I'm not sure i like the idea of starting every battle trying to get two or three dispels in regardless of what type of mage character you play. This seems to take away from the diversity of the various mage classes.

Also, been a while since i've played a voker, but I remember having a hard enough time against villagers given that they seemed to spellbane at least 2 out of every 3 spells i threw their way and most of them had a way to silence me. Not sure i like the idea of some of them being able to wipe out my A/B/S and voker shields in one blow.

I might be ok if they created some specific edges that manipulate the way dispel works, but i think you should have to take one path or the other, not being able to get dispel to do everything you originally mentioned.

For that matter, might be interesting to see some edges around cancellation to manipulate what it can/can't get rid of.