So count all the instances were Kishi broke an absolute rule he set previously a.k.a. BS
Lets see how many we can remember(working my was backwards).
1. Spiral Zetsu using (lesser) 1000 Hand Buddha: he may be different to the other 10 000 zetsus but he is still a zetsu, neither is able to use any nature release jutsu. And if Spiral Zetsu was there all along then why didn't obito use him?
2. Madara's Plug-n-Play eye: we saw Kakashi needed a medical nin to help with removing and implanting it, Sasuke was out for some days and had a blindfold, can't say anything about Obito's rinnegan.
3. Madara's Susano'o: It is a dojutsu, it requires not one but two MS eyes, neither kakashi nor Obito have, both itachi's and sasuke's susano's vanished when they lost sight.
4. Sasuke having PS: after getting EMS he spontaneously manifests Complete Susano'o... and then minutes later manifests PS after only hearing about it.
5. Minato having KCM: died a minute after sealing Kurama and was running 10min(assuming) after getting revived so had no time to train plus the time he was sealed doesn't count since neither Hashi nor Tobi knew who he was yet they were sealed together
will post more if I got the energy or you could add yours...
Lets see how many we can remember(working my was backwards).
1. Spiral Zetsu using (lesser) 1000 Hand Buddha: he may be different to the other 10 000 zetsus but he is still a zetsu, neither is able to use any nature release jutsu. And if Spiral Zetsu was there all along then why didn't obito use him?
2. Madara's Plug-n-Play eye: we saw Kakashi needed a medical nin to help with removing and implanting it, Sasuke was out for some days and had a blindfold, can't say anything about Obito's rinnegan.
3. Madara's Susano'o: It is a dojutsu, it requires not one but two MS eyes, neither kakashi nor Obito have, both itachi's and sasuke's susano's vanished when they lost sight.
4. Sasuke having PS: after getting EMS he spontaneously manifests Complete Susano'o... and then minutes later manifests PS after only hearing about it.
5. Minato having KCM: died a minute after sealing Kurama and was running 10min(assuming) after getting revived so had no time to train plus the time he was sealed doesn't count since neither Hashi nor Tobi knew who he was yet they were sealed together
will post more if I got the energy or you could add yours...