Do you mean a 3v3 battle? :)
If yes, as for now we don't have a lot of playerbase to justify doing another queue for 3v3, in the future we might add it if it justifys itself. But you can already do that by yourself, you just need to have a personal agreement with the other players and do the battle with them just by using 3 pokemons each. I have seem a lot of guilds doing tournaments of that nature and seems to work out and being fun.
Best of luck and have fun playing :)
yes i mean 3vs3 battle
um sry. are you developer of this game?
i just wonder your answer is official one