C2935 A Sigil Formation

"The weapon refining assembly in Black Iron Star?"

Ning Yufeng flicked his sleeve and smiled faintly. "This kind of thing... I have no interest in it. Besides... Artifact Refining Arts. I don't know, and I don't have anything to see. Not to mention, The Immortal Artifact can only be refined by relying on a core weapon embryo produced by a planet