I am Lieshan. The magic weapon requires 12 Spirits of Luoshui, which can be exchanged at Zhaoduan of the Divine Realm. The accessories and secrets of the magic weapon require 25 Jade Realm Secret Slips and Futian Sacred Artifacts, which can be exchanged at Qingyun Tai. Go to Morality and change it. The magic weapon's special effects are defense breaking and a small probability of fasting. As for the price, the situation in each district is different. It depends on the price of gold in your district and how much people who hang the magic moon sell for it.