The Arena is a game feature where players battle against other players. By participating, you may earn medals which can be exchanged for items. Please note that battle conditions will vary depending on the event period. For example, if black magic and status ailments are forbidden, any unit can still participate, though they will be unable to cast black magic or inflict status effects on enemies.

There are 10 turns total for arena battles. At the start of each turn, there is a roll to see who will go first. Players will battle each other until one team is unable to battle or until ten turns have passed. Should the latter happen, the winner is decided by how many active units are remaining. One arena orb is consumed per battle and a player can participate up to ten times before all orbs are consumed. These can be replenished over time, or immediately by spending 100 lapis or increasing your player rank.