List all the times were plot has destroyed logic in naruto. A few of my favourites are
1. DMS sharingan kakashi
2. Nagato abandoning his whole ideology after a 10 minute chat with Naruto
3. Susanoo without eyes
4. A personal favourite the mask that could undo the reaper death seal which 'some guy' told orochimaru about. Ahahahaha that was truly hilarious.
5. Obito and kakashi never becoming blind after absolute abuse of the ms.
This isn't a hate thread i loveee naruto but sometimes i think its healthy to look back at some of the bullshit kishimotos fed us
Logic, you want?
well...
Kuchi to the rescue!!:hooray:
1.) A Kekei Genkei is the mixture of two chakra natures. Obito's sharingan is aalso mix of two chakra natures. Whe Obito died, he used one of the few techniques that a spirit can use: Kamui (Dan used a different one during the ninja war and Rikudou Senin can time travel, astral-project himself, and cast his own form of Edo-Tensei). His spirit went somewhere and then he Kamui'd back without the body because the spirit is made of chakra. He inserted himself, in chakra form, into Kakshi's body. Kakashi, then, had the two chakra natures that made Obito's Sharingan.
2.) Talk no Jutsu is Naruto's most powerful weapon. Even Obito wanted to learn how it works. It worked on Nagato because Naruto had room to talk. He experienced even deeper pain than Nagato, and while Nagato caused some for Naruto when He killed Jiraiya; Narto never caused Nagato any pain. Nagato's change of heart proves he had integrity, and had not lost his way. This makes sense since this is the lesson he and Mifune taught Hanzo.
3.) The eyes aren't the Kekei Genkei, the mix of chakra natures is. Madara did unlock the double Mangekyou, so he fulfilled the requirement to be abled to use Susano'o with or without his eyes (Though I don't remember anyone actually using it without their eyes, myself)
4.) Oro is a snake. He'll never tell you how he really came across that info. That info is actually useless for Oro anyway. Who would he trust with it in case he got sealed? He wouldn't be abled to use it. And if it weren't for Sasuke (the last person even he would've expected) that info would probably have never surfaced.
5.) Obito became a new host when he merged with swirly Zetsu. Either half, or most of his body now has water and earth chakra combined into the wood nature. Obito is no longer just Sharingan guy. He's Sharingan-Wood guy. Kakashi (aside from being a new host) was very careful with his and didn't even use it (in the years he's had it) as much as Sasuke, or even Itachi, did.
Bonus 1.) Sakura was in Sage mode (Byakugou, Ninja art: Creation Rebirth- Strength of a Hundred Technique, etc.) when she punched Kaguya. Remember rule number 4 for medic ninjas? Look it up.
Bonus 2.) Naruto can create Shadow clones in Bijuu form becasue Kuruma's no longer trying to take all of his chakra. The only problem before was that Naruto would die quickly having chakra drained from all those clones simultaneously. This one was easy.
Bonus 3.) Madara can shift using Kamui as a Jin because he is much more powerful than Obito. What sucks for Madara is that he became the ultimate ninja... -on his deathbead. He pretty much learned all that cool stuff when it was too late to use any of it. Sure he passed some stuff on to Obito, but he never even taught him how to use the Rinnegan. Madara is Shikamaru, Might Gai, and Sasuke all rolled up in a scary package.

Ciao.