Although Truth-Seeking Orbs possessed the full power of yin, yang, and all five elements, allowing them to easily surpass kekkei genkai and kekkei tōta, they did not qualify as kekkei mōra. [The official reference book, the Book of Formation, classified Truth-Seeking Orbs as "ninjutsu."]
Only the "Expansive Truth-Seeking Orb," also known as the "Final Truth-Seeking Orb," that Kaguya Ōtsutsuki unleashed after absorbing the chakra of the ninja captured by the God Tree truly qualified as kekkei mōra!
But Truth-Seeking Orbs themselves did possess a degree of expandability. Expansion was essentially the process of turning a solid sphere into a hollow one, sacrificing density for volume, so ordinary Truth-Seeking Orbs could only expand so far!
Yet because Truth-Seeking Orbs could erase matter, even an expanded "hollow sphere" posed no less of a threat to an enemy. Sacrificing density for volume was tactically viable!
The greater a Truth-Seeking Orb's density or mass, the greater the volume it could theoretically expand to. Thus, combining thousands of small Truth-Seeking Orbs allowed the resulting orb to expand to an utterly absurd size!
But the principles underlying the technique meant that it was still not a genuine "Expansive Truth-Seeking Orb"!
That was why Naruto had deliberately distinguished it, highlighting a style unique to Naruto Uzumaki!
-My Style: Expansive Truth-Seeking Orb!
Boom!
Before the palms of Naruto's Beast Calamity, the Truth-Seeking Orb expanded rapidly. The yin-yang lightning before the palms of Sasuke's Susanoo began to fade, and within seconds, the orb swallowed it completely!
Crack! Crack!
The arms of Sasuke's Susanoo began to disintegrate, starting from its palms!
Pitch-black terror swiftly filled his vision!
"!" Sensing danger, Sasuke drove his Susanoo backward, but the Truth-Seeking Orb expanded even faster. In the blink of an eye, its surface touched the armor!
From a distance, Sasuke's Ultimate Form Susanoo