Champion of the Arena Walkthrough
Talk to the arena manager in New Serene. You will meet him when proceeding with the quest An Aspiring Merchant.
You’ll have to win five rounds. Each round consists of three battles with increasing difficulty. Once you have won the fifth fight, the quest will be completed, and you’ll get the reward and several achievements.
Reward: 1000 experience points, 200 coins, and a legendary two-handed weapon.