Ok, finished the last monk quest by abusing drac's piety on life steal. What I did was use a monk dwarf. Converted a few runes to gain around +3 health (with powerups). Got 20 piety by losing 10 health bringing me down to 3. Then focused on punching without killing any low level enemies (I took a -2 damage taken shield). The life steal over came the damage they did for the most part. I walked around a bit to let the monsters recover, then repeated the process gaining more and more life steal. Eventually I got 50 life steal I took out some high level monster to gain some good exp. And managed to take out super meat man at level 5 by stabbing him a couple of times then running off to stab some lower level monsters. From there I used the rest of my piety gains to get more max mana and managed to get my self a poison blade and enough health to blast tower of goo a few times before stabbing it and regenerating some mana. In the end I did the dungeon without using any potions (could have done it without the blade if I used up all my potions).
Oh, right... and brought triblade with me... because you know, it really help a monk