It is common sense that any medieval army on the march would bring a few blacksmiths with them to maintain their equipment. Why not add a new paraphernalia type designed to make daily repairs to equipment? The coding would probably be pretty similar to healers, and it could make for some more interesting warfare, instead of the same old "March, Fight, Refit" grind that always develops.
You have healers to repair damaged troops.. why not have blacksmiths to repair damaged equipment?
