Board Thread:Theories and Speculation/@comment-36512555-20200328202326/@comment-32685487-20200331001519

That was a one time thing with the 9 Tomoe, so if we agree to go on consistency then Itachi can only use Tsukuyomi in left eye, Obito HAS to make contact with somebody to warp them with Kamui and Sasuke never had 9 Tomoe in his Rinnegan.