Board Thread:Versus Debates/@comment-43403813-20190805194702/@comment-9782468-20190808224724

The Rinnegan allowed summoning to a dimension accessed by the Rinnegan; there's no correlation to Kamui. So I still see no indication that the Rinnegan allows summoning in Kamui.

Obito was sure that if he teleported Minato, he would win. Obito knows FTG, and still believed he'd win. So FTG can't get out.

Also, I haven't seen the Pain fight in awhile, but I'm pretty sure the Animal Path always used hand seals to summon things. So it still needs hand seals.