Board Thread:Versus Debates/@comment-5936871-20160126112547/@comment-26145872-20160211031820

Let's be realistic for a moment here. Itachi's fighting style tends to revolve around the use of dojutsu and genjutsu. As we know, the Rinnegan is indeed immune to dojutsu, leaving all of Itachi's visual genjutsu ineffective to him, including Tsukuyomi. As for Amaterasu, it's been shown in the anime that Shinra Tensei can repel Amaterasu's flames. This defeats two of Itachi's strongest weapons. While Itachi could certainly rely on his Susanoo, it would put a severe strain on Itachi due to his naturally low chakra reserves, and the fact that continued use of Susanoo would be sure to blind Itachi, much like it did to Sasuke's original eyes whilst fighting Danzo. This would certainly lead to Itachi having to eventually dismiss his Susanoo and abandon the fight prematurely, as opposed to Nagato, who was an Uzumaki, and possessed arguably the largest chakra reserve of any character without the assistance of tailed beasts like Kurama, spirits like the Sage of Six Paths, or allies of any kind donating chakra to him.