It's like an elimination mode actually, but there's no ganking.
It consists in the following thing:
There are 4 1v1 taking place, when one of the two dies, a bridge opens to reach the next area. There the duel takes place. In case of being from the same team. The other zone is expected to finish its 1v1 and once it is finished, the final 1v1 or 2v1 is done in the central zone.
So basically it's an elimination mode where u have to fight 1v1 until u end, like a tournament to see who is better but with teams actually.
U could inspire some themes like Colliseum or something like that.
Give ur opinion players!