Board Thread:Versus Debates/@comment-30966312-20180413200754/@comment-5407586-20180818191056

JohnCenaNation wrote: Yes, you need the damn moon dumbass, it was stated in the fricking manga by Madara, Kaguya even had to summon a moon from her dimension to use Mugen Tsukuyomi as well, unless you can provide me evidence where you can use Mugen Tsukuyomi without the damn moon, you can shut up with your headcanon. As I said, Kaguya's IT in the anime was filler, poorly made to boot. Madara said that to cast the genjutsu on the whole world he needed to reflect it on the moon.

In the manga, Hagoromo hinted that Kaguya combined the Rinne Sharingan and the Byakugan to cast the IT (I think she used the Byakugan to somewhat increase the range of the genjutsu, since there was no moon).

But if you really want to say that IT requires the moon, what stops Kaguya from using it on Naruto here? She can use Yomotsu Hirasaka for that. He isn't immune since he has no Rinnegan, otherwise Sasuke wouldn't have bothered to cover Team 7 with his Susanoo.