C1054 Real strength

Using the Ghostly Alteration would allow one to refine their Ghost Spirit in an instant, and then, use the resulting Gas of Death to strengthen their own bodies. After refining one Gas of Death and merging it into their own bodies, they would be in danger of falling.

From the looks of it, Guo Xiaolei was already prepared to die in battle.

However, Corpse Ghost Priest was not afraid