A pill of Grade 5 or higher, exhibited Danxiang (a phenomenon formed by the gathering of Lingqi during pill refinement, only possible with Grade 5+ pills). Chen Wen produced this pill in a jade box, causing the surrounding temperature to plummet with bone-chilling cold. Even the head of the Fancheng Yu family, a known Liandan prodigy, had only just managed to refine Grade 5 Pills.