This isnt really a mod per-se, but rather an "unofficial patch". It will change your dom3.exe file directly.
I havent used it in a multiplayer game so I'm not sure if it gets flagged as cheating. I suspect it doesnt, but it would be good if someone could test this.
Features:
- Makes selected in-game spell descriptions more accurate, providing concrete values and formulas for spell effects instead of vague descriptions
- Ability to modify the spell descriptions yourself, with limitations (see readme file in download)
- Program is designed in a way so that it should work for any future versions of dom3.exe that Illwinter release
You can download it from my web site:
http://users.on.net/~dfidge/dom3/patch.html