1. Xeverin

You can reset the dungeon for whatever reason or to play it again. Just go outside and wait at least an hour. Two or more to be sure. If for some reason the dungeon gets stuck, just go outside and reset it (hopefully never happens). Items in the chests won't be deleted.


Adventurers each have their strengths and weaknesses, I could make an article about it, but I think I'll let you all figure it out. I'll give you one as an example though: 

The conjurer is strong against the wraith boss, weak vs dementia traps except the skeletons, average otherwise.

Also be careful with healers which buff the whole party over time (stacking), and the rare elite adventurers.

Finally, an issue you might have is not finding the guy that lets you rebuild Xeverin. Just wait a few hours in Xedilian and he will return to the entrance where you can talk to him.


2. Dark Resonator

There's a limit of 9 zombies for performance reasons. Let me know if it should be increased. They respawn after 3 days as normal, but if you wait 3+ days and all 9 don't show up maybe a few got stuck in the previous location, so just go there and get them (this happens very rarely in some dungeons).


3. Daedric Powers

They are some surprises here. Check out each of the powers, and also go back to Tamriel and see what happens.