In the Primal Universe, no matter how high one's realm was, the greatest combat power one could unleash was only that of a sixth-tier Universe Master, a level only Universe Masters with Supreme Supreme Treasures could reach. Yet Luo Yuan's blade technique, Heaven Opening, was a secret technique that surpassed the Strongest One in the Universe. With his current divine power and comprehension, Luo Yuan could at most unleash the power of a Strongest One in the Universe, but under the restrictions of the Primal Universe, he could only unleash the power of a Peak Universe Master.
Thus, when Luo Yuan unleashed this move, he clearly felt the suppression of the cosmic rules. Even so, he could threaten a Strongest One in the Universe. After all, a Strongest One in the Universe could only display roughly the same strength within the Primal Universe. Dealing with the Demon Race's Universe Masters was even easier. Luo Yuan had killed two of their Universe Masters outright with just his first slash earlier, forcing the others to hide inside a Palace-type Supreme Treasure, afraid to come out.
Within the Primal Universe, aside from the Strongest Ones in the Universe, Universe Masters could reach at most the fifth tier, unless they too possessed Supreme Supreme Treasures. In fact, however, apart from the present Human Race, no faction in the Primal Universe had Universe Masters who possessed Supreme Supreme Treasures. Treasures like these, capable of safeguarding an entire race, were held only by the Strongest Ones in the Universe. Otherwise, Giant Axe would not have taken such a risk back then.
Now, Luo Yuan, Lord of Darkness, and Lord Peng Gong of the Human Race were all Peak Universe Masters. After acquiring Supreme Supreme Treasures, they had also reached the peak of the sixth tier, becoming