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Rival Domains (Japanese: 制圧戦 Conquest Battle) is a game mode in Fire Emblem Heroes, and one of a number of types of the game's Special Maps. It is a type of Special Maps that debuted on March 8, 2018, whose core maps rotate weekly every Saturday at 7:00 AM UTC starting on March 17.
At present, all Rival Domains maps use Rival Domains: Event Map (Japanese: 定期更新 制圧戦 Conquest Battle: Periodical Update) as its map title. Prior to the version 2.9 update, Rival Domains maps used Rival Domains: Weekly (Japanese: 毎週更新 制圧戦 Conquest Battle: Weekly Update) as its title; this naming style was discontinued as a result of its schedule intertwining with the Relay Defense mode and thus no longer occurring on a weekly schedule.
Rival Domains takes place on larger game maps than normal gameplay, and allow players to deploy teams of up to 20 characters, of which up to eight can be on the map at any given time; whenever one of the player's characters is defeated, another character will appear as a reinforcement from their fortress, provided the player has characters in reserve. There are some restrictions on character deployment, namely that players may deploy a maximum of one character that can use Sing or Dance and cannot deploy duplicate characters.
Forming a brigade
In addition to their own characters, players also have the option of deploying characters chosen by those on their friend lists; the character at the top left of a player's first listed team is the one made available to other players. If a player leaves empty slots in their deployment, any missing slots will be filled with a randomly-selected 5★ character chosen from all normal-variation characters available in the regular summoning pools that do not wield staves, Sing, or Dance.
Unlike other types of Special Maps, the enemies on Rival Domains maps are randomly generated more in the vein of the Tempest Trials, also taken from all normal-variation characters minus performers and staff-wielders in the regular summoning pools, but the enemy army ignores the "no duplicates" rule and fixes its selection to those characters available when the map most recently rotated in (ex. the the Week 1 map did not include the Morgans as available enemy units as they did not become available until after the map started, but did allow the Morgans as player reinforcements as the player reinforcement pool is not bound by the same rule).
Each team can make use of two types of special tiles to their advantage, fortresses and camps. Characters can freely warp between fortresses, camps, and three chosen squares adjacent to them. Fortresses can be taken out with three attacks, and doing so automatically ends the battle; camps can be taken out with two attacks, and when this happens, the camp's alignment will switch.
There are two ways to win a Rival Domains battle. The first is to destroy the opposing fortress, and the second is to survive ten turns. The player can accumulate a score during a battle; points are awarded for defeated enemies, held camps, the health of the fortresses, and bonus categories that vary per map, and meeting the target score yields rewards.
Rival Domains can be played on four difficulties: Normal, Hard, Lunatic, and Infernal. It is notably the first game mode in Heroes to offer four distinct difficulties at once, and also the first game mode to offer both Lunatic and Infernal simultaneously (all other game modes that offer difficulties offer either Lunatic or Infernal, or otherwise neither, but never both).
| Enemy level
|Normal||3★, Lv. 30||Third weapon skill only||×1|
|Hard||4★, Lv. 35||Fourth weapon skill only|| ×500|
(Color varies by event)
|Lunatic||5★, Lv. 40||Entire skill kit||×500|
|Infernal|| Entire skill kit
Weapon skills have gone through the Weapon Refinery whenever possible
List of maps
- Note: All date ranges begin at 7:00 AM UTC on the first listed date and end at 6:59 AM UTC on the second listed date.
Etymology and other languages
|Names, etymology and in other regions|
|Language||Name||Definition, etymology and notes|
|Spanish||Dominios rivales||Rival Domains|
|French||Domaines rivaux||Rival Domains|
|Italian||Lotta di potere||Power Fight|
|Traditional Chinese||壓制戰||Conquest Battle|