[WraithLord]

I think the AI is clueless when it comes to SCs. It doesn't recognize them, it can't build, equip or script them and its certainly unable to counter them. SCs would have been seriosly toned down as well as MM hell of nurturing them (equipment, scripting etc) if the (friendly) AI had a clue what they are and how to counter them (by making sure your mages cast the anti-SC spells and not some junk that fatigues them until they pass out).

Even if you manually script a bunch of N mages to charmX5 and face the enemy's SC on holdX5 (out of range) you're likely to lose all your mages due to that limitation of the AI. In-fact however you'd script your mages you'll most likely lose them in said scenario.