I want to beat my boyfriend. Boyfriend says he's going to use Greninja, Garchomp, Scizor, Sylveon, and Jolteon; possibly Mewtwo for the sixth slot but he doesn't know.

I've never really put together a real team before and have been doing some research. I really want to use Mega Charizard X, Scrafty, and Archeops, and was kind of interested in Bergmite with an Eviolite as well as a Malamar with Trick Room for his Garchomp. I'm not sure what would be a good thing to get rid of fairies (Excadrill?) I think Charizard can take care of Scizor and Jolteon, so that leaves Greninja (not sure if he's going to use Protean or not) that I am also unsure of how to defend against.