The Tiangang magic is not easy to learn, not easy to master.
Most of the immortals in the Immortal Hall have only mastered one or two divine techniques, and they are all specially selected based on their master's unique vision and according to their own abilities.
Only in this way can the immortals' cultivation become twice as effective with half the effort.
Take the Qishan Clan's technique of holding mountains and surpassing seas, the wondrous art of transformation, and the ability to stand without a shadow; or the flying body technique of the Chasing Mourning Horse; Huang Xiaoliu's Vertical Earth Golden Light, the Stone to Gold magic; or the Red-Tailed Monkey Immortal's wish fulfillment and dragon-subduing divine techniques.
Even Xuan Yu has learned the divine techniques of spirit wandering, penetrating walls to see through, nine-breath energy cultivation, and the art of returning the wind to reverse fire...