The Atlas Divine Spear used to be the martial spirit of Yun Ming. Before he died, he created the divine weapon and gave it to Ya Li. When Tang Wulin came back to the Tang Sect in Heaven Dou City, he was given the divine weapon.
The divine weapon was likely a low level one because Yun Ming created it when he used an incomplete God Tablet in order to become a God.
The spear was pure white inscribed with runes that shimmered with radiance distinctively.