Ye Mo felt his Lightning Sword could slaughter large amounts of low level enemies, but against people who were stronger than him in cultivation level, it couldn't settle the score. He felt it last time when he fought that great extreme immortal. He wanted to go into solitary cultivation to refine his Lightning Sword, this dao seeking tower was perfect for him.
Other than his Lightning Sword, his Illusion Cloud sword technique was the same. Although he lacked the ninth strike, Ye Mo knew it was because he was at a bottleneck and didn't want to create a ninth strike. His Illusion Cloud sword technique also needed to form into a god art. Otherwise, he would have some difference between top masters. That Yan Jiutian gave Ye Mo a strong warning bell.
As for the world rock, it was worse. He just used his immortal essence and spirit sense to smash.
