Wicc
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The draft is largely influenced not only by the strength of the factions but also by personal preferences. For example, there are many players who simply don't know how to play as Necropolis or Fortress, so they ban them, both to avoid having to play them themselves and to prevent their opponents from playing them.
So, the draft isn't very indicative in this regard.
The solution is to generate factions randomly using a randomizer, and then allow players to trade for their preferred color and faction. In my opinion, this is the most important thing to add to the rules, rather than focusing on minor details.