Uchiha Yi felt a deadly threat. The Tenseigan's power had surpassed his expectations.
He strongly suspected that the Giant Tenseigan was even more powerful than Otsutsuki Toneri's Tenseigan would be in the future.
It might have been made by piling up countless Byakugan, but quantity could become quality!
Toneri's constitution had already begun to revert to its ancestral state. Even the Celestial People acknowledged him as a true Ōtsutsuki. His body might not have reached Hamura Otsutsuki's level, but it was far superior to that of his descendants.
Toneri's transformation had not fully completed, though, and he had faced a Naruto Uzumaki whose power had reached extraordinary heights. Losing the Six Paths Yang Power had left Naruto unable to enter Six Paths Sage Mode, but the Asura Chakra within him had fully awakened.
By then, Naruto's bloodline had reverted to Asura's level. With the Nine-Tails' power and his own combat skills, he remained formidable even without Six Paths Sage Mode. It was hardly incomprehensible that he had defeated Toneri.
The Tenseigan and Rinnegan were indeed eyes of the same caliber. Yet even after Sasuke Uchiha awakened the Six-Tomoe Rinnegan and gained the Six Paths Yin Power, he still needed the Chakra of the Nine Tailed Beasts to fight Naruto, who wielded the Six Paths Yang Power and could enter Six Paths Sage Mode.
That showed that even at the story's end, Naruto had held a slight edge over Sasuke.
Sasuke and Toneri should have been comparable, and Sasuke might even have had the superior combat skills and techniques.
It seemed only natural, then, that Naruto could defeat Toneri.
Yi was undoubtedly stronger than Naruto without the Six Paths Yang Power and Six Paths Sage Mode. Even without using his Rinnegan, he might well have been able to handle Toneri.
But