After the Cataclysm, when hordes of demons were pouring out of the Nerathi Wastes, the closest cities and kingdoms lived in constant fear. They had their own wizards and there was still a handful of Maegi about, but for the most part, mundane weapons were the only option. Against a dretch or some minor demon, it could pass. But should a vrock or marilith attack, it would be a slaughter.