Mate of mine wants to battle me. Open level, not sure how many legendaries he's using. He has Gen 4 so I have to count out white.

/vp/, I need a team. I have a correctly trained slaking, gengar, magmortar, vaporeon, espeon, and a gallade. But shitty team is shitty. What should I change?

Have games of every Gen, just clueless on competitive play