Ten-Thousand-Year Netherworld Divine Iron

Even Yan Chihuo, steadfast as his Dao heart was, could not help but be moved as he gazed at the blue-black Netherworld Divine Iron before him, a piece as large as a full-term infant.

Netherworld Divine Iron was originally among the finest materials in the world for advancing magic treasures such as flying swords into spirit treasures. Spirit treasures had always been unable to be directly forged; they could only be advanced from magic treasures. The same was true of transformed spirit treasures, which required advancement from spirit treasures, while Pure Yang Spirit Treasures were advanced from transformed spirit treasures.

If a magic treasure were allowed to advance step by step on its own until it ultimately became a Pure Yang Spirit Treasure, who knew how many years or months that would take? Thus, Cultivators often sought out superior materials and refined them into their magic treasures to hasten their advancement. Ten-Thousand-Year Netherworld Divine Iron was even rarer and more precious, often used to advance spirit treasures into transformed spirit treasures, or even Pure Yang Spirit Treasures.

Yet Fire Crow Daoist's artifact-refining skills were truly exceptional. He actually had a method to use this Ten-Thousand-Year Netherworld Divine Iron as a Magic Treasure Embryo. What made this piece of Ten-Thousand-Year Netherworld Divine Iron even more precious was that it had actually developed spirituality.

This spirituality was of no use whatsoever in artifact refinement; on the contrary, it hindered the process. But whenever any spiritual material developed spirituality, it proved that its fundamental nature had been elevated immensely, making it all the more coveted by Cultivators. For artifact refiners, however, completely exterminating such spirituality was by no means easy.

It was not that the spirit of the material itself was particularly formidable, but rather that it hid within the spiritual material, making