3v3v3 (Triangle map)

I know that its usually Noxus vs Demacia? But what if you added in a rogue element into the league? a 3rd Force that would stand against the other 2! ( Only posted this cause I saw league of legends was influenced by WARCRAFT 3 a game I used to play. In that game on the Battle.net there was games that had 3v3v3 hero arenas and they were the most fun I had in that game would love to see it added to LoL perhaps the 3rd force could be people who want to stop the constant fighting that is the League of Legends) Just a thought