C499 Azure dragon reverse scale

"You guessed right, this is the green dragon's scale, and it's a Azure Dragon reverse scale as well. This kind of thing is very rare, I met Senior Azure Dragon in the ocean a few years ago when I was travelling in Xuan Zhen Continent, he gave me this reverse scale at first sight." Even if Cheng Fei wanted to, the Immortal Wu Shang would be able to see through it