Ice elementals healing enemies instead of damage.
AI before and after combat leading my members through hazards.
Fire elementals expiring and setting my group on fire.
Using a bloodstone is not an obvious action.
Things of note:
If you edit your player and choose to specialize in one form of magic or make your wizard a sword and shield guy you still get the spells that you can no longer use.
Using the blood stone is not obvious... I was stuck here for a while. Possibly add some link to the imp telling you "ooh you found it, you should use it and see what it does!" or something like that.
Spiders are nice, but that seems like witchcraft sort of thing. I think wardens and rangers would likely summon wolves. Also I don't always want to poison undead and having the option to use wolves vs. undead may be preferable if I had a choice.
After fighting the Steam Bot in the cave and being informed that the towns wizard created it.. I thought I'd discuss it with him. Nothing to discuss... I think there should be some dialogue on the subject with him. After all there was a skeleton driving the thing. Hm.. "skellasteambot" seems sketchy to me. As a source hunter I think he's crossing the line.
Rez scrolls are hard to find. I struggled through the game for what seems forever without being to find any to buy, and then one guy had 15 of them. Perhaps rez scrolls should be common items sold by the town healer? Or perhaps you could just pay him for the service?
Otherwise Game looks great! I like the changes in the last patch they all seem marked improvements.