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Here itachi says that izanagi was the perfect uchiha eye technique, he says nothing about extra reqirements and during the whole chapter he doesnt mention senju dna, but he is speaking of the uchihas using it, and he uses the word 'you' the whole time, which generally implies that any Uchiha could use izanagi.But this debate is going on for too long now, we cannot convince each other, you think I'm stupid, I think youre wrong.