His Rinnegan bled as he attempted to use Amaterasu which is a sign of strain. Previously, he could use Amaterasu without his eyes bleeding when he could use his eyes properly:
You must be registered for see links
Of course, his eye bled in several different portions of his fight with Kaguya as he continued to use his Rinnegan more and more despite just awakening it, but when at full power, his eyes won't bleed at all which is a sign of lack of strain.
And regardless, the little bit of chakra Sasuke could muster into his Amaterasu is only going to add a minimal amount of strain at most, so it makes sense that he couldn't properly control his Rinnegan at that point, not to mention that he expended a lot of chakra just utilizing Indra's Arrow and resisting the explosion which is going to cause his chakra to tank.
Using Mangekyo techniques in general causes strain, not just Amaterasu. [
You must be registered for see links
], [
You must be registered for see links
], [
You must be registered for see links
]
Also touching on the "when at full power his eyes won't bleed at all showing a lack of strain" That's not true because EMS Sasuke despite having maybe a weeks worth of rest still bled when using Amaterasu against Kabuto. [
You must be registered for see links
]
And wasn't denying that Sasuke lost a lot of chakra. Obviously he did since after the clash he was only able perform 1 Ama, and then could only use his 3T and a Chidori that fizzled away. I'm arguing that the strain
did not affect his vision Other than having 1 eye closed as I said in my last post. Not to mention Sasuke was using Mangekyo techniques (Susanoo, Enton, Amaterasu etc) with his new EMS just a day prior with no drawbacks.
Focusing as properly having your vision focused on your target and properly controlling the flames. He could not focus the flames properly which is a requirement for Amaterasu's ignition. He spawned it, but Amaterasu never ignited. Naruto wasn't consumed by Amaterasu because of reasons I stated before and the fact that his chakra was potent enough to resist it due to having Kurama's, Ashura's, and Rikudou's chakra, but Enton and Amaterasu can both plow through powerful chakras such as Raikage's Raiton Armor (which acts as a shield) and the Juubi itself. It makes no sense what you guys are arguing anyways. EMS Sasuke's Enton can cause the Juubi to yell in pain and his Amaterasu alone forced Juubito to block it with his TSB yet Rikudou Sasuke can't get through a simple V1 Cloak from Rikudou Naruto? Does that even make sense to you guys?
What? Focusing the flames is not a requirement for Amaterasu igniting. And controlling it is done through
You must be registered for see links
. Amaterasu ignites whatever it touches. [
You must be registered for see links
] and thats supported by the manga.
Also are you trying to downplay War arc Naruto's V1 cloaks? Naruto gave cloaks out to the entire remaining alliance iirc and they were able to withstand the V2 juubi's
Tenpenchii before disappearing. [
You must be registered for see links
]
They're obviously
not the same as the V1 cloaks Naruto used in the past. Also not quite sure why your arguing as I said earlier
Amaterasu didn't make direct contact with Naruto since he blocked it. Obviously if it hit, it'd hurt BUT IT DIDN'T. Ama (Enton) also Failed to burn Gaara's gourd sand.[
You must be registered for see links
] And also Naruto's V1 cloak which it couldn't get through either. So whats the excuse there?
Sick Itachi's whole purpose was to catch Sasuke in his flames. Sick Itachi struggled keeping track and focusing the flames on Sasuke because his vision deteriorated. But still, Kakashi's example is still relevant and there's no way to argue against it.
Rikudou Sasuke is far superior to Sick MS Itachi or Kakashi, but that only means that he'd have to expend more chakra to get to that point, but using the Rinnegan itself consumes a lot of chakra, esp. for someone who hasn't adapted to it yet, so that point is moot.
EMS and Rinnegan do not lose their light, but that does not mean their vision cannot tank due to depleting their chakra and overusing their eye.
It wasn't
only because his vision had detoriated. Itachi's poor health and Zetsu's statement directly after the fight made it clear his illness hindered his performance as he fought to stay alive long enough to fight his little brother. [
You must be registered for see links
]
Kakashi's example is still a bad example as he'd been using Kamui ever since the start of shippuden. And transplanted Sharingan's give far more strain.
Rinnegan costs more chakra yet he used a mangekyo tech. So not bothering with that.
And I already agreed that his vision suffered a bit via only having 1 eye to go by for the rest of the fight. But I'm still finding it hard to believe his vision tanked from overusing his MS techs or Rinnegan. After all Sasuke said he just couldn't use his left eye anymore due to not having enough chakra at the time.