This cultivation technique map is not complete, yet the meridians it involves are vaguely intersecting and communicating with the Qi-refining technique.
The Xuan Tian Seal is more than just a divine skill; it may also encompass methods of martial cultivation.
Unfortunately, what Chu Zheng obtained was only a fragmented map. If only he had that incomplete martial barrier in his hands, perhaps he could have partially restored the path of martial cultivation.
The augmentation from the Xuan Tian Seal was exceptionally noticeable. After briefly sensing it, Chu Zheng's expression turned somewhat grave.
Back at the Song Family, if he had this Xuan Tian Seal, he wouldn't have needed a second move to kill Jiang Cunhu.
The key point is that this kind of divine skill isn't unique to him; similar secret techniques must surely exist in this world.