If Shisui was on uchiha with ka mind control how did obito control yagura for so long. Another thing ka drains chakra fast so how did obito do it for so long!? If it was just obito. Don't say he had Shisui's eye because Shisui's eyes don't have kamui obitos favorite jutsu can someone explain this please?????
What he means is: "If Shisui was the only one amongst the Uchiha who could mind control people, how did Obito control Yagura for so long? Another thing is that it mind control drains chakra quickly, so how did Obito maintain it for so long? If it was Obito. Don't tell me he had Shisui's eyes, because Shisui's eyes didn't have Kamui, which is also Obito's favorite technique, could someone explain this please?"
The thing is, that you've seen like every Uchiha control someone before, it's called Genjutsu.
It's a fact that Shisui's was the most strongest among the others, but that doesn't exclude that Obito could've done it aswell, and also, as we're aware of, Yagura was a braindead person.