Chaotian Sect's six elite disciples clearly didn't intend to personally slay Li Yunmu. They weren't that stupid, and Chaotian Sect didn't allow them to handle things this way, either.
Regardless of the fact that they disdained Li Yunmu, his capabilities had already been proven. It didn't matter what tactics this youth had used, he was still someone who had cleared the twenty-fifth level of the Tower of Glory with a cultivation of ordinary crystal layer, as well as someone who managed to force Li Qinghong and Lin Jian to become his followers.
This was sufficient for Chaotian Sect to be on guard against him.
Thus, the six people didn't make any movements to engage Li Yunmu in close combat besides constructing the killing spell. These six were considered the hope of Chaotian Sect's youngest generation. If any of them perished, it would certainly be a great loss.