art and simply call it "Huanyidan".However, Xuanwen He Yun Dan has a characteristic that He Yun Dan does not have, this characteristic comes from Xuanwen Huang Jing.If this spiritual herb is old enoug...of the Machine was secretly furious. This illusion array, even he couldn't see through instantly, which showed that the person who set up the main formation was probably not inferior to that thief jus...