A heavy dark blue metal cube. Carrying this item halves your speed but increases your strength modifier by 2. This cube disables spider climb and flight. This cube weighs 41 lbs. A golem can be constructed out of this material if the party somehow comes across enough cubes. This golem would have 3 ft. of walking speed and have a +13 strength modifier. It would retain the rest of the Iron Golem's stats and actions. Items made from this material would not have the halved speed and the extra 2 strength modifier.