According to the cultivation world, magic weapons were divided into two types: treasure weapon and spirit weapon, each of which has four grades: primary, middle, high, and extreme. Then, the corresponding materials for refining these magic weapons were also divided into eight grades.
The improvement from the out-of-body stage to the distraction stage of Huangji Shaking Heaven Record requires about the same metal as a middle-grade spiritual weapon material.
Of course, there were many kinds of materials for refining magic weapons, including gold, stone, jade, liquid, crystal, etc., and there were even more exotic materials. The only thing needed to cultivate Huangji Shaking Heaven Record was metal, and it was the designated five-element metal, which cannot be replaced by metal of the same level.