First of All, I'd like to make it noted that, no, zetsu does not have knowledge on itachi's entire arsenal[
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]. That already means that zetsu likely has no knowledge on aspects of Itachi's arsenal such as
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,
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,
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, or even
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. Infact, Itachi is so secretive, that white zetsu nor black zetsu had any idea he were even sick[
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][
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].
This debunks your claims that Zetsu Knows itachi's entire arsenal. When, in fact, he potentially doesn't know quite a deadly aspect of it. Itachi, however, likely has no idea what zetsu's capable of. Though, That won't be a problem, since Itachi's
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who understands one very important concept...
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Itachi doesn't need to know what zetsu can do. But, like many other intelligent ninja's have shown, he will See the tech -> Analyze it -> Understand it -> Counter it. Intelligence is a very deadly tool.
I don't know where you got this from to be honest... Zetsu's have been
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. While spiral zetsu spoke with white zetsu, to obito, he kept saying 'we', and also said '
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'. White zetsu himself says
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. Spiral zetsu has vision; Genjutsu will screw him over. Even if you attempt to argue against this, the mere fact that you're using Shinshuu means that Spiral zetsu has the host inside. The host has eyes. The host will be zetsu's downfall at the very least.
Now, you've also stated that zetsu's a sensor so he can see through the genjutsu, etc. 'Being a sensor' doesn't make you immune to genjutsu by default. Visual sensors -- sharingan and byakugan users -- need to notice the presence of genjutsu. Physical Sensors need to do the same. Being a sensor helps you detect genjutsu, but it doesn't occur instantly, or automatically. Evidence:
- Sasuke was in itachi's genjutsu pretty much the moment he stepped into the uchiha hideout[
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], yet, even with his sharingan, he only noticed it further down the line[
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].
- Hinata, possessing a byakugan, had to actively check for the presence of genjutus(can't remem where this scan is among that jiraiya v pain mess)
- Karin, arguably the greatest sensor in this manga, had to actively check for the presence of genjutsu[
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]
And there are more instances. In order for Zetsu to break the genjutsu, he must first spot it. That is the worst part about itachi's genjutsu; it's near impossible to spot within the first few seconds. A few seconds is more than enough time for itachi to kill you. To add salt to the wound, BZ, the sensor of the bunch, has been
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before.
Zetsu's have no regenerative capabilities as far as I'm away. If zetsu were lit on fire, he'd burn to ash. If he shed the burnt portion,
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, he'd simply be missing that piece of his body. Notice that when madara
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, it
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.
Zetsu is made from Hashirama's DNA; However, base hashirama has no regenerative properties[
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][
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]. Yet, madara said hashirama
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regenerative healing. How is that, then? Because hashirama
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. It's no coincidence madara, who was rocking hashi cells all along, suddenly begun to heal once he stole sm.
In short, If itachi lights zetsu's foot, and zetsu sheds it off, that foot is gone. Amaterasu disintegrates it, and zetsu's now a cripple.
Living Itachi has no problem holding up a susano'o for a prolonged period. In fact, it's entirely likely that he can hold up his susano'o for near as long as sasuke held his up against danzo. Let's look at it.
->
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. Even sasuke, 1 point higher in stamina
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-stamina is converted into chakra, so sasuke essentially has more chakra.
-> Ontop of this, Itachi's
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. This already means itachi's riding at his lower than lowest point in life...
-> Itachi then goes on to
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after popping a ribcage to survive kirin.
So, Quick recap. Itachi's Out of chakra. Itachi's Blind.
Let's continue...
-> Itachi then goes on to hold up V2/v3(highest level/most chakra intensive) Susano'o through...
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, orochimaru
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, explosive kunai spam[
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][
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], his
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, and even
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.
Let's go back over that last one. Watch closely. Itachi touches sasuke,
susano'o's still active, he then collapses. Susano'o
then disperses. That means, at time of death, itachi
was not out of chakra; but, instead, as tobi even stated, itachi poured is remaining stock into sasuke, basically committing suicide. For reference, Sasuke
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, yet itachi maintained a V2 susano'o? One level below max of his most chakra intensive and body taxing technique. All this done by a blind guy who was definitely riding less than 30% chakra reserves. Now, what happens if itachi were to start off with V3 susano'o, or even use it before going blind/exhausted? By the simple process of extrapolation, he'd maintain it a very long time.
As for the point about shinshuu; Yata isn't even necessary for that. A V1 ribcage tanked lightning, and a Km cloak tanked juubi sized katons; those attacks won't break V1 ribcage. Itachi simply slices every single hand off with totsuka. End of. After all, Ay was slicing the hands off while his
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.
Zetsu 'clone clones'(not ones made from the mazo, but from zetsu himself) aren't
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They're just distractions.