Spd Def Detect — feheroes

Type	Icon	Name	SP	Required	Description 【Switch】
B		Spd/Def Detect	300	Spd/Def Snag 3	Inflicts Spd/Def-4 on foe during combat. If a movement Assist skill (like Reposition, Shove, Pivot, etc.) is used by unit or targets unit, inflicts【Exposure】on closest foes within 5 spaces of both unit and target ally or unit and targeting ally after movement and foes within 2 spaces of those foes through their next actions. Inflicts Spd/Def-5 on foes on the map with the 【Exposure】effect active and neutralizes bonuses to Spd/Def for those foes during combat.	Inflicts Spd/Def-4 on foe during combat. If a movement Assist skill (like Reposition, Shove, Pivot, etc.) is used by unit or targets unit, inflicts【Exposure】on closest foes within 5 spaces of both unit and target ally or unit and targeting ally after movement and foes within 2 spaces of those foes through their next actions. Inflicts Spd/Def-5 on foes on the map with the 【Exposure】effect active and neutralizes bonuses to Spd/Def for those foes during combat. 【Exposure】 Foe's attacks deal +10 damage.
Cannot use:

Effects

Effects	Targets	Conditions
Status effects
Exposure	Closest Foes within 5 spaces of Unit & Target Ally & Foes within 2 spaces of those Foes	A Movement Assist is used on or by Unit
Combat effects
Spd/Def-4	Foe	—
Spd/Def-5	Foes with Exposure
Neutralizes Spd/Def Bonuses	Foes with Exposure

The stat reduction that can be applied during combat by Spd/Def Detect is considered a temporary debuff.
Spd/Def Detect applies the Exposure status effect.
- Any 【Penalty】 effect on a unit lasts until that unit takes an action. If the unit takes multiple actions in a turn, they will only have Exposure for their first action.

The damage boosting effect is a flat +10 damage that ignores the foe's Def or Res when calculating the damage boost, and can be reduced by damage reduction effects such as Archrival, A/S Rival Break, and Dodge.
- Damage boosting effects stack additively, similar to flat damage-reduction effects and interactions related to the weapon-triangle, such as Triangle Adept and the weapon-triangle advantage boost.
- A foe equipped with Invincibility Seals will neutralize all sources of damage except from Røkkr area-of-effect Specials and the minimum 1 damage from Umbra Burst weapons.
- A foe using attack damage preventing effects can neutralize damage dealt from the foe's own attacks and the unit's attacks (Units with Umbra Burst weapons will take and deal the minimum 1 damage).
- For more information, see Damage calculation.

Spd/Def Detect can neutralize Bonuses during combat.
- Bonuses are neutralized by inflicting temporary debuffs of the same amount during combat.
- The Bonus neutralizing effect will be negated if the affected unit has Panic (and doesn't have Null Panic), or has their Bonuses removed by a source of Bonus effect removal.
The temporary debuffs and bonus neutralization of Spd/Def Detect will not apply if an ally enters combat and the user is inflicted with Time's Grip, the ally is inflicted with Feud, or the ally is in combat against a foe with skills such as Impenetrable Void and C Feud 3.

Unit	Skill chain
Lucina: Shadows of Fate	Spd/Def Snag 1 5	Spd/Def Snag 2 5	Spd/Def Snag 3 5	Spd/Def Detect 5
Sedgar: Festive Horseman	Spd/Def Snag 1 4	Spd/Def Snag 2 4	Spd/Def Snag 3 4	Spd/Def Detect 5

Start	End	Event	Skill
2024-11-06	2024-12-06	Family Ninja Class	Spd/Def Detect
2025-02-02	2025-03-07	Special Hero Summon	Spd/Def Detect
2025-03-13	2025-04-13	Double AHR: Top Eight	Spd/Def Detect
2025-04-17	2025-05-06	35th Anniv.: Rising Heroes Summon 1	Spd/Def Detect
2025-05-22	2025-06-05	Focus: Double Special Heroes	Spd/Def Detect
2025-11-08	2025-11-15	Family Ninja Class	Spd/Def Detect
2026-01-01	2026-02-01	Mortal's New Year	Spd/Def Detect
2026-02-02	2026-03-06	Special Hero Summon (Year 9)	Spd/Def Detect
2026-02-02	2026-02-11	9th Anniv. "12 Luminaries" 1	Spd/Def Detect