Brawls and Trials are game modes meant to encourage and reward hero variety! These events will run regularly, so be sure to check the in-game events section to see when one is available.
Who can survive the longest? Do the most damage? Using only Blasters? Turtles? Villains? Some trials will have different requirements, goals or difficulty... it will be up to you to prove you have the spirit of a true warrior in the face of countless enemies!
Battles & Tickets
Each player will have 10 Tickets 
at the beginning of the event. Each attempt at the trial will consume a ticket and you will battle for as long as you can with 1 hero squad. Once all of your heroes have been KO, your attempt will be over.
Tickets will replenish 1 every 10 minutes, up to the cap. There will also be options to use Gems or watch a short video to get more Tickets.
Leaderboards
Some of these events will have daily and/or weekly leaderboards where you will compete for who can go perform the best-- your position on the leaderboard will be the highest level you completed, or the most points scored, etc. At the end of the event, leaderboard rewards will be given based on placement, sent to your in-game mailbox.
Trial of Courage
Wave after wave of enemies will meet your squad on the battlefield. Defeat as many as you can until your team is KO.
Trial of Wisdom
Complete a series of challenges with varying requirements and difficulty. There may be a time limit, hero requirements, and other unique variations.
Brawl
Deal as much damage as you can under a time limit. The enemies will get more difficult as you progress through damage thresholds.
Good luck, have fun!