This page is about the status effect. For the passive skill, see Bonus Doubler.
Bonus Doubler[1] is a status effect that grants temporary buffs to Atk/Spd/Def/Res = current bonus on each of unit's stats. Each stat bonus is calculated independently. For sources of this status effect, see the category page Sources of Bonus Doubler.
Skill Interaction[ | ]
Main article: Skill interaction
- The stat increase that can be applied by Bonus Doubler is considered a temporary buff.
- The stat increasing effect of Bonus Doubler will activate if the unit receives
Bonuses. - The stat increasing effect will not be negated nor reduced if the unit receives Penalties.
- The stat increasing effect of Bonus Doubler will stack with the temporary debuffs from Neutralize Bonuses or sources of bonus neutralization.
- The stat increasing effect will be negated if the unit is affected by Panic (and not affected by Null Panic), Ploy, or the unit has their Bonuses removed by a source of positive status effect neutralization.
- The stat increasing effect of Bonus Doubler will activate if the unit receives
| Icon | Type | Example Source | Description | Sound Effect |
|---|---|---|---|---|
|
Positive |  Ardent Durandal Heroic Banner
|
Grants bonus to Atk/Spd/Def/Res during combat = current bonus on each of unit's stats for 1 turn. Calculates each stat bonus independently. |
Sources of Bonus Doubler[ | ]
List of Weapons
List of Unrefined Weapons
| Weapon | Description |
|---|---|
| Ardent Durandal | Grants Atk+3. At start of turn, grants 【Bonus Doubler】 to ally with the highest Atk. 【Bonus Doubler】 Grants bonus to Atk/Spd/Def/Res during combat = current bonus on each of unit's stats for 1 turn. Calculates each stat bonus independently. |
| Blade of Sands | Accelerates Special trigger (cooldown count-1). At start of turn, if unit is within 2 spaces of an ally, grants Spd/Res+6,【Bonus Doubler】, and【Null Panic】to unit and allies within 2 spaces of unit for 1 turn. If unit initiates combat or is within 2 spaces of an ally, grants Atk/Spd/Def/Res+5 to unit, neutralizes effects that guarantee foe's follow-up attacks and effects that prevent unit's follow-up attacks, and deals damage = 20% of unit's Spd during combat (excluding area-of-effect Specials). 【Bonus Doubler】 Grants bonus to Atk/Spd/Def/Res during combat = current bonus on each of unit's stats for 1 turn. Calculates each stat bonus independently. 【Null Panic】 If unit is inflicted with Panic (bonuses converted into penalties), neutralizes the "converts bonuses on target into penalties" effect for 1 turn. (Even though the effect is neutralized, the Panic status remains, and is treated as a Penalty status.) |
| Damiell Bow | Effective against flying foes. Grants Spd+3. If a Rally Assist skill is used by unit, grants target【Bonus Doubler】and target can move 1 extra space. (That turn only. Does not stack. No effect on cavalry allies with Range = 2.) At start of combat, if unit's HP ≥ 25%, grants Atk/Spd+6 to unit during combat. 【Bonus Doubler】 Grants bonus to Atk/Spd/Def/Res during combat = current bonus on each of unit's stats for 1 turn. Calculates each stat bonus independently. |
| Guarding Lance | Accelerates Special trigger (cooldown count-1). If a Rally or movement Assist skill (like Reposition, Shove, Pivot, etc.) is used by unit or targets unit, grants Atk/Spd/Def+6, 【Bonus Doubler】, and【Foe Penalty Doubler】to unit and target ally or unit and targeting ally for 1 turn. If unit initiates combat or is within 2 spaces of an ally, grants Atk/Spd/Def/Res+5 to unit, neutralizes effects that guarantee foe's follow-up attacks and effects that prevent unit's follow-up attacks, and reduces damage from foe's first attack by 40% during combat. 【Bonus Doubler】 Grants bonus to Atk/Spd/Def/Res during combat = current bonus on each of unit's stats for 1 turn. Calculates each stat bonus independently. 【Foe Penalty Doubler】 Inflicts penalty on foe's Atk/Spd/Def/Res during combat = any current penalty on each of those stats through their next action. Calculates each stat penalty independently. |
| Heavy War Axe | Grants Def+3. At start of turn, if unit is within 2 spaces of an ally, grants Atk/Def+6, 【Bonus Doubler】, and "foe cannot make a follow-up attack" to unit for 1 turn. At start of turn, grants Atk/Def+6,【Bonus Doubler】, and "foe cannot make a follow-up attack" to any support partner within 2 spaces of unit or, if unit is not on a team with unit's support partner, to ally with the highest Def within 2 spaces of unit for 1 turn. If unit initiates combat or is within 2 spaces of an ally, grants Atk/Spd/Def/Res+5 to unit, unit makes a guaranteed follow-up attack, deals damage = 20% of unit's Def (excluding area-of-effect Specials), and reduces damage from attacks by 30% during combat (excluding area-of-effect Specials). 【Bonus Doubler】 Grants bonus to Atk/Spd/Def/Res during combat = current bonus on each of unit's stats for 1 turn. Calculates each stat bonus independently. |
