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Also, even the base level on Sharingan gives precognition, which would spoil this strategy.
Sadly, we have no idea if Itachi can keep that up 24/7 or not.
I am 99% confident he cannot. The Sharingan doesn't drain as much chakra to have active if you're an Uchiha but it does drain some. For someone who already notoriously doesn't have enough chakra for his expensive build, having this up nonstop would not be an ideal use.

Also it's very minor precognition right? Gives your physical skills a nice little bonus but it's not like you can Contessa everyone.
 
I am 99% confident he cannot. The Sharingan doesn't drain as much chakra to have active if you're an Uchiha but it does drain some. For someone who already notoriously doesn't have enough chakra for his expensive build, having this up nonstop would not be an ideal use.
Right, but I'm not sure how much of his daily chakra generation it uses. I suspect that whenever his chakra is mostly full, he'll just turn on sharingan until it runs down to 90% or whatever.
No sense leaving your alertness buffs off if you don't have another use for that chakra today. And staying alert to protect Nagano's resurrection probably beats training at 0.000729 stagnation.

I recall that canon Itachi seemed to always have it active, but I don't know how much I should anchor on that, other than to say it's a possibility. Much more surprising abilities have made the Canon->MfD transition intact, like Deidara's SC and Konan's "Kami no Shisha".

Yeah, it's more akin to a nerfed version of Mistborn's atium than Path to Victory.
Which is plenty to counter RERs. If he sees that the zone is about to explode, he'll activate all his dodge buffs and explosion counters(he shares a team with Deidara and Konan, he has at least one), and/or use a movement jutsu to superjump out of the neighborhood.
 
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Which is plenty to counter RERs. If he sees that the zone is about to explode, he'll activate all his dodge buffs and explosion counters(he shares a team with Deidara and Konan, he has at least one), and/or use a movement jutsu to superjump out of the neighborhood.
Why would he have it up while traveling? He can't have it 24/7. So you're assuming he just randomly has it up at a perfect time to see RER being activated?
 
Right, but I'm not sure how much of his daily chakra generation it uses. I suspect that whenever his chakra is mostly full, he'll just turn on sharingan until it runs down to 90% or whatever.

Another possibility is that if there's an upkeep cost but not a startup cost, he'll presumably flicker it on periodically. If something like a multi-zone explosion is dimly visible a minute in the future this probably counters us, otherwise it has only a very slim chance of helping against the explosion but does mean we need to not be sharingan-detectable while setting up

...Can he still use the non-mangekyo version? If he's stuck with the one that causes brain damage, he'd want to use it as seldom as he can get away with, which makes the whole thing much less worrying.
 
...Can he still use the non-mangekyo version? If he's stuck with the one that causes brain damage, he'd want to use it as seldom as he can get away with, which makes the whole thing much less worrying.
I *thought* that Mangekyo meant that you could use the normal one basically for free, but can't find a source, so IDK.

Also unclear if just having Mangekyo active is harmful, I thought it was activating the Mangekyo bonus powers(tsukiyomi, ameterasu, etc) that blinds you.
 
I *thought* that Mangekyo meant that you could use the normal one basically for free, but can't find a source, so IDK.

Also unclear if just having Mangekyo active is harmful, I thought it was activating the Mangekyo bonus powers(tsukiyomi, ameterasu, etc) that blinds you.
Also: Marked for Death. So canon knowledge is questionable. Otherwise, we could pull a Canon!Naruto and TH jutsu in the middle of combat :V
 
We absolutely do know that he can't do this. It costs too much chakra. He can use it for ~minutes with little issue but ~hours is a problem. He won't have it up unless he's suspicious of trouble.
Source? I'm pretty sure we don't, in fact, absolutely know this.

We don't know the Chakra requirements for normal sharingan, let alone Itachi's situation.

I think the closest we have to this is the one time Neji estimated his Bayakugan uptime way back in chunin exams, and that's a decent baseline guess for normal Sharingan, but Itachi's eyes are very different.
 
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We don't know the Chakra requirements for normal sharingan, let alone Itachi's situation.
Just searched the thread, and Sasuke ran through ~all of his chakra using normal sharingan during a meeting with Hiashi in Chapter 277. Not if they QMs actually figured out sharingan costs for that, not sure how mangekyo affects it, not sure how big his reserves were.
 
