It's pretty obvious that the Typhlosion isn't the problem, yet you can't seem to get to the Narrator by any physical means.
In light of this, there are two "viable" options at this point. First one is to get that gigantic Gengar to assist you. The second one is getting the goddess Tabiti to assist you. Either way, they can operate in the same plane as the Eldritch Mewtwo (I think).
Either way, you're probably best off getting help. Sacrifice Elm as well, if need be. He's officially not awesome at about this point.