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Fire Emblem Heroes (FEH)

Horn of Opening: Best Fodder, Best Units to Inherit

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★ Latest Banners - New Heroes: Harmonized CYL Ike, Lyn
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Here you can see how to get Horn of Opening, a weapon skill in Fire Emblem Heroes (FEH). Check out Horn of Opening, Horn of Opening's effects, units with Horn of Opening, as well as Inherit Skill Information!

List of Contents

Horn of Opening Effect and Basic Information

Basic Information

Skill
Horn of Opening
Type
Weapon Skill IconWeapon Skill
Mt 14 Range 1
Effect Accelerates Special trigger (cooldown count-1).
If unit is within 3 spaces of an ally, grants Atk+6 to unit during combat and inflicts Atk-6 on foe during combat. Grants the following effects based on the number of allies within 3 spaces: ≥ 2 allies: unit makes a guaranteed follow-up attack; ≥ 3 allies, foe cannot make a follow-up attack.
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, deals +7 damage when Special triggers, and neutralizes effects that grant "Special cooldown charge +X" to foe or inflict "Special cooldown charge -X" on unit.
Required SP 400
Sacred Seal None

Skill Family

Horn of Opening Fire Emblem Heroes FEHHorn of Opening

Horn of Opening Weapon Refinery Information

Special Effect Upgrade Stats and Effect

Might 14 Range 1
HP 3
Atk - Spd -
Def - Res -
Effect Accelerates Special trigger (cooldown count-1).
If unit is within 3 spaces of an ally, grants Atk+6 and Spd+5 to unit, inflicts Atk-6 on foe, unit makes a guaranteed follow-up attack, foe cannot make a follow-up attack, and reduces damage from foe's attacks by X% of unit's Def during combat (X = number of allies within 3 spaces of unit × 10; max 30; excluding area-of-effect Specials), and also, when foe's attack triggers foe's Special, reduces damage further by X% of unit's Def (excluding area-of-effect Specials).
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, deals +7 damage when Special triggers, and neutralizes effects that grant "Special cooldown charge +X" to foe or inflict "Special cooldown charge -X" on unit.
If foe initiates combat or foe's HP ≥ 75% at start of combat, grants bonus to unit's Atk/Spd/Def/Res = number of allies within 3 spaces of unit × 2, + 5 (max 11), deals damage = 20% of unit's Def (excluding area-of-effect Specials), and grants Special cooldown count-1 to unit before unit's first attack during combat.

Required Materials for this Upgrade

Arena Medals 500 Refining Stones -
Divine Dew 200 SP 400

Mt Upgrade Stats and Effect

Might 16 Range 1
HP 5
Atk - Spd -
Def - Res -
Effect Accelerates Special trigger (cooldown count-1).
If unit is within 3 spaces of an ally, grants Atk+6 and Spd+5 to unit, inflicts Atk-6 on foe, unit makes a guaranteed follow-up attack, foe cannot make a follow-up attack, and reduces damage from foe's attacks by X% of unit's Def during combat (X = number of allies within 3 spaces of unit × 10; max 30; excluding area-of-effect Specials), and also, when foe's attack triggers foe's Special, reduces damage further by X% of unit's Def (excluding area-of-effect Specials).
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, deals +7 damage when Special triggers, and neutralizes effects that grant "Special cooldown charge +X" to foe or inflict "Special cooldown charge -X" on unit.

Required Materials for this Upgrade

Arena Medals 500 Refining Stones -
Divine Dew 200 SP 400

Spd Upgrade Stats and Effect

Might 14 Range 1
HP 5
Atk - Spd 3
Def - Res -
Effect Accelerates Special trigger (cooldown count-1).
If unit is within 3 spaces of an ally, grants Atk+6 and Spd+5 to unit, inflicts Atk-6 on foe, unit makes a guaranteed follow-up attack, foe cannot make a follow-up attack, and reduces damage from foe's attacks by X% of unit's Def during combat (X = number of allies within 3 spaces of unit × 10; max 30; excluding area-of-effect Specials), and also, when foe's attack triggers foe's Special, reduces damage further by X% of unit's Def (excluding area-of-effect Specials).
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, deals +7 damage when Special triggers, and neutralizes effects that grant "Special cooldown charge +X" to foe or inflict "Special cooldown charge -X" on unit.

Required Materials for this Upgrade

Arena Medals 500 Refining Stones -
Divine Dew 200 SP 400

Def Upgrade Stats and Effect

Might 14 Range 1
HP 5
Atk - Spd -
Def 4 Res -
Effect Accelerates Special trigger (cooldown count-1).
If unit is within 3 spaces of an ally, grants Atk+6 and Spd+5 to unit, inflicts Atk-6 on foe, unit makes a guaranteed follow-up attack, foe cannot make a follow-up attack, and reduces damage from foe's attacks by X% of unit's Def during combat (X = number of allies within 3 spaces of unit × 10; max 30; excluding area-of-effect Specials), and also, when foe's attack triggers foe's Special, reduces damage further by X% of unit's Def (excluding area-of-effect Specials).
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, deals +7 damage when Special triggers, and neutralizes effects that grant "Special cooldown charge +X" to foe or inflict "Special cooldown charge -X" on unit.

Required Materials for this Upgrade

Arena Medals 500 Refining Stones -
Divine Dew 200 SP 400

Res Upgrade Stats and Effect

Might 14 Range 1
HP 5
Atk - Spd -
Def - Res 4
Effect Accelerates Special trigger (cooldown count-1).
If unit is within 3 spaces of an ally, grants Atk+6 and Spd+5 to unit, inflicts Atk-6 on foe, unit makes a guaranteed follow-up attack, foe cannot make a follow-up attack, and reduces damage from foe's attacks by X% of unit's Def during combat (X = number of allies within 3 spaces of unit × 10; max 30; excluding area-of-effect Specials), and also, when foe's attack triggers foe's Special, reduces damage further by X% of unit's Def (excluding area-of-effect Specials).
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, deals +7 damage when Special triggers, and neutralizes effects that grant "Special cooldown charge +X" to foe or inflict "Special cooldown charge -X" on unit.

Required Materials for this Upgrade

Arena Medals 500 Refining Stones -
Divine Dew 200 SP 400

Horn of Opening Rating

Rating 9.0/10.0 Ranking A Rank

Inherit Skill Restrictions for Horn of Opening

Units able to Inherit Horn of Opening

Inheritable? Move Type that can Inherit this Skill
No -
Weapon Type that can Inherit this Skill
-

Units who have Horn of Opening as Fodder

Hero Name Learns At
FEH icon Ash 5★

Which Units Should Inherit?

This skill cannot be Inherited!

Horn of Opening is an Exclusive Skill, so it cannot be learned through Inherit Skill.

Related Links

Skills Related Links Fire Emblem Heroes FEH

Skills: Related Links

Weapon Skill IconWeapon Skills Assist Skill IconAssist Skills Special Skill IconSpecial Skills
Passive A Skill IconPassive A Skills Passive B Skill IconPassive B Skills Passive C Skill IconPassive C Skills
Sacred Seal IconSacred Seals Attuned Skill IconAttuned Skills Emblem IconEmblems

Skills Tier List

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