| D'arandriel |
No hard and fast rules, but I allow for exceptional craftsmanship of non-magical weapons to grant bonuses on to hit, damage, initiative, critical threat range, and whatever else I think makes sense. Also, I allow non-magical adamantine weapons to have a non-magical +4 bonus and non-magical mithril weapons to have a +3 bonus (logic being that you need a +4 weapon to bypass DR/adamantine and +3 weapon to bypass DR/silver, which mithril bypasses).