2.5 stamina in DB3, which covered the time period when Itachi had a disease-ridden body, but...
Sick Itachi was FAR from his norm. Zetsu thought he was BADLY injured before arrival.
Itachi used his Mangekyō jutsu as a kid.
Average ninja stamina could barely use normal fire jutsu at that age.
He could use multiple (3) Mangekyō jutsu in a day with less than half his chakra.
Kisame thought Itachi had plenty left in him, too.
(How convenient for Konoha, Itachi!)
Itachi could use well over 7+ Mangekyō jutsu when Kakashi could only use 4 Chidori.
(Hiruzen could only use a few jutsu, etc. Scaling was different back then.)
By part I scaling, even Jiraiya was fatigued after encountering him:
Sick Itachi was FAR from his norm. Zetsu thought he was BADLY injured before arrival.
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Itachi used his Mangekyō jutsu as a kid.
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Average ninja stamina could barely use normal fire jutsu at that age.
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He could use multiple (3) Mangekyō jutsu in a day with less than half his chakra.
You must be registered for see images
Kisame thought Itachi had plenty left in him, too.
(How convenient for Konoha, Itachi!)
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Itachi could use well over 7+ Mangekyō jutsu when Kakashi could only use 4 Chidori.
(Hiruzen could only use a few jutsu, etc. Scaling was different back then.)
You must be registered for see images
By part I scaling, even Jiraiya was fatigued after encountering him:
A fresh part I Itachi had stamina more comparable to Jiriaya than Kakashi...VIZ said:Jiraiya: Humph. If you go now, you'll just be killed...There's too much of a gap between you and them. I mean, it even took me a huge effort just now... to distance them from you.
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