The strongest powers came in many forms. For instance, peerless divine arts capable of slaughtering enemies—Buddha's Palm was one of them, and the truly complete Seven Limits of Heaven Devouring Earth Annihilation was another.
Unfortunately, Xiang Yang had not had the fortune to obtain the former, and this supreme Buddhist divine art had long since been lost.
Though his primordial spirit could slip into the Void Information Ocean and seize boundless reserves of knowledge, he had yet to comprehend the martial mysteries of past and present. He could only vaguely sense martial intent related to himself and the blade path. Moreover, he had already attained the position of the Heavenly Saber. Apart from the blade, other paths would find it difficult to reach great completion. Even if the divine palm lay before him, he likely would not be able to unleash its full power.
As for the latter, he had merely reverse-engineered it based on his own martial knowledge and the first five Limits rewarded by the Heavenly Book. Its might was indeed boundless, but compared to the original version, there should still have been quite a gap.
To put it plainly, the Seven Limits of Heaven Devouring Earth Annihilation had been created by the great god Chi You. It contained world-destroying power. With it, Chi You had subdued the gods of the divine realm, swept through all opposition, and become the foremost of the great gods. At its strongest, it could rival Buddha's Palm, or even the Three Pass Martial Path practitioners of this world in sheer destructive force.
Yet this divine art required one to draw the power of heaven and earth into the body. A small amount could be endured, but too much would cause one, just like a Three Pass martial artist, to be burst alive