Liu Yan looked at the newly acquired S-grade earth attribute skill, Rock Wall.
Liu Yan had some experience in using secret art. Although the attribute skills comprehended through secret art were only of S-grade, they were much more powerful than ordinary S-grade skills.
After all, those skills were comprehended through the secret art. At the same time, it was also enhanced by secret art, so its power was naturally stronger.
For example, the Prison of Giant Trees that he had learned from the Wood Secret Art was an S-grade skill, but it was powerful. It could trap powerful beasts above its level, which was of great help to Liu Yan.
Fire Secret Art had upgraded his S-grade Flame Control to the SS-grade Flame Blast. It had now become Liu Yan's strongest attack skill.
Liu Yan couldn't help but look forward to the S-grade skill, Rock Wall, that he had comprehended from Earth Secret Art.
Immediately, Liu Yan checked the effects of the Rock Wall.
