Board Thread:Naruto Discussions/@comment-28252336-20160617192512/@comment-5407586-20160617194900

Anyone with even just one of Obito's Mangekyō Sharingan and enough chakra to use it would become Kage-level, that's how powerful Kamui is.

That being said, Minato's chakra levels are rather high so he might be able to withstand one Sharingan, but two seem overkill for any non-Uchiha without Senju/Uzumaki DNA.