If Sasuke had stayed above and seen Uchiha Itachi spitting blood, he wouldn't have used this move.
But unfortunately, even if Sasuke had stayed on the ground, Uchiha Itachi might have tried his best to hide his fatigue.
This move was originally a technique developed by Sasuke for sparring with Uchiha Itachi. Although he was taught by Uchiha Itachi, habits are hard to change.
So Sasuke still relied on a new technique developed based on the Chidori. Uchiha Itachi had only mentioned this idea to him before.
In fact, all types of Chakra have a certain connection with their surroundings, but the one most affected by this connection is probably Water Style.
After all, with water and without water are almost two completely different effects.
It's like how people from Kirigakure might be several times stronger if they stay in the Land of Water, but become weak easily when they leave.
There are many places with wind, mountains, and earth, but not every place has water.
Of course, Kirigakure has a higher output of kekkei genkai, so their people don't solely rely on Water Style.
Other Ninjutsu might be related, but they aren't particularly restricted by the environment.
"If the temperature can be raised quickly for a short time, creating thunderclouds in the sky, then even if Chakra is depleted, there's a chance for a comeback."
"But if it rains, the fire might be extinguished before attracting lightning."
"If not controlled well, it won't attract lightning, but water."
At this point, Uchiha Itachi could barely remember when he said this.
He did discuss this issue with Sasuke, but it was just an idea, as the requirements were too harsh.
Or rather, it was a Ninjutsu that was almost impossible to achieve.
If the temperature isn't reached, you might just waste your Chakra for nothing, which would be a total loss.
So they didn't research it further.
However, what Uchiha Itachi didn't know was that his younger brother had another consideration.
The activation of this Ninjutsu had a significant possibility, or rather, it was nearly impossible for him to activate it alone.
But it sounded really cool.
Although the basic possibility was rejected from the start of their discussion, Sasuke didn't give up. Instead, he thought about another possibility.
That is the possibility of cooperating with Uchiha Itachi.
This Ninjutsu wasn't developed specifically to defeat Uchiha Itachi.
Instead, he hoped to stand on equal footing with Uchiha Itachi.
Simply put, he hoped that when undertaking missions, he wouldn't be an observer but could truly stand by Uchiha Itachi's side, cooperate with him, or help him.
So, while developing this technique, Sasuke secretly included his brother's abilities in his calculations.
A fire that wouldn't extinguish to provide continuous heat, thereby maintaining the state of attracting lightning.
At that time, it was developed just to stand on equal footing with Uchiha Itachi. Because the activation conditions were rather strict, Sasuke rarely had the chance to activate it.
However, since it could be used as an independent Ninjutsu, Sasuke could also attract lightning without relying on Uchiha Itachi's Ninjutsu.
If you had to say the difference, it would be that the effect size and duration would be partially affected.
"Boom!!"
The ground where Uchiha Itachi was crouching suddenly cracked. He quickly wiped the blood from the corner of his mouth and retreated repeatedly.
The ground was shattered by flames erupting from below. Dust flew everywhere, and a huge cloud of smoke covered the entire roof of the building.
The scorching flames seemed to rise from the ground with no pattern.
If there was an objective, it could be predicted. This almost random attack seemed to be useless.
Under normal circumstances, this attack would be insignificant, but Uchiha Itachi was already struggling to stand up. Despite retreating to the side, his arm was still burned by the flames erupting from below.
"Ugh… dangerous."
Zetsu, who was only peeking his head out from the side, was also affected by the situation. The ground in front of him kept shattering.
But the shattered ground didn't collapse. Instead, it kept pushing upwards.
Two large pitcher plants tightly protected Zetsu's head. He was originally only showing his head for stealth, but now almost his entire body was exposed.
These two brothers' fights are really all-out attacks. Everything nearby has to suffer along the way.
Zetsu grumbled inwardly while using the pitcher plants to protect himself as he retreated.
Since Sasuke used the Gou Ryuu Kageki (Great Dragon Fire Technique) from underground where they couldn't see, they weren't sure how much collapse would occur.
Uchiha Itachi looked up slightly in the smoke. Has the sky gotten dark?
He didn't know if it was due to the smoke or if the sky had truly darkened.
Even though he could only see with one eye, Uchiha Itachi could vaguely sense that the surrounding environment seemed to be getting dimmer.
His arm still had a dull burning pain, but compared to the pain in his eyes, this burn was nothing.
"Drip."
One or two raindrops fell on the ground. Dark raindrops spread on the ground.
Uchiha Itachi was stunned for a moment, then drizzling rain began to fall from the sky, landing coldly on his face.
"Ugh, what is this stuff?"
"Why has the sky turned gloomy?"
White Zetsu's face was shaded by leaves. His yellow eyes looked up at the suddenly darkened sky.
Ninjutsu is Ninjutsu, but Ninjutsu that affects the weather like this is a bit too strange.
"Because the temperature on the ground rose..."
"Was the target of those flames from the beginning not Itachi, but the sky?"
"By suddenly changing the surrounding temperature, clouds formed in the sky, thus attracting lightning."
Black Zetsu's gaze fell on the surrounding raging flames. This technique probably even factored in Uchiha Itachi's Amaterasu.
As the temperature continued to rise around, the thunderclouds above would continue to accumulate, doubling the humidity of the surrounding air.
Ordinary flames would easily be extinguished in this humidity and wouldn't form such a large-scale offensive Ninjutsu.
But with Amaterasu's continuous heat addition around, it's hard to say what the outcome would be.
White Zetsu still frowned in confusion.
"What… so, does that mean even the thunderclouds are now obeying Sasuke?"
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