I still think, as a warrior, taking on those damn skeleton summoner things are nearly hopeless to impossible. I had to use a bow, and you can't run or it just heals up. and you have to deal with the summons too. I could probably kill him after running around for an hour or 2 shooting him with a bow, ugh!
I'm now playing on normal, and some of those monsters, even on the quest to restore Mardanius' sanity, are incredibly hard.