Please show me the 4th data book if possible. You say that Nagato is listed as the sole user, but that is because he is the only one who actually used those techniques as apart of his main arsenal (not because he is the only one capable).
Oh so now you're giving excuses? Because you literally just said that nagato wasn't listed the sole user but now you're saying it's because he's the only one that showed it. Just stop, you were wrong before and you're wrong again.
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The fan translated version for each of these techniques all said that it's the power of Rikudou Pain. Go google search all of the pain jutsus and you'll see that I'm right again.
Also, I keep telling you: The data books are not comprehensive. They don't list everything that a character can do. They just list prominent parts of the character's main arsenal (the parts that the character predominately uses in the manga). Sometimes the data book just flat out omits things. Does that data book list Madara and Sasuke as users of shadow clone jutsu? Well, we've seen them using it. Heck, the data book doesn't even list truth seeking balls as senjutsu or list the bijuu chakaras as being apart of six paths sage mode. The data books aren't the be all end all "if it's not there, you can't do it" source
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No you didn't tell me and the bottom part is wrong. bijus chakra individually is not Six path sage mode and the
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among other things I could correct in this statement is wrong but you get my point.
If you want to talk manga, then they're all called six path of pain jutsus and no one has shown any feats of using them besides Nagato.
So you're just digging a bigger hole for yourself here
Also, the time with the bijuu/jinchuurikis isn't the only time when it was implied that Obito could use the six paths techniques. Go back to when Obito was talking to Kabuto. It was just before Kabuto gave Obito a demonstration of edo tensei. Obito outright said, "I could pull out his soul, but that would kill him". That is ningendou.
1. It's not a six path technique it's a six path of pain technique
2. No he can't otherwise why else did he say he couldn't use the rinnegan?
There is a larger issue about your stance that I really want to ask you about though. Just to be clear:
When you say that you believe that Madara/Sasuke can't use the six paths techniques... Do you believe that they are capable of learning the techniques, but simply don't know them (where as Nagato had the rinnegan since a young age and would have had time to train with the rinnegan), or are you suggesting that it actually wouldn't be possible for Madara to even learn them because it is a KKG specific to Nagato?
Six path of pain jutsus not six path techniques. The six path techniques Madara taught Obito in the cave did not stem from the rinnegan because clearly neither of them posses it. People assume that madara was talking about pain's jutsus.
Either way, I disagree with you (and so does the manga), but I could support the first premise more than the second.
Unfortunately for you everything I said and underlined to @MightGai came from the manga so the only one opposing the manga here is you and two other people. As far as manga and the databook goes, you're wrong. I didn't just make these words up, I underlined them specifically from the VIZ manga. You however have not shown a single manga page to support your speculation. You even went as far as to say that the DB didn't have any validity but somehow your headcanon does, that's just sad. I choose the words from the DB and manga over yours anytime, I really don't care about what you feel is and is not suppose to happen.
The Rinnegan is the ocular power to create your own jutsus, and we've seen nagato do that numerous times. His pain powers, rainmaker jutsu, genjutsu barrier etc came from nagato creating jutsus with the rinnegan. Sasuke even created Indra's arrow with the rinnegan.
So this pre set notion of yours on how the rinnegan powers get is farce.
Nagato having his own original techniques with someone else's eyes (that the original owner could not learn) is utter trash and absolute BS!
Rinnegan users having the same jutsus is absolute bullshit. Momoshiki was different, Nagato was different, and so was everybody else. There is nothing in the manga were it is stated that all original owners of the rinnegan can use nagato's jutsus. Just know that.
Even animal paths summoning contract has konan in it. You telling me sasuke can summon konan with animal path? Or Madara?
So just drop this garbage theory!