Board Thread:Versus Debates/@comment-44916514-20200123204114/@comment-32685487-20200208215621

It's clear that it's about the chakra color that the MS puts off when using a Dojutsu, as according to Ao while using Koto-Amatsukami Danzo's eye was radiating with Shisui's chakra.. SO when controlled Edo-Itachi attempted to use a MS Dojutsu on Naruto it activated the Crow's Koto-Amatsukami. It was the chakra that radiated when Itachi attempted a MS Jutsu(that Nagato also commented on) that activated the Crow.