Arena Duels (Japanese:闘技場Arena) is a competitive gampeplay mode introduced inFire Emblem Heroes. It is named afterarenas, a facility in previousFire Emblem series games. Unlike arenas in other games, players' teams fight other players' teams on a map instead of in one-on-one battles.

Gameplay

Offense

Offensive battles are the primary interaction that the player will have with this mode. Upon entering the Arena Duels menu and selecting battle three enemy teams will be presented to the player. These teams are sorted in three difficulties,Beginner,Intermediate, andAdvanced, from easiest to hardest. Challenging more powerful teams nets a higher score.

To challenge enemy teams the player must spend oneDueling Sword. Three Dueling Swords are given to the player daily. The player may replenish their Dueling Swords with aDueling Crest, which can be obtained as rewards in other game modes.

Upon successfully defeating their opponents the player is rewarded with points. If the player loses one of more of their units during the battle their reward points are reduced; if they lose the battle entirely they receive no points and their streak and its chain bonus are broken.

Arena Assault

Main article:Arena Assault

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Map rotation

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There are currently fourteen rotations of ten maps each. Prior to January 2018, rotations consisted of five maps each; the four rotations that existed under the old system along with ten maps introduced at that point were rearranged into the current system, with the original first rotation becoming part of the current first rotation alongside five new maps, the original third rotation becoming part of the current second rotation alongside five new maps, and the original second and fourth rotations becoming the current third rotation. Additional rotations were later introduced, but did not introduce any more unique maps into the game until August 2020 brought an additional twenty maps in two waves; the fourth through twelfth rotations consist of varying configurations of the maps from the first three rotations.

Although there are currently fourteen rotations of maps, there are only 50 unique maps among them.

Defense

Defending is done passively; other players will attack the player's assigned defense team. If the player's team wins, he or she will gain defense points.

Scoring and rewards

At the end of the arena season (typically Monday), the player's scores are tallied, players' points will be reset, players may change tier, and they can claim rewards. Rewards are based on offense, defense, and tier scores.

Starting with version 1.3.0, it is possible for players at tier 8 and above to be demoted if their ranking within their own tier is not sufficient enough.

Bonus heroes

Main article:Arena Duels/Bonus Heroes archive

Every arena season a set of bonus heroes will be chosen. These bonus heroes significantly bolsters the player's score, by doubling it, and are very important for high ranked players to maintain their placing. Using at least one bonus hero on an offensive team will double an offense score, the same applies for defense teams as of version 1.3.0.

Duel effect

Legendary, Duo, and Chosen heroes with the Duel effect and heroes who equipped Duel skills likeR Duel Infantry have advantages for Arena score calculations. If such unit is 5★ and level 40 and unit's stats total less than a certain value, unit's stats are treated as that value in modes like Arena.

Value	Units	Skills
160		AAA AAA AAA AAA
165		AAA AAA AAA AAA
170		AAA AAA AAA AAA
175		AAA AAA AAA AAA (Legendary/Mythic)
180		AAA AAA AAA AAA
185	}
190
195
200
205
215
220

Streak

Consecutive wins increases the player'sstreak, which is broken if he or she loses before winning five battles (formerly seven). All scoring in battles in a single streak is combined into a single score, known as thechain bonus. The highest chain bonus that the player has established throughout a single season is what determines the player's tier and if they will change tier at the end of the arena season.

Upon completion of a five battle streak the player is given rewards once per arena season:

Win streak	Reward
	May 9, 2018 ~ Aug. 23, 2022	Aug. 23 ~ Dec. 6, 2022	Dec. 6, 2022 ~
1	3000	1	1
2	100	3000	3000
3	10	80	80
4	1	10	200
5	10	10	First Summon Ticket

Tiers

As the player scores in battles, their tier increases. All the tiers award a title, said titles are named after famous groups fromFire Emblem series games.

Tier rewards

Tier
Tier 1	100	--
Tier 2	200	--
Tier 3	300	--
Tier 4	400	1
Tier 5	500	1
Tier 6	600	1
Tier 7	700	1
Tier 8	800	2
Tier 9	900	2
Tier 10	1000	2
Tier 11	1100	2
Tier 12	1200	3
Tier 13	1300	3
Tier 14	1400	3
Tier 15	1500	3
Tier 16	1600	3
Tier 17	1700	3
Tier 18	1800	4
Tier 19	2000	4
Tier 20	3000	4
Great Summoner	3500	5

Etymology and other languages

Gallery

• 
  The Arena Duels screen.