Board Thread:Versus Debates/@comment-30966312-20180413200754/@comment-30966312-20180818073157

JOA20 wrote: JohnCenaNation wrote: Actually, you do need the moon to cast Mugen Tsukuyomi as shown by both Kaguya and Madara. Rinne Sharingan isn't enough. Kaguya used the moon only in the anime, in the manga it's unknown how she cast IT. As I see it, the moon is required only to cast IT on a global scale, while eye contact is enough to use it on individuals. There was no moon in Kaguya's time, how could she cast IT without it? The anime did a very poor filler of Kaguya's backstory, I'd rather forget about it.

To cast a genjutsu of this scale, the user's Rinne Sharingan must be reflected off of the moon.[2]