The first time I beat it was with the assassin class, and I went back to the warrior class to see if I could beat it this time (I found warrior class the most difficult in my previous runs). Died, then tried again and got this broken sword item where I basically one-shot everything on the map. You can see I cleared everything on the "survive" mission because it's OP (don't you dare fucking remove it from the game, i need it)
The healer seems really useless (small amount of heal and has to stand right next to them in order to heal?), I always opt for the mage when I hire companions. Axe dwarf is OK, but I would never pick him over magic missile men