people are always claim they are better then other players; so why not create a mod that allows them to wager leaguecoins on it?
for example: 2 players will decided on the amount they would like to bet before the game and those coins are sent to a 3rd party to hold the coins. once one player beats the other, the coins are sent to the victor. same principle for 3v3 teams and 5v5 teams as well.