What Qian Sanyuan and the others didn't know was that Yun Xiao agreed so readily because of his interest in the Refining Treasure Hall. After all, his current unrivaled Dragon Taming Nine Swords were obtained from the Refining Treasure Hall.
The Dragon Taming Nine Swords only have two forms revealed now: Flying Hidden and Illusion Form. These two sword moves have several times brought him back from the brink of death, even turning defeat into victory against strong enemies.
For example, some mighty Heavenly Spirits, or the Vice President of Spirit Fighting Commerce, Vice Tianyun, all died under the Dragon Taming Nine Swords. This swordsmanship meridian technique tailor-made for the Dragon Sword is indeed a very formidable trump card for Yun Xiao.
