At the climax of the battle, both Itachi and Sasuke run out of chakra. However, Sasuke reveals that his actions up until now were only a preparation for his final jutsu. Using the powers of nature, Sasuke unleashes his new jutsu Kirin against his brother. Unable to evade the lightning, Itachi seemingly falls, but his body was guarded by a mysterious jutsu called Susano’o. His final attack repelled, Sasuke stands speechless, when a sudden abnormality occurs within him.