New Game mode

I think their should be a new permanent game mode where you can play basically any champ on the roster, but it chooses for you. specifically it should be a game mode where you play 5 v 5 prob on twisted tree line, and you can play any of the champs that you don't own or on free rotation so that you can get a feel for other champs and learn how to play them. since the new update to solo queuing and whatever is coming out we can make it to where he champs that are suited for top or jungle can be part of the options that it'll choose.