Gandalf: I tested one of those mods recently, and it seemed to be broken

So any such game would need a fixed mod to work.
Back when I was a newer player, I would have agreed with some of your proposed spell removals. But having played a decent number of games now, I just can't agree with things like removing mind hunts, etc. For one thing mind hunt really IS a pretty easy spell to defend against. And those tir thugs that were being talked of earlier can easily have 20+ MR, which drastically ups the number of mind hunts required to kill them. And is really one of only a very few ways they can be killed. Most of these sorts of spells are almost necessary in the late game to allow you to actually kill the other surviving players, who may have well over a hundred mages and a significant gem income that would make a normal sort of war between the two of you go on forever.
The best way to handle spells you don't want in a game is just to agree beforehand that they are banned. Plenty of games do that and that's fine. But you'll never get the community to agree to remove most of those spells. And I think you are overestimating (or overstating) the effectiveness of some of them by a fair margin.