OFB-12

Is there anywhere I can read about what the "Battle of Mages" is?

The "Battle of Mages" option introduces the following changes to the game:

1) Only a mage can be chosen as the starting hero;
2) A random starting hero will only be a mage;
3) Warrior heroes cannot be leveled up beyond level 5;
4) There are no warrior heroes above level 5 in prisons;
5) The red orb and cloak of defiance are banned.