Itachi won't need to use MS to deal with summons. Jiraiya takes care of them the same way Naruto did, by paralyzing them with Frog Call
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and nailing them with giant rasengans
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.
Jiraiya can only target one, maybe two summons at a time with his Rasengans. During the time he's attacking them, another summon not caught within the radius of Frog Call could attack him from his rear, or Asura Path could be assaulting him with missiles/chakra cannon.
Not to mention the fact that attacking the Cerberus in that manner would just make it multiply.
Jiraiya also has a number of other ways to deal with summons, such as Goemon,
Easily absorbed by Preta Path, or blasted away with Asura Path's chakra cannon. It is also ineffective against the chameleon, which can cling to walls, the Cerberus, which would just multiply, the bird, and the Centipede, which can just burrow underground and pop up by Jiraiya's location.
Easily absorbed by Preta Path, countered with Raiton stream from Sasuke, or Animal Path cancels the summon caught in it then summons it next to her.
Requires Jiraiya to jump up in the air above said summon before using said jutsu, making him susceptible to being blasted out of the sky with Katons/missiles/Shinra Tensei. It is also ineffective against the Cerberus, which would just multiply
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.
Raging Lion's Mane
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, or just kicking them away with brute strength
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.
And while he's doing that he leaves himself open to being attacked by other summons, or missiles from Asura Path.
Chamaleon gets detected by sensory barrier
Pain can see the barrier thanks to Rinnegan. He's not going to lead the chameleon into touching the barrier. He will just make it useless by ramming into it with another summon, just like he did in canon.
or Shima's tongue
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Sasuke can cut through the tongue with
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, his own Raiton enhanced katana, or a
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. Or Animal Path can intercept the tongue with the rhino, ox, panda, or centipede summon. Or either Asura Path or Deva Path could attack Jiraiya with missiles/chakra cannon/Shinra Tensei, catching Shima in the crossfire. This is not the same scenario where SM Jiraiya was facing an Animal Path that chose to have only one offensive summon out on the field at any one time. The other Paths are there, as well as Sasuke, who has several ranged options for slicing through objects.
and can also be seen by Itachi's sharingan the same way Obito saw the Hidden Rock Ninja through his camouflage technique.
Except for the fact that he failed to do so when Nagato summoned the chameleon, had it crawl up in his general vicinity, then ambush him, Bee and Naruto with Shinra Tensei. I have exactly zero reason to believe that he was able to see the chameleon, yet still allowed that ambush to happen.
If Itachi for some reason does need to get rid of summons, he can easily use Totsuka, amaterasu, or control them with genjutsu.
Using V4 Susano'o just to bring out Totsuka (which can only seal one target at a time, and even then, takes time just to seal a human sized target) is going to take a massive hit to his stamina. As is using Amaterasu 5-6 times to get rid of all of Animal Path's summons (not counting the fact that
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and will most likely stay split up due to Pain having knowledge on Amaterasu, which means Itachi would have to use Amaterasu even more times to deal with it). Itachi needed to retreat and rest his body after using Tsukuyomi twice and one Amaterasu, and is shown
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from using it twice and a Tsukuyomi against Sasuke, yet you expect him to be using it 6+ times to take out all of Animal Path's summon arsenal?
As for genjutsu, the animals need to be looking at Itachi's eyes for him to launch that form of genjutsu, something they are not likely to do since Nagato controls them with chakra rods similar to how he controls his Paths. The mere fact that Nagato controls them with chakra rods at all makes it unlikely for that control to be superseded by genjutsu anyways.
I agree that it would be unwise for Itachi to engage Sasuke in a genjutsu battle. However, Jiraiya can counter missiles, summons, and ST on his own.
You have brought up no answers for how Jiriaya deals with Asura Path's missiles and chakra cannon, or Shinra Tensei.
Through trial and error Jiraiya and Itachi can quickly deduce Preta's ability (Jiraiya figured it out after two attacks), and then proceed to finish Preta path through Food Cart Destroyer,
Which requires Jiraiya to be in the air above Preta Path before summoning the toad. In which case, Deva Path simply blasts Jiraiya and his toad out of the sky with Shinra Tensei, or Sasuke bisects them with Chidori Spear.
Jiraiya does not have frog kata. At least, not to the degree that Naruto does.
