Doesn't sound too bad.
We came up with a Ravnica based format between my friend group we call Guild Master.
Basic EDH rules apply except you may only use cards from the 9 Ravnica sets.
This includes your commander and he has to be two color so you cannot use Colorless or 3+ Mana Legendaries, etc.
Only creatures can be used as Generals as well.
Also any split cards like (Wear/Tear) or Hybrid Cards (Boros Reckoner) can be used as long as you share at least one color with your general.
The off color splits can still be utilized if you can make that color of mana some how (exp; Chromatic Lantern).
It's unreasonably fun, not too many imbalances either.
Almost every color combo is enjoyable to play as well.