This has already been included in the "Yushan Seventh Grade Profound Mystery Scripture," one of the five fourth-grade cultivation techniques, like the "Divine Illumination Immortal Ascension Technique" practiced by Wang Yang and Jiang Baitao, and the "Tidal Surge Thunderbolt Skill" practiced by Wang Ruoyu, all of which are top-grade wondrous methods directly targeting the Primordial Spirit Realm.
In Jichuan Profound Monarch's collection of books, there is no shortage of Sword Scriptures, but this one not only has an excellent grade but was also written by a loose Sword Cultivator who died thousands of years ago, so there is no problem in practicing it.
Although it is unclear what level this Sword Technique can reach today, regardless, it is a wondrous method for Sword Cultivators that can reach the Primordial Spirit Realm. For Xiao Tianci, who relies entirely on self-comprehension due to the severed Dharma Gate, it truly is as if a gold mountain has fallen in front of a pauper!