Itachi's shuriken (which he canonically used to counter shared vision
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Because Kabuto was canonically controlling them and
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. Not to mention the fact that the chameleon was stationary, the Naraka Path avatar was immobile, and both were focused on Bee + Naruto.
, Shima poisoning him
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or Fukusaku cutting him in half with his tongue
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.
Preta Path is not just going to stand around and let himself be caught by Shima's tongue. Neither are the other Paths and Sasuke going to be just watching him get caught. Sasuke can cut the tongue with his Raiton enhanced katana or Chidori spear.
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, as could Human Path. Deva Path could attack Jiraiya (and by extension, Shima) with Shinra Tensei. The remaining summons could also attack. Preta Path himself
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just
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the tongue. Any combination of the above could and will happen before Pain allows an important Path like Preta to be defeated.
When Preta is out of the way, Jiraiya can use pure ninjutsu spam,
Which gets countered with Shinra Tensei while Naraka Path revives Preta Path (in the event that Preta is defeated).
with Itachi picking off significant threats with his oneshot abilities and using ribcage Susano'o to defend against missiles.
Neither of which he can spam due to his low stamina and the fact that Sasuke can intercept Itachi with projectile spam before he is able to use Amaterasu.
Half of those techniques you listed are close range, and not possible unless Deva uses Bansho Tenin first (which would be suicide, since Jiraiya and Itachi can just attack him from long range while they are being sucked in,
Sage Naruto, who has better reflexes than Jiraiya, was
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to
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to Bansho Tenin. Therefore I don't see how Jiraiya is using any jutsu before getting hit by any of the attacks I listed. Any of Itachi's techniques that require handseals would be too slow to perform while getting pulled by Bansho Tenin, whereas Amaterasu needs time for him to close his eye and build up chakra (which was exploited by both
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and
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), Tsukuyomi depends entirely on his opponents looking at his eyes (which I already explained would not happen in Pain's case), and Susano'o ribcage/limb variants get absorbed.
or they can use clone feints like Kakashi.)
Unlike Kakashi, they can't create clones that paralyse. The moment that clone is dispersed, Sasuke or any of the other Paths or Summons will be on the lookout for the real bodies, something that would be anticipated easily thanks to shared vision.
Chidori Nagashi isn't a counter to Yomi Numa.
Yes, it is. Yomi Numa is a Doton technique, Chidori Nagashi is a Raiton technique (which have an elemental superiority to Dotons) shape manipulated to emanate from the whole body. It counters Yomi Numa handily.
Naraka and Preta's abilities are quickly deduced and killed at the beginning.
The only way they determine Naraka's abilities is when he brings back a Path. And the only way they can kill him is by finding the chameleon, dispel it, then defeat him without Animal Path's other summons intervening, Animal Path itself intervening, the other Paths intervening, Sasuke intervening, or Naraka Path himself not trying to retreat. He is probably going to be the most well guarded Path in this entire battle, seeing that Pain tends to keep him behind Deva Path during formations. There is no way that it will be killed at the beginning, not when Pain has full knowledge on Itachi's techniques. Team one also has too many options to counter team 2's non-ninjutsu based arsenal for Preta Path to be killed at the beginning.
Kirin isn't busting V3 or V4. Itachi tanked it with a ribcage.
Itachi did not tank Kirin at all, especially not with just a ribcage Susano'o. A far inferior attack in the form of Danzo's Fuuton
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, whereas Raikage's Raiton Chop
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Madara's Ribcage and
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. Stating that Itachi tanked Kirin, which blows all of those attacks out of the water in terms of power, with only a ribcage Susano'o would be giving it a level of durability that is completely inconsistent with Susano'o's other showings, including Madara's (who has stronger chakra than Itachi), with no basis at all. Itachi is going to need V3 Susano'o at the absolute least to survive Kirin.
Then there's also the fact that Itachi did not tank Kirin at all.
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, which meant whatever level of Susano'o he used got ripped to shreds along with his jacket.
Before you say "Itachi will die from overusing his eyes", he won't die since he'll only need to use it once for a few seconds, as Kirin is a technique that can only be used once in a battle.
That is not true. Kirin can be used as long as there's
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. Seeing that Pain can make it rain in his village he can provide Sasuke with the thunderclouds he needs to recreate Kirin again, or at the very least accelerate the process.
Not to mention Yata Mirror.
Whose greatest feats are blocking a sword and some explosive tags.