The following period of time was basically the time to stir up trouble. If it wasn't for the fact that only the contestants could leave their names on the wonders, Lin Xuan would have already started charging toward the four wonders.
When the Soul Slayer skill was activated, Lin Xuan also learned how it actually worked. The skill itself had a rank. According to the description of the skill, every time he killed a spirit, he would be able to obtain a higher level of Soul Slayer. However, the Soul Slayer status obtained from killing a yellow-rank spirit could not affect a mystic-rank ghost spirit. Oh, there was still one, but it was weakened by a thousand times!
Was the yellow-rank killing status useless? That was not the case. Every thousand layers of yellow-rank spirit-killing status could be combined into a mystic-rank soul-killing status, and every thousand layers of mystic-rank soul-killing status could be combined into an earth-rank soul-killing status!