Dueling System

Have you ever left a game after being flamed by a toxic player who wants to "1v1?". Or plot twist you are the toxic player. Well I feel having a dueling system is a lot more efficient than setting up a custom game that random players join (if you don't put a password). You'd also be able to duel players you don't have immediately added to your friend list. A ranked dueling system might be cool as well. Just my 2 cents.

I know this might be hard to incorporate to set up another queue but I guess it would improve quality of life or add another exciting gamemode.