Board Thread:Theories and Speculation/@comment-31477926-20170702121758/@comment-7292165-20170821170125

Namikazenaruto9 wrote: Well downsides are pretty apparent to me, Itachi using Shield at best gave him stalemates something which could probably be used for stalling and not winning Fights. On top of it Itachi needs the Susanoo something which is known to take enormous amount of his stamina. A person could probably kill him before he activates Susanoo... But, who said all Itachi would do is defend against attacks. He has a sword too, and Susanoo itself as a weapon.

Except Itachi was an Edo. His stamina would just replenish.

Like who could kill Itachi before he could activate Susanoo in the very small time frame it would take for it come up? None of the people he faced were fast enough to outpace his activation of Susanoo.