Legolas was right.
His theory was finally confirmed.
BOOOOOOM…!
When his doppelganger substitute struck with all its power with the Obsidian Spear at the navel of the Titan Immortal, he observed everything that happened.
In that moment, he saw and observed a clash of opposing energies.
Ymir dust was truly the bane of the Titan Emperor's temporal abilities.
Through his energy check, he was able to thoroughly observe how these 2 very distinct energies interacted with each other.
Through his Beast Energy Extrapolation, he was able to tell that the navel was the weak point of this Titan Emperor and his attack confirmed it.
No normal attack would be able to break through the navel.
He was only able to break through the navel mostly because of the Ymir dust that he smeared on his Obsidian Spear but that was not all, it was also because of the incredible force that he was able to amass through that strike.
When the navel broke, the truth was exposed before him.
He confirmed it.