Board Thread:Theories and Speculation/@comment-26358288-20150630121218/@comment-5407586-20150630182959

Uchiahmasters wrote: that would mean Shisui had three sharingan as Danzo had one and Itachi gave the other to Naruto. Obito never had the chance to take Danzo's as Danzo destroyed it I never said that Obito might've used Kotoamatsukami or Shisui's eye. I meant that the left Sharingan that Obito hid under his mask might've had a powerful genjutsu comparable to Kotoamatsukami. Why would Obito hide a Sharingan under his mask, unless he couldn't use its powers (like how Shisui's Mangekyō couldn't be used outside of his body for more than once per decade).