| Quieting Antler | Enables【Canto (２)】. Accelerates Special trigger (cooldown count-1). At start of turn, if unit is within 2 spaces of an ally, grants Atk/Def+6 and【Bonus Doubler】to unit and allies within 2 spaces of unit for 1 turn. If unit is within 2 spaces of an ally, and if unit and allies within 2 spaces of unit have bonuses to Atk/Spd/Def/Res after start-of-turn skills trigger, grants an additional +3 to each corresponding stat for unit and those allies for 1 turn (calculates each stat bonus independently; max 10). If unit initiates combat or if unit is within 2 spaces of an ally, inflicts penalty on foe's Atk/Def = 6 + 20% of unit's Def at start of combat, unit deals +X damage (X = highest total bonuses among unit and allies within 3 spaces of unit; excluding area-of-effect Specials), and reduces damage from foe's attacks by 50% of X (excluding area-of-effect Specials). At start of turn, if unit is adjacent to only beast or dragon allies or is not adjacent to any ally, unit transforms (otherwise, unit reverts). If unit transforms, grants Atk+2 to unit, inflicts Atk/Def-Y on foe during combat (Y = number of spaces from start position to end position of whoever initiated combat, + 3; max 6), and also, if Y ≥ 5, reduces damage from foe's first attack by 30% during combat. 【Canto (２)】 After an attack, Assist skill, or structure destruction, unit can move ２ space(s). (Once per turn. Only highest value applied. Does not stack.) 【Bonus Doubler】 Grants bonus to Atk/Spd/Def/Res during combat = current bonus on each of unit's stats for 1 turn. Calculates each stat bonus independently. |
| Suave Blade | Accelerates Special trigger (cooldown count-1). If a Rally or movement Assist skill (like Reposition, Shove, Pivot, etc.) is used by unit or targets unit, grants "reduces the percentage of foe's non-Special 'reduce damage by X%' skills by 50% during combat (excluding area-of-effect Specials)" and 【Bonus Doubler】to unit and target ally or unit and targeting ally for 1 turn. If a Rally or movement Assist skill is used by unit, grants another action to unit (once per turn). If unit initiates combat or is within 2 spaces of an ally, grants bonus to unit's Atk/Spd/Def/Res = 5 + number of allies within 3 rows or 3 columns centered on unit × 3 (max 14), neutralizes effects that guarantee foe's follow-up attacks and effects that prevent unit's follow-up attacks, and reduces damage from foe's first attack by number of 【Bonus】effects active on unit, excluding stat bonuses, × 3 during combat (max 15; excluding area-of-effect Specials; "first attack" normally means only the first strike; for effects that grant "unit attacks twice," it means the first and second strikes). 【Bonus Doubler】 Grants bonus to Atk/Spd/Def/Res during combat = current bonus on each of unit's stats for 1 turn. Calculates each stat bonus independently. 【Bonus】 All effects that last "for 1 turn" or "that turn only." Includes bonuses granted by a skill like Rally or Hone and positive status effects (extra movement or effects like Dominance). |
List of Refined Weapons
| Weapon | Refined Description |
|---|---|
| Ardent Durandal | Grants Atk+3. At start of turn, grants 【Bonus Doubler】to unit and ally with the highest Atk (excluding unit). At start of combat, if unit's HP ≥ 25%, grants Atk/Spd/Def/Res+4 to unit during combat. 【Bonus Doubler】 Grants bonus to Atk/Spd/Def/Res during combat = current bonus on each of unit's stats for 1 turn. Calculates each stat bonus independently. |
List of Skill Refined Weapons
None, currently.
List of Assists
| Assist | Description |
|---|---|
| Spring's Dream | Grants another action to target ally. Grants Atk+6 and【Bonus Doubler】to target ally and allies within 2 spaces of target ally (excluding unit) for 1 turn. Inflicts Atk-6 and【Panic】 on nearest foes within 5 spaces of target ally and any foe within 2 spaces of those foes through their next actions. (Cannot target an ally with Sing or Dance; this skill treated as Sing or Dance.) 【Bonus Doubler】 Grants bonus to Atk/Spd/Def/Res during combat = current bonus on each of unit's stats for 1 turn. Calculates each stat bonus independently. 【Panic】 Converts bonuses on target into penalties through its next action. |
| To Change Fate! II | Moves target ally to opposite side of unit. Grants another action to unit, grants Atk/Def+6 and【Bonus Doubler】to unit and Pair Up cohort (if any) for 1 turn, and inflicts【Isolation】 on unit and Pair Up cohort (if any) through their next action. (Once per turn.) 【Bonus Doubler】 Grants bonus to Atk/Spd/Def/Res during combat = current bonus on each of unit's stats for 1 turn. Calculates each stat bonus independently. 【Isolation】 Target cannot use or be the target of Assist skills through its next action. (Target can neither use nor be the target of skills like Dance and Sing, skills that neutralize penalties, like Restore and Harsh Command+, etc.) |
List of Specials
None, currently.
