Board Thread:Versus Debates/@comment-3965545-20150831031332/@comment-5547501-20150831103244

Konan only forced Obito's Izanagi to even come into play due to an insane amount of prep and also a unique jutsu that was good for Kamui, just like Obito's weakness would be FTG users as they have the potential ability to hit before he knows what happened.

In regards to what Obito can and can't Kamui out of, he has two different methods. He can phase through it, or he can teleport away from it. Bansho Tenin and Shinra Tensei are useless IMO as Obito likely won't be able to phase through it, but if Nagato pulls him towards him Obito will just go through and, well, Almighty Push never showed anything good. It pushed people away and, as far as I know, never hurt anyone. The most it did was trap people under rubble (Kakashi) and kill shadow clones due to their (usually) one hit thing. Obito can just phase to avoid rubble trap. Chibaku Tensei wouldn't work because as soon as a rock hits Obito he immediately gets to escape the Grav Pull to go to Kamui's dimension. If someone can actually provide an exact strategy that Nagato wins, the only way I see it happening is if Nagato somehow pulls a 5 min long jutsu out of his ass.

Obito can't really touch Nagato either, due to his wood style being destroyed and fire jutsu being absorbed. He also wouldn't be able to Kamui Nagato due to the latter simply pushing him off with Shinra Tensei. The only way I see either winning is if they catch the other off guard, however I see this to likely tip in Obito's favour due to sneak attacks with Kamui.