Board Thread:Versus Debates/@comment-26636534-20170207144720/@comment-26104757-20170209043540

what can Taka, or more so Sasuke, actually do to harm Obito? Unless he's placed in a position where his Kamui is rendered useless, (like Konan's Paper Person of God Technique) then I don't know how Taka can kill him. Ametarasu may work if Sasuke's able to analyse Obito's time restriction, but even that's a slim chance, especially since Obito also has Izanagi to use, (which I doubt). Then again, Obito isn't very versatile, and any technique-induced damage that he can do doesn't really deal that much damage Karin can't aid herself. Suigetsu and Jugo could hold their own against Black/White Zetsu, but I don't think Zetsu can actually die.

I give it to Obito/Zetsu, high difficulty.