Circadian Beat is an ability which debuted in Fire Emblem: Three Houses. The personal ability of Constance, it grants the user varying effects depending on the type of map they are fighting in. In an indoor map, the ability increases the user's offensive stats, while in an outdoor map, it instead increases the user's defensive stats.
Along with the stat boosts, Circadian Beat is also indicated in-game by Constance herself; she has a separate set of portraits, facial expressions, and voice lines for both indoor maps and outdoor maps.
|Three Houses||+3 strength and magic when fighting indoors.
+3 defense and resistance when fighting outdoors.
Etymology and other languages
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|Names, etymology and in other regions|
|Language||Name||Definition, etymology and notes|
|English||Circadian Beat||Circadian rhythm refers to an internal process that regulates a person's sleep cycle. This ability fits with the personality of Constance, its sole bearer: she becomes confident and boisterous when indoors or in cloudy weather, but turns timid and self-loathing when exposed to sunlight.|