C1350 Grade 7 Immortal Grade Great Desolate Qilin Devil Spear

The system had already given a clear answer. There were only two ways to upgrade the Devil Gun to Celestial grade.

Xu Liusu muttered, "A top-notch furnace for a sixth-grade Refiner... This is a little too difficult to do! "

Not to mention it was already difficult to find a grade six weapons craftsman; besides, for no reason at all