There is a way to create several custum builds, if your computer survives opening the game more than once. There should be a topic about that somewhere.
If you don't fight Griff, you don't have to kill Butter obviously.
Our team is shield warrior, rogue and archer with a mage mostly just doing support stuff and dual wanding, so I guess you could call it unbalanced. In my eyes weapon based skills are stronger than pure magic, magic doesn't seem to deal that much damage, if you don't got explode everything way.
Also since today there is a topic for more special builds.
