Quote Originally Posted by Y View Post
It's really funny that there is absolutely nothing special about the genjutsu Itachi just used except that it works on somebody important. This is exactly what any genjutsu at all should be able to accomplish, and yet Itachi is sacrificing his eye (his immortal undead ghost eye) in order to trap Kabuto in it.
I think that in order to fall for a genjutsu you must look at the caster, Izanami breaks this rule and that`s what makes it special.