Storm of the Southern Lands
Red durluminum is an ore that is lighter and more durable than steel. It is found in deep mines that contain toxic gasses harmful to breathing being. Only the Red Gaurd are allowed to wear armour made from the metal but weapons are availible to those who can afford it.
When created into armour it give the wearer a -1 to the AC
When a weapon is created out of the ore the weilder gains a +1 to hit