Fire Emblem Heroes (FEH)

Sword of Isaach: Best Fodder, Best Units to Inherit

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Here you can see how to get Sword of Isaach, a weapon skill in Fire Emblem Heroes (FEH). Check out Sword of Isaach, Sword of Isaach's effects, units with Sword of Isaach, as well as Inherit Skill Information!

Sword of Isaach Effect and Basic Information

Basic Information

Skill
Sword of Isaach
Type
Mt 16 Range 1
Effect Accelerates Special trigger (cooldown count-1).
At start of turn, if unit's HP ≥ 25%, grants Atk/Spd+6, 【Potent Follow】, and "neutralizes foe's bonuses during combat" to unit and allies within 2 spaces of unit for 1 turn.
At start of combat, if unit's HP ≥ 25%, grants bonus to unit's Atk/Spd/Def/Res = 5 + 15% of unit's Spd at start of combat, and also, if 【Potent Follow X%】 has triggered and X ≤ 99, then X = 100, unit deals +Y x 5 damage (Y = number of Bonus effects active on unit, excluding stat bonuses + number of Penalty effects active on foe, excluding stat penalties; max 5; excluding area-of-effect Specials), and reduces damage from foe's first attack by Y x 3 during combat ("first attack" normally means only the first strike; for effects that grant "unit attacks twice," it means the first and second strikes), and also, when foe's attack triggers foe's Special, reduces damage by Y x 3 (excluding area-of-effect Specials).
At start of combat, if unit's HP ≥ 25%, restores 7 HP to unit after combat.
【Potent Follow】
If decreasing the Spd difference necessary to make a follow-up attack by 25 would allow unit to trigger a follow-up attack (excluding guaranteed or prevented follow-ups), triggers 【Potent Follow X%】 during combat (if unit cannot perform follow-up and attack twice, X = 80; otherwise, X = 40).
Required SP 400
Sacred Seal None

Skill Family

Sword of Isaach Fire Emblem Heroes FEHSword of Isaach

Sword of Isaach Rating

Rating 9.5/10.0 Ranking S Rank

Inherit Skill Restrictions for Sword of Isaach

Units able to Inherit Sword of Isaach

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

Units who have Sword of Isaach as Fodder

Hero Name Learns At
FEH icon Legendary Ayra 5★

Which Units Should Inherit?

This skill is present in builds for the heroes listed below. Check out their pages to find out how to use this skill with these heroes!

This skill cannot be Inherited!

Sword of Isaach is an Exclusive Skill, so it cannot be learned through Inherit Skill.

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