Board Thread:Versus Debates/@comment-38812954-20190930185921/@comment-43403813-20191002135802

The way I saw this particular MU (Single Sharingan Obito vs Pain) in other threads as well as this one, is that both sides can take measures to defeat the opposition, but its just Obito's measures are much more easier to achieve than Pain's.

I argued that as long as the Animal path is fine, the Animal path would be able to reverse-summon the paths of Pain from the Kamui dimension, and this ability to reverse-summon was showcased at the start of the Konoha attack.

You might be wondering whether the Animal path would be able to reverse-summon from another dimension, and a piece of evidence to provide this point with a bit of a backbone is how Sasuke was able to summon his eagle summoning in one of Kaguya's dimensions, which is much further away than Obito's pocket dimension.

To sum up, with this I think Pain would give Obito a run for his money, make the battle much more tedious and drawn out, and the only ways Pain could finish Obito would be to use Ningendo whenever Obito materialises, or to hinder him with chakra rods etc. But like I said, Obito stands a much better chance of winning because if he sucks up the Animal path into Kamui, then gg.