True, the point of it all is nobody would attempt it in battle, unless of course you're an immortal and have a EMS-wielding beast next to you....Yes it's part of his arsenal, but Kishi prevented him from using it in an actual fight (battle to the death), Itachi said it can't really be used in an actual fight, who made him say that? Kishi, and the manga belongs to who? Kishi again, you can't defy him lol, it's his manga, if he says Izanami can't be used in an actual fight, then it can't be used in an actual fight.