@Grumpyfelo
One, that Moltres doesn't belong to Ash as far as I know, but we got to wait before that is touched upon again to know for sure how that was settled.
Two, Ash wanted to show off how much stronger his Pokemon got over time, plus Infernape almost gets a power boost when battling against Paul. Heck, with his insane Blaze ability, I am pretty sure it's A Game material. Besides Ash already used Mega Charizard a bunch earlier on so he is just shifting his team around like any league. In short, it was Infernape's turn, at least in my opinion.
Three, I wonder how Akiko is going to touch upon the Ash Greninja stuff now that you mentioned it?
Four, thank you for not holding back your opinion and being honest with me. That sort of thing makes uploading this series feel worth it since i can share other people's experiences with it.