Board Thread:Versus Debates/@comment-33308438-20180614101055/@comment-26636534-20180704123716

@Combat

Itachi didn't react to the lighting, he predicted it (Obvious prediction to be honest). The sharingan has perceptive and predictive capabilities. Sasuke even gave a whole expose on Kirin, with hand movements. Furthermore, Itachi saw Sasuke's lightning chakra shoot up to the clouds and saw the natural lighting forming. Hence the whole predicting of Kirin.

Now, Itachi couldn't move, so he's only option was to block it with Susanoo. It's not hard to see when you break it down, but please don't try to say that Itachi reacted to lightning. That didn't happen.