You can check out your betting condition by clicking “My Betting” on the World Tournament interface.
You can just bet four times: last sixteen, last Eight, semifinals, and final match. Players can also check the start and end time of each tournament in “My Betting”.
Betting items: Arena Medal
The medals will be deducted the time you bet, if you win you can get doubling medals, if you loss the medals will not give back to you.