He did what none of the dead kages from konoha (or any other village), akatsuki members and any of the other powerful ninjas kabuto summoned back from the dead could; he broke free from the summon. not even the new super-powered nagato could do that. when he was alive, he was extremely limited in strength due to his low chakra and his fatal illness. despite that, he was even in power with jiraiya; the strongest of the 3 sanin. now he is disease-free, POSSIBLY immortal and is still much smarter and experienced than naruto, bee, kakashi, shikamaru, nagato and kabuto (if you disagree, go back and see how he man-handles everyone of these or the guys stronger than these). all he needs now is a super-boost to his chakra. this guy could very well be the next super sage. if it wasnt for him, bee and naruto wouldve gotten killed for sure and used by kabuto as mere puppets. nagato was tossing bee and naruto around like rag dolls and stealing their chakra like a huge bully taking some wimpy kids’ lunch money. but in 1 split second, itachi took out 2 of nagato’s paths, chopped off his arms, ripped bee and naruto away, protected them, moved them to a safe location and burned the snot out of nagato with his mangekyo sharingan; tearing his body to shreds. not to mention that within a matter of seconds, he figured out how to bitch-slap nagato’s most powerful attack and pretty much caused it to backfire. essentially tearing nagato’s body to shreds, again. AND he was the one to seal nagato’s soul so kabuto could no longer use him. so i ask again, how strong is Itachi? and dont mention sasuke’s gay ass, he only beat Itachi because Itachi was pretty much dead at that point from his disease. not mention i have the sneaking suspicion he was holding back for sasuke’s sake. but whatever. sasuke’s a fruit cake compared to Itachi.