diablo 2 vanilla/various mods) and I have never met such degree of difficulty for the sake of difficulty.
As a side note, I am very impressed with the current version, including with stuff that I never thought possible from a mod (new towns, special modifiers similar to diablo 3's on unique items, basically a lot of hardcoded stuff that takes a lot of work) and the progression actually feels nice. But I feel like it is shooting itself in the foot with certain aspects. That's just my opinion, take it as you wish.