Smash bros is the best option IMO. See, pedia has the pokemon league, but that only works for XY. Meanwhile, that's also the game that a lot of pedians use for pokemon battles. Also, people smash on shoutbox all the time, so you never run out of people to fight. I guess for you it comes down to whether or not you want even more pokemon in your life, or if you want smash to kind of expand your collection some