At that time, when Fang Yuan chose horizontal charge and vertical crash Gu as his movement Gu, he had already considered the situation when he advanced to rank four.
Horizontal charge Gu and vertical crash Gu were the two main materials to refine charging crash Gu.
With these two rank three Gu as the main, together with the Gu Master's primeval essence and some supplementary materials and so on, to refine charging crash Gu.
The process of refining charging crash Gu was not difficult.
Fang Yuan had made sufficient preparations and the success rate of this recipe by itself was rather high.
Two days later, Fang Yuan succeeded in refining and obtained a whole new Gu - charging crash Gu.
Horizontal charge Gu and vertical crash Gu could only charge to the distance of a hundred steps together.
