There are still many unsolved mysteries:
What is the role of Zetsu? Why and how was Tobi (I'll keep calling him that, i mean, he himself doesn't care what we call him, why would you?) able to grow new limbs? How is it possible that he is just as powerful, if not even more powerful than Madara? Because seriously... that guy can use his Mangekyo Sharingan all the time and he's never tired. Also... what's with the risk of getting blind? Is Tobi immune to it??? And come on... he can use the Rinnegan for SO6P's sake and even control all those Jinchuurikis with their Bijuus. Obito has such high chakra reserves???
And seriously... what's up with these:
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