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Source? I'm pretty sure we don't, in fact, absolutely know this.

We don't know the Chakra requirements for normal sharingan, let alone Itachi's situation.
If you lack a Marked for Death textual citation for the claim "Itachi can have the Sharigan running 24/7" then I think it's unreasonable to turn around and ask for a textual citation to disprove your claim. If all we're discussing is vibes-based theories, unrooted in the text, then your claim is equally valid and equally invalid as any other.
 
I *thought* that Mangekyo meant that you could use the normal one basically for free, but can't find a source, so IDK.
Hmm you might be thinking of Eternal Mangekyo Sharingan? If you get a relative's eyes, ideally a sibling, using your MS abilities no longer blinds you and it reduces the drain of having the Sharingan active (though, as far as I know, still doesn't nullify it entirely.)
 
If you lack a Marked for Death textual citation for the claim "Itachi can have the Sharigan running 24/7" then I think it's unreasonable to turn around and ask for a textual citation to disprove your claim. If all we're discussing is vibes-based theories, unrooted in the text, then your claim is equally valid and equally invalid as any other.
I understood Left-Hand Mutant to be claiming, not that Itachi definitely can have the Sharingan running 24/7, but that he might be able to and that we should be concerned about the possibility.
In the absence of evidence on whether he can do so, I think that worrying about the possibility is more correct than dismissing it.


However, we do have some evidence, such as Sasuke not being able to run a normal sharingan for the whole duration of a meeting.

Also, in Chapter 335, I think we see Itachi activate his sharingan (although he might've had it on from the start and just made it glow for intimidation later?), which would tell us that he doesn't keep it active at all times, or even keep it active at all times when in the field.

The Sharingan required constant sacrifice; Sasuke could feel the chakra draining out of him like blood from a gut thrust, but he refused to deactivate his bloodline. Its enhanced peripheral vision allowed him to see Sadao's hands were folded around his tea in Position #1: 'Take the lead but don't move too quickly so that I have room to cut in if needed.'

Sasuke raised an eyebrow. His reserves were nearly empty, but he clung tight to the Sharingan for a few moments longer, casting off some of the less vital layers in order to stretch out its duration. "What did you have in mind?"

He crossed his arms as an immolating red light blazed into existence in his eyes.

"Persuade me."
 
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Source? I'm pretty sure we don't, in fact, absolutely know this.

We don't know the Chakra requirements for normal sharingan, let alone Itachi's situation.

I think the closest we have to this is the one time Neji estimated his Bayakugan uptime way back in chunin exams, and that's a decent baseline guess for normal Sharingan, but Itachi's eyes are very different.

It can be sustained for a long time – minutes easily, but hours will start substantially digging into one's chakra reserves, and it can be activated and deactivated near instantaneously.
 
If you lack a Marked for Death textual citation for the claim "Itachi can have the Sharigan running 24/7" then I think it's unreasonable to turn around and ask for a textual citation to disprove your claim.
Ok, let's scroll alllllllll the way back to the top of the page:

Sadly, we have no idea if Itachi can keep that up 24/7 or not.
We absolutely do know that he can't do this

I feel very comfortable with my consistent stance of "it's plausible Itachi could have this, but we sadly I think we have almost no textual evidence either way".

I think that when someone responds to this with, "yes, actually we it is confirmed impossible do know this for absolute sure", asking for a source is extremely fucking reasonable.

I do not think I'm being inconsistent or acting on unprincipled/unfair standards of evidence, and I resent the associated implication that I've been approaching this discussion In bad faith.


Edit: @Sir Stompy thanks for finding your source, that was very helpful.

Edit Edit: @RandomOTP: On reflection, that came out somewhat intense. I'm leaving it as-is, but but please don't take it personally. You presumably just misread me, that's all. Easy honest mistake.
 
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Apropos of not much: @eaglejarl @Paperclipped @Velorien , does Hazō think he could teach someone Primordial Sealing without them having first learned Sealing? They're symmetrically related, mechanically speaking (in that higher PS buffs Sealing as well as Sealing buffing PS) and narratively they've been described as like different but related languages. Is there a reason someone couldn't learn Primordial Sealing as their first 'language'?

