That is atleast different! It would be interesting, and I would try it, but I don't know about playing it... And I suspect the AI will be very bad at it. However, if you have the map, the basic idea is easy to test. Just make four nations consisting of four commanders, give them some magic and disable all the spells with those spell disablation mods. Then choose some spells (elementals, howl, raise dead/skeletons) and test it.
There are lots of interesting options for this, as all the non-modded spells will be disabled and there is no reason to hold back.
