I'm sorry, but the whole thing reeks to me of trying to get the quickest and easiest way to shut down a wizard without having any of the costs.
Mr. Death said it quite good, those things are not really how things work. They might, if you want to put it in as a houserule, but I find it rather strange, at the least.
One thing I might want to add: You are mixing conflicts, and that in itself is going to be all kinds of confusing.
You might consider making the attack a justification to begin a mental conflict, which will happen in its entirety during one exchange of the physical conflict. This would, again, only justify a maneuver + tag for effect. You would basically battle the wizard over the control of his magic, but he could, in return, attack you. This I would see as much less harming and much more balanced.
What is wrong with the numerous other options presented? A block? A maneuver? A block/maneuver incite emotion like ability. Spending a fate point to compel the wizards high concept? Those are all things that are already established in the rules, and they work pretty good. Not trying to be snarky, I just didn't get why you don't like them.