Have a couple of cleaver units and give them whips to disarm the hexed units.
Archers are good for sniping the hexen at opportune moments.
Stunning is very effective since it gives you a turn for their debuff to wear off, and causes low damage to limit the friendly fire damage to the debuffed unit.
So cleavers/maces/bows are good weapons. some players use clubs, which might be the best tactic but I’m not a fan of carrying them around so I do the above mentioned.