Fire Emblem Heroes Wiki
Nightmare Horn
Move type Cavalry
Weapon type Red Beast Blue Beast Green Beast Colorless Beast
Might 14
Range 1
Required Adult (Cavalry)
SP 400
Exclusive? Yes
String ID SID_悪夢の女王の角
Numeric ID 2157
Description Grants Spd+3. Unit can counterattack regardless of foe's range. If unit's Spd > foe's Spd, reduces damage from attacks during combat and from area-of-effect Specials (excluding Røkkr area-of-effect Specials) by percentage = difference between stats × 4 (max 40%).

At start of turn, if unit is adjacent to only beast or dragon allies or if unit is not adjacent to any ally, unit transforms (otherwise, unit reverts). If unit transforms, grants Atk+2, and if unit initiates combat, inflicts Atk/Def-4 on foe during combat and foe cannot make a follow-up attack.


  • Beast refers to .
  • Dragon refers to .
  • The stat decrease that can be applied by Nightmare Horn is considered a combat reduction.
  • Nightmare Horn can prevent the foe from making a follow-up attack.
  • The Atk+2 granted by Nightmare Horn when the user transforms is a stat boost, not a  bonus.
    • The stat boost, combat reductions, and follow-up preventing effects of Nightmare Horn will only trigger if the unit is transformed.

List of owners[]

UnitSkill chain
Freyja Lady of Nightmare Face FC.webp
Whelp (Cavalry)
Yearling (Cavalry)
Adult (Cavalry)
Nightmare Horn

In other languages[]

Language Name
Japanese 悪夢の女王の角
German Albtraumhorn
Spanish (Europe) Cuerno pesadilla
Spanish (Latin America) Cuerno pesadilla
French Cor cauchemar
Italian Corno da incubo
Traditional Chinese (Taiwan) 惡夢女王之角
Portuguese Berrante pesadelo

See also[]