Well I searched around and I dont think this was suggested so as you can see in the title wager matches. Basically you make or join a match and place your bets, and obviously free for all.Max coin to bet on is probably 20. Once the game starts the bets are locked. So if you try to be smart and leave you will automatically lose the amount of coins you bet. Once you won 3 wager matches in a row you get an achievement and 1 coin. When you win 5 wager matches in a row you get 3 coins.