It's not difficult to get mentorship. You don't need any amulet. Moreover, you have a mentor + be more careful when leveling up other skills, that is, prioritize choosing mentorship (each subsequent perk after the previous one has a higher chance of appearing).
It's like "The Law," as I warned you :)
You're thinking in the right direction about how to avoid him :)
The dwarves turned out to be treacherous. I also warned you about the saves. Regarding the tricks, there are signs before the dungeons that also warn you. Forewarned is forearmed (c).
You don't even need to bother with mentorship: there is a dungeon for training "roaches," but there is also a nuance there, which is easily solved with one trick for "offline players."
I'm glad that you were hooked by such an "annoying" map. But I didn't try to make too complex puzzles. Be careful with the single portals :) Legions of Titans are also no joke, and without Sandro's artifact, he can do a lot of damage...