ToME: the Tales of Maj'Eyal

I really miss playing as a lost soul. I enjoyed it a lot in ToME2, to be able to try a game the other way around. I think I never really made good use of a Lost Soul, but it was awesome to wander around 90+ level mobs.
I remember the joy I had the time I found a ~25 level mold I could manathrust endlesl and got to level ~15 in one turn.

Are there any ideas to implement something similar? Some kind of different and insanely difficult start.

Download beta 11 and play an undead

For extra "fun" he should try playing a ghoul.