I'm mostly asking from curiosity, and because I'm curious if the same applies for biosealing (Kaburo is a biosealer, but isn't a sealmaster as far as I remember hearing), but it might become relevant if we find ourselves needing to propagate runecrafting; it would be quicker to teach an Earth-Element ninja a 250-XP stunt than to have a non-Earth-element sealmaster (e.g. Kagome) buy Earth Element.
 
Apropos of not much: @eaglejarl @Paperclipped @Velorien , does Hazō think he could teach someone Primordial Sealing without them having first learned Sealing? They're symmetrically related, mechanically speaking (in that higher PS buffs Sealing as well as Sealing buffing PS) and narratively they've been described as like different but related languages. Is there a reason someone couldn't learn Primordial Sealing as their first 'language'?

I'm mostly asking from curiosity, and because I'm curious if the same applies for biosealing (Kaburo is a biosealer, but isn't a sealmaster as far as I remember hearing), but it might become relevant if we find ourselves needing to propagate runecrafting; it would be quicker to teach an Earth-Element ninja a 250-XP stunt than to have a non-Earth-element sealmaster (e.g. Kagome) buy Earth Element.
It's literally a requirement for the Earth Infusion stunt. Sealing 40

Stunt: Earth Infusion
Cost: 125 XP
Prerequisites:


  • The Sealsmith stunt
  • Sealing: 40
 
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So even ignoring the fact that Itachi can't keep the Sharigan active for long periods of time It he did instantly react and buffed up he would burn through a ton of his chakra. We could then wait for his buffs to deactivate and then hit him with a squad of Mari's shadow clones plus Cannai and other summons. Without enough chakra to power his fancy jutsu Itachia isn't anything special
 
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I am aware of this. I was assuming that if it were possible, it would work by buying a different stunt analogous to the Sealsmith stunt, costing 250 XP (or possibly more), which Hazō wouldn't initially have been aware of because he was reinventing the discipline from scratch.
I see, I am pretty doubtful of this since Biosealing has been around forever and works the same way. Surely someone would have tried to train pure biosealers without wasting their XP on Sealing if they could.
 
So even ignoring the fact that Itachi can't keep the Sharigan active for long periods of time It he did instantly react and buffed up he would burn through a ton of his chakra. We could then wait for his buffs to deactivate and then hit him with a squad of Mari's shadow clones plus Cannai and other summons.
Tsukiyomi a clone and pop it. Shuts down Mari pretty hard.

She has high resolve, but the same trick worked on Naruto who allegedly has Jinchuriki super-resolve, so...
 
She has high resolve, but the same trick worked on Naruto who allegedly has Jinchuriki super-resolve
The super resolve that instantly folds to Intimidation rolls...? 🤔

Also, tangent, but I wonder if the same thing that prevents Naruto from being like other jinchuuriki (no aura, no innate skill boost, no evil possession) also means he doesn't have the usual jinchuuriki genjutsu protections and just no one ever thought to try before Itachi🗿

Probably not how it works but it would be kind of funny
 
I see, I am pretty doubtful of this since Biosealing has been around forever and works the same way. Surely someone would have tried to train pure biosealers without wasting their XP on Sealing if they could.
Had you read my post properly, you would have noticed that part of the reason I'm asking is that I suspect they have:
I'm mostly asking from curiosity, and because I'm curious if the same applies for biosealing (Kaburo is a biosealer, but isn't a sealmaster as far as I remember hearing), but it might become relevant if we find ourselves needing to propagate runecrafting; it would be quicker to teach an Earth-Element ninja a 250-XP stunt than to have a non-Earth-element sealmaster (e.g. Kagome) buy Earth Element.
Name typos notwithstanding.

We know Kabuto does biosealing (see below, though this is a Canon? interlude) but as far as I'm aware we've never heard that he's a sealmaster.
Orochimaru-sensei waved a hand. "You are making adequate progress in biosealing, Kabuto, and I will continue to supervise your growth. However, I will do no more than show you the beginnings of the path to true immortality. If you wish to walk alongside me in eternity, you must earn your path.
He could be a sealmaster without it having come up, but it seems odd. (If you remember something I don't showing that Kabuto is in fact a sealmaster, please do mention it!)
 
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