Amuro

I guess I was trying to figure how obito learned what he learned in such a short time. I was thinking about it and thought it wouldn't be that far fetched...Like naruto learned kage bushin a forbidden tech (I'm nt sure of the rank) in one night. I know he has a lot of chakra but 1 night and he's kind of a dumb ass. According to what I've just learned naruto also MASTERED sage mode, kyubii mode, raseshurikin, tailed beast mode (same as kyubii?) frog kata, and I'm probably forgetting some in 9 months to a year. Sasuke also learned a lot in that time. I'm not sure about the rest of the rookies naruto and sasuke are main characters so u gotta factor that in there "special"

My point is if obito met someone (like madara) he could have learned the bijuu extraction jutsu, the jutsu he used to take the kyubii out of narutos mom and the barrier tech used on the gedo statue in a few years. Controlling the kyubii is automatic iirc wen u have ms so no real skill there if that's the case right? Plus the sharingan aids on learning Justus iirc can't remember. Regardless of his "low ranking" ninja status. His eye tech is ridiculous but it probably took him only a couple years to master it. I figure once he understood it or it was explained (with help frm someone) it made him untouchable (lol pun intended). Obito hasn't really done anything else..

2 cents!