I have a GM in our D&D game who is being extremely problematic and toxic in our D&D game.
The last session we were in, the five of us were exploring the desert seeking out a pyramid where a dry lich was supposed to be hidden.
We came across a town in the desert that was being attacked and decided to stop in to resupply and help out the locals. Going up to the church, the GM tells me, "You feel an extremely powerful force walking towards you." and I decide to use my paladin's Detect Evil class feature to get an idea of what it is. Suddenly, I get told I'm having a nosebleed and I get stunned for a round.
No save. OKAY, that's not fair, but I decide to let it slide because he uses the round to just talk. What it basically boiled down to was the lich we were after had just gone in and killed most of the people in the temple as a warning, and now he was looking at us to see what we would do.
Naturally, I decide we shouldn't fight him because of how broken overpowered having the ability to stun and cause blood loss without saves is, and maybe we can take him later. I decide to call it a night and I leave, because honestly I don't want to lose my character to this stupid cheap stuff.
The GM loves to do this kind of thing. Another example was when we were doing a dungeon crawl and there was a treasure chest in a secret room. Out of nowhere it was suddenly a mimic just because I wanted to open it. The GM does this kind of stuff all the time, treating the game like normal for everyone else and then suddenly raising up the difficulty just for me. I once played a kobold in a game of his and I got killed just because I was caught stealing an apple in a human town, despite the fact that I was journeying with a group of other players.
I need your help in figuring out how to easily cheese this lich. I don't want to lose my character to some save or die because I know he'll cheat and either not allow a save or just fudge a roll. I can't miss another game session (I told him I had to do something last week) or I might get kicked out, and we play on Friday.
If you have any tips or advice on how I can defeat the lich without really putting myself in a position where I can get insta-killed that would be great. I have a lot of time and story developed in my Gnoll and I do not want to start over.