Re: balance
If I want the game to be challenging then I have to limit my options.
Leech is not an option
Glass Cannon is not an option
Stacking Rubies is not an option
Mages are not an option
Easy and Medium difficulty (obviously) are not options
Telekinesis in combat is not an option
Putting Stealth on every character is not an option
etc
At a certain point, the number of options I have left if I want the game to challenge me are pretty slim. That's not a good thing. Ideally, I could simply switch the game to Hard mode and it would be balanced enough to be actually hard. In a well balanced game, people who want to be uber powerful set the difficulty lower, and people who want to be challenged set the difficulty higher. In an unbalanced game, one or both of those groups are gonna be disappointed.
Currently DOS is unbalanced. People who want to be challenged can't rely on the game to challenge them.
Try no leadership.