Chapter 167 of the Tao Te Ching

"Master Feng wanted to help a customer forge a Third Rank Treasure Artifact, and the requirements for hammering the base material were very high. I was brought over to use Thousand-layer Iron to make the base material, which fortunately succeeded," Chu Hao continued after a pause.

"Previously, because my strength was too weak, Master Feng requested a few Huayuan Pills from the Sky Heart Sect for me, which caused my cultivation to advance rapidly. After the work was completed, Master Feng was so delighted that he rewarded me with a cultivation technique named Nine Turns Fire Dragon Jue. It's an Earth Level Lower Grade technique that is completely compatible with my physique. After practicing it, I found that not only did my cultivation speed increase several times, but my Star Force also became extremely solid."

After Chu Hao finished speaking, Wu You and the ten others all showed expressions of disappointment.

Earth Level Lower Grade? The Yunliu Sect has several of those.