List of Passives
List of A Passives
None, currently.
List of B Passives
None, currently.
List of C Passives
| Icon | Passive | Description |
|---|---|---|
 |
Inborn Idealism | At start of turn, if a dragon or beast ally is deployed, grants Atk/Spd/Def+6, 【Bonus Doubler】, and【Null Panic】to unit and ally with the highest Atk (excluding unit) for 1 turn. 【Bonus Doubler】 Grants bonus to Atk/Spd/Def/Res during combat = current bonus on each of unit's stats for 1 turn. Calculates each stat bonus independently. 【Null Panic】 If unit is inflicted with Panic (bonuses converted into penalties), neutralizes the "converts bonuses on target into penalties" effect for 1 turn. (Even though the effect is neutralized, the Panic status remains, and is treated as a Penalty status.) |
List of Attuned Skills
None, currently.
List of Sacred Seals
None, currently.
List of Emblem Effects
None, currently.
List of Captain Skills
None, currently.
List of Duo Skills
| Owners | Duo Skill |
|---|---|
 Marth: Royal Altean Duo |
Grants Atk/Spd/Def/Res+3 and【Bonus Doubler】to armored and flying allies within 3 rows centered on unit. (That turn only. Does not stack.) 【Bonus Doubler】 Grants bonus to Atk/Spd/Def/Res during combat = current bonus on each of unit's stats for 1 turn. Calculates each stat bonus independently. |
List of Harmonized Skills
| Owners | Harmonized Skill |
|---|---|
 Lysithea: Gifted Students |
Grants Atk+6,【Resonance: Blades】, and 【Bonus Doubler】to unit and allies from the same titles as unit for 1 turn. 【Resonance: Blades】 Grants Atk/Spd+4 during combat for 1 turn. 【Bonus Doubler】 Grants bonus to Atk/Spd/Def/Res during combat = current bonus on each of unit's stats for 1 turn. Calculates each stat bonus independently. |
 Edelgard: Sun Empresses |
Grants Atk+6,【Resonance: Shields】, and 【Bonus Doubler】to unit and allies from the same titles as unit for 1 turn. 【Resonance: Shields】 Grants Def/Res+4 during combat and the following effect for 1 turn: "During unit's first combat in player phase or enemy phase, foe cannot make a follow-up attack." 【Bonus Doubler】 Grants bonus to Atk/Spd/Def/Res during combat = current bonus on each of unit's stats for 1 turn. Calculates each stat bonus independently. |
 Goldmary: Coy Beach Divas |
Grants Def/Res+6,【Resonance: Shields】, 【Bonus Doubler】, and【Bulwark】to unit and allies from the same titles as unit for 1 turn. 【Resonance: Shields】 Grants Def/Res+4 during combat and the following effect for 1 turn: "During unit's first combat in player phase or enemy phase, foe cannot make a follow-up attack." 【Bonus Doubler】 Grants bonus to Atk/Spd/Def/Res during combat = current bonus on each of unit's stats for 1 turn. Calculates each stat bonus independently. 【Bulwark】 Foes with Range = 1 cannot move through spaces adjacent to unit (does not affect foes with Pass skills). Foes with Range = 2 cannot move through spaces within 2 spaces of unit (does not affect foes with Pass skills). |
List of Items
None, currently.
List of Structures
| Icon | Structure | Level | Description |
|---|---|---|---|
 |
Heroic Banner | 4 | Grants bonus to Atk/Spd/Def/Res during combat = current bonus on each of ally's stats to allies within 5 rows and 5 columns centered on structure. Calculates each stat bonus independently. (That turn only.) |
In other languages[ | ]
| Language | Name |
|---|---|
| English (US) | Bonus Doubler |
| Japanese | 強化増幅 |
| German | Bonus-Doppler |
| Spanish (Europe) | Bonificación doble |
| Spanish (Latin America) | Bonificación doble |
| French | Amplification |
| Italian | Aumento bonus |
| Traditional Chinese (Taiwan) | 強化增幅 |
| Portuguese | Dobra bônus |