And about Keheric, in simples way to put it.. his boss fights reminded me about bad action hero villian or superhero villian, than never die until the last battle. Maybe a creative decision like, he escapes before you can do battle and then he become Super Sayan 2.0 would be better, like skip 2 fights and then only give player one good, long, intresting epic fight with him would be better.
Didn't you write earlier that you enjoyed Mass Effect series? Cause Ketheric battle is basically mirrored Saren fight if you think about it.
You meet Saren at Virmire and he monologues at you how doomed you are, but you have a chance to try to persuade/bully him into rethinking his stance on Reapers. You fight, you kind of lose and both of you escape the planet.
You meet Ketheric at the top of Moonrise Towers and he monologues at you about his family and how doomed you are, but you have a chance to "try to spare him". You fight, you almost defeat him but he escapes.
You meet Saren again at the Citadel Tower's Control Center and he again monologues at how doomed you are and how he's gotten upgraded, here you can persuade/bully him again into offing himself. Which skips the fight to the "Super Saiyan Stage".
You meet Ketheric again at the Illithid Colony's "control center"and he again monologues at how doomed you are, how his God (Myrkul) will save him and you can persuade him into offing himself (only if you attempted to spare him before) what leads to a very touching redemption scene, before he offs himself and skips the fight to the Apostle of Myrkul fight (kind of Super Saiyan?).
Sure, if you aren't interested in all the monologues and just skip them, then well...like others have said - that's on you.
When it comes to Ketheric I wouldn't change a thing, I actually would love even more of him in the game. If you were like me and snooped around where you shouldn't, you would've discovered pretty early into act 2 who Isobel really was to Ketheric. Of course, eventually the truth comes out over the course of the game, but Ketheric is imho such a fascinating character. While in Saren there wasn't a shred of goodness, he was just a goal oriented turian running roughshod over anyone that dared to get in his way, Ketheric on the other hand was a family man who one day lost everything. So he turned from worshiping Selune to the worship of Shar (because of the massive loss he suffered) and then he turned to Myrkul after 'lord of bones' returned his daughter to him.
Example Act 1 Baddies, you do not have kill 13 times them to die, and yes, I get what he is in the story line, like a chosen. Also the logic of "you can not go back from certain magic" would be better, like the demonwoman said to Wyll.
You are exaggerating, at best you have to kill Ketheric twice, at worst 3 times. Larian really likes the poetry of number 3 in BG3 I noticed, you have three acts, plot is orchestrated by the Dead Three, you've got three Netherstones and so on.
Also, Ketheric isn't just a chosen, he literally siphons immortality from Dame Ailyn (aka Nightsong) as long as she's imprisoned by the Soulcage in the Shadowfell Ketheric will remain immortal. That's the entire point of going through Shar's temple into the Shadowfell. To free her one way or another.
I would design the fight like this; you fight against Keheric one time, after monologue/dialogue and different roads to get there. So the One Fight happens in his Chosen Form/Super Sayan form and after you give him a killing blow, when he is down, in his Chosen, Disgusting Form, you can see how the charismatic man is gone, and he is now only a monster... That would be more dramatic and effective storytelling, than a baddie comes back from the Chosen From kind of death and become a man again just to say couple more words of monologue. You get my point now? Actions should have consequences, that is good story telling.
So basically you want ME1's final Saren fight and ME2's Human Reaper fight, while Ketheric already shares so many damn similarities with Saren and even with the Human Reaper battles, avatar of Myrkul has similar move set to the Human Reaper with the hand swipes and whatnot. The fight imho is already dramatic and unbelievable as it is. You are facing an avatar of a god at lvl 8-10. Normally such a feat would be nearly impossible to accomplish. Also, like I explained, there are other ways around "killing" Ketheric like convincing him to off himself.
Ketheric is the only big boss in BG3 where your choices and attitude towards him DO MATTER. And your actions have consequences.
Edit: Added spoilers where applicable and fixed typos.
