Unless it's just a brothers thing, but man that seems like such an easy simple explanation![]()
Well I mean he has Enton which controls the black flames(Amaterasu) so he should be able to. But even then it's kinda hard to say.
It's not odd. To this day we don't know what Madara's and Izuna's individual MS powers were and they're brothers. Sasuke awakened Amatearsu and Enton as his own MS Powers cuz that's what was in his genes. Itachi had Tsukuyomi and Amatearasu. They both had adept control over their primary MS Tech.
Kagutsuchi allows Sasuke to control Amaterasu. Itachi's Chakra signature would have been mixed with his own when he did the Transplant
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Which means he could control amaterasu produced by Itachi's chakra sig
Sauce doesn't have abs.