The Arena Duel is a feature in Fire Emblem Heroes
Every week, players assemble teams of 4 to battle against the teams of other Fire Emblem Heroes players. Earn points by winning battles and attempt to earn as much points as possible. Based on the player's rank and total score at the end of the week, they can earn Hero Feathers as a reward. Instead of Stamina, Arena Duels require Dueling Swords to play. Players are given three free Arena attempts per day and all leftover Arena attempts from the previous day are not stockpiled. Players can fully replenish their Arena attempts if they utilize a Dueling Crest.
Players earn points in various ways, based on numerous factors:
- Difficulty - Every enemy team is given a rating score based on the team's overall unit's ratings (determined by factors such as Stats, Level, Rarity, and Equipped Skills). The player is then given three teams categorized as either Beginner, Intermediate, and Advanced. The higher in difficulty the team is, the more potential points can be earned.
- Unit Survival - After winning a battle, the player is then given a score within the range of the difficulty of the battle. This score is determined by the remaining units on the player's team at the end of the battle. Each unit dying lowers the score by 10%.
- Highlighted Heroes - Up to ten heroes are highlighted at the entrance to the Arena. Utilizing any of these highlighted units in Arena Duel increases the player's score. So long as one unit appears, the score is doubled. If a highlighted unit dies, the overall score is not affected. However, having more than one highlighted Hero does not increase the overall score. The highlighted Heroes changes every few weeks.
- Win Streak - Players earn more points the more times they win consecutively. A streak can continue up to seven wins, upon which the chain ends and they restart from zero points. A streak can also end if the player loses a single battle. Players can surrender before starting a battle on the difficulty select screen, however this does not break a chain.
The Arena awards players with Feathers so long as they participate. They earn feathers through three different factors. The Player's highest overall score during the week earns them a set amount of feather. The highest score tier is 4001 points, with 2500 feathers given should a player reach this score. The Player's score also determines their rank compared to all other Heroes players. The higher the player's rank is, the more feathers they earn. Players also receive Defense Points if their team defeats another player's team. Earning Defense Points also nets the player a small amount of Feathers (up to 500 if the player has at least 251 defense points).