As i know the game is based on German/Slavic myth/legends, Here is a good character that could be implanted https://en.wikipedia.org/wiki/Kikimora Lets say it could be random event that passing like nidbane by villages, looting some items and taking all into her inventory. The one or those who can kill that creature - could get everything she did steal from villages and some bonuses from Jorb's mind. But as price of looting after killing her, you could get some debuffs like -20% learning ability.
According to the description of the legend in Wikipedia, the spirit appeared where there were deaths or, say, murders that occurred “wrong”, which is very well suited for this game. I certainly would not want this character to be equal in strength to a fox or a troll.
My idea is very rough and should be improved by other players.
