Ten-headed Fierce Yang Serpent is a Prehistoric beast.It has a deep red body. Incomparably poisonous, adult length over ten meters, possessing the most powerful fire poison of snake types, capable of forming a neidan after ten thousand years of cultivation, within those nine heads on its back. The emergence of the neidan would cause heaven and earth to pale. Obtaining that neidan, one could terrify the kings of serpents. Thus being a lord of snakes. The neidan could be absorbed like a Spirit Ring.