I'm currently building a team for competitive use. I want to use the ingame matchmaking of the Pokémon XY games (Battle Zone).
I know Pokémons can be banned for reasons, therefore I didn't build a legendary into my team. But in unranked games (never tried ranked before) I often see them. As it's unranked, I use this fact as an excuse, it's a fun mode. But are they actually banned in ranked?
I know there is a Tier list for XY on Smogon, but I guess it doesn't cover the ingame matchmaking.
Are there Pokémon banned in ranked matchmaking and if so, is there a list of Pokémons/items/abilities listed to look at?