You could try a Mewtwo deck or some other Psychic deck (Wobbuffet and friends perhaps) with Dimension Valley, but I'm not too sure what similar Standard decks there are.
He is a big fan of M Mewtwo Y, when I brought up the Mewtwo deck. I might put together a proxy M Mewtwo/Bronzong deck to see if he can understand it. It he can get the strategy for this I am pretty confident he can play most of the decks running in standard and expanded right now. Thanks for the idea.
I have never played Land Bats but maybe try Raichu Bats. It seems to be a simple deck that can hit hard. It also has a relevant type due to so many electric-weak Pokemon like Lugia, Yveltal, M Ray. And it uses bats which he's obviously had experience with! Another simple deck would be Gengar Trevenant. Those are my suggestions but I'm not exactly sure of the play style you want.
I think he could run with something like Raichu Bats. Also when I looked into it seems like Lucario/Bats and Man/Bats or BatMan seem to be pretty popular and play a lot like Landy Bats. He will have a lot of great options to try out and run with now.
I am running a Yveltal/Zoroark/Gallade deck. So he will definately get good practice with any of these decks against mine. Once again thanks for the ideas.