The first example was the gith patrol. I played a gith myself, had Liesl with me (The companion I trusted the most then), that kept pushing me to find that patrol and saying how that was the only way (no reason to doubt that right? They are likely to know far more than some random druid that saw a tadpole for the first time a couple of days ago and since that has been rotting in a cage). And I am one of them (where is that skillcheck for my character's knowledge? I am supposed to be more experienced than her).
So I go to them, party at level 3, and I get wiped the f out.
Second example was my first encounter with my favourite mole. My party, now at level 4, was sneaking through the underdark (tbf even going there seemed like a bad idea but it's like half of EA and I cannot reach level 5).
mole burrows under my party, turns around and jumps at me 3 of 4 down before I even get to do anything. Last one tries running, it's as futile as every other time I've tried it, and reload.
That DM would have been kicked out of the house and never invited to play with us again.
There where a couple of interactions too, where a streak of bad luck led to game over, I would like those to be extremely rare, not happening at least once per act.
Wow that got long, anyway I am interested in what some of you think about that. Where did I mess up badly? What mechanics did I miss?
Some of the encounters are level based, I did the same with the Gith Patrol and got wiped out pretty fast. I know another would be the swamp requires some levels under your belt as well. I have no experience with the underdark section yet so I don't know about that.
You mentioned additional damage in another section, it's more than likely poison on a weapon or sneak attack.