Site News
Warning: This wiki contains spoilers. Read at your own risk!

Social media: If you would like, please join our Discord server, and/or follow us on Twitter (X) or Tumblr!

Combination bonus

From Fire Emblem Wiki, your source on Fire Emblem information. By fans, for fans.
This article uses a conjectural title. It is unknown if an official title for the subject of this article exists, so it has been given an appropriate title by its editors. If you can find an official title for this subject, please move this article to the official title, and provide an appropriate source for that title.
Leif and Nanna activate a lover combination bonus.

A combination bonus is a game mechanic in which a statistical bonus is awarded to a pair of units who are lovers or siblings.


The mechanic first appeared in Fire Emblem Gaiden and was exclusive to Alm and Celica. During the final battle either character could get a guaranteed Critical Hit if attacking when standing adjacent to one another.

The mechanic appeared again in Fire Emblem: Genealogy of the Holy War in a more expansive form. When an eligible pair of units stand next to each other on the battlefield, both gain a +20% chance of executing a critical hit. A combination bonus is the only way for a unit who does not possess the Critical skill, either as their own skill or through their weapon's kill bonus, to execute a critical hit; if they already do possess the skill, the +20% bonus is added to their pre-existing critical hit rate. If a combination bonus critical activates, a brief animation indicating this will play before the battle commences (pictured).

Combination bonuses do not explicitly exist in later Fire Emblem series games, with their function incorporated into the support/bond bonus systems.


Critical hit rate

Game Formula Notes
Genealogy of the Holy War
Critical rate (without Critical)
(Combination bonus)% +20% critical hit rate when the combination bonus is in effect.
Genealogy of the Holy War
Critical rate (with Critical)
Skill + (Kill bonus - 50) + (Combination bonus)% +20% critical hit rate when the combination bonus is in effect.
A kill bonus of 50 awards the weapon's wielder Critical,
and every kill bonus point above 50 awards +1 to the critical rate.

Sibling pairs

The following pairs of characters are siblings and can thus activate combination bonuses in Fire Emblem: Genealogy of the Holy War:

Though half-siblings as part of the game's story, Seliph and Julia are not counted as siblings for the