Board Thread:Theories and Speculation/@comment-5413572-20150114180437/@comment-25632268-20150203120621

Why should Kaguya use Tenseigan when, according to the movie, it was pretty much inferior to Rinnegan? Nagato with Rinnegan gives Naruto a very hard time, Madara was in a league of his own and it took combined efforts of powered up Naruto and Sasuke to first defeat him and then Kaguya. And was Toneri that much trouble with Tenseigan Chakra Mode? Naruto took him down quiet fast and alone using Ninetails Chakra Mode and with Kurama being outside his body at that time (BTW, I wonder how Naruto manages to separate fox from himself, though I guess it has something to do with Kurama's yin and yang halves).

So for me, Kaguya could have Tenseigan as she probably had every possible chakra inside her, but there was no need for using it when she has more powerful eyes at her disposal.

Of course it is also possible that Toneri was simply not that strong warrior as The Last is more about Naruto and Hinata relationship than about fighting another oh-so-powerful-foe. Toneri as he is in the movie, even with Tenseigan, could not last five minutes against Kages, Bee, Itachi, Sasuke, Nagato, Orochimaru or Madara (actually, every member of Akatsuki would be too much for him to handle).