Wow, this is quite an elaborate post :з
Well, I didn't know that Assassins had two invisibility spells. I'll have to take one away. To be fair, in the beta, the Necromancers were casting Enslave at an advanced level, and I nerfed them, so it's all fair.
Yes, it's problematic to kill Sareta).
You can kill the Demon: Sareta doesn't go to the Inferno city, and after defeating Grog and his humble dwelling, Railag will kindly teleport you directly to a battle with Isabelle. And he'll give you a good boost. The other question is that the Demon is significantly stronger than the final boss).
Dark Assassins - No gad please Nooo
"Dear diary, I can't describe the pain and humiliation...." (You get the idea). Maybe I'm not that much of an Hearthstone player, but I can't imagine how to beat it "fairly." I probably won't check it in the new version)).
Sareta is problematic?) But still, you can probably do it for the sake of it, maybe with cheats?))\br>
You can beat the Demon, just for the sake of it....)) And maybe I'll add to the post....
Regarding the elaborateness of the post, if I like it, I write it from the heart, so to speak. Maybe my experience will be useful to someone, even though I'm revealing everything, maybe someone won't be interested in playing (on the one hand), but on the other hand, maybe someone will find answers to questions, a kind of manual for those who get stuck on something (although I try not to read it until I finish).
Thank you for explaining the lore (we can use "you" if you don't mind), because I lost track after the campaigns. I understand that there is no official story from the developers, it's all based on fan scenarios...?
So, when can we expect the continuation?)) Thanks again for the map and for the enjoyable time