Definitely not ARAM

An ARAM alternative game mode...should have a draft pick to choose position

If you get top you get a random top laner from a pre chosen pool of "standard " top laners: Same for JG: Mid: ADC: Support:

It could be played on either a sigle lane like ARAM or even on a full may as am ARSR.

I think the structure of a pre determined team comp, but with the randomness of not know what champ you will get would be pretty cool.