C953 Achieving Immortality
Nie Chen crudely created his technique, but he didn't know if it was the most powerful technique, so he naturally needed to practice it in actual combat.
Nie Chen quickly understood the [Daoxuan Sutra]. This was his original technique, and he would never abandon it. The [Daoxuan Sutra] was like Nie Chen himself, which could be illusory and ethereal, and could be used in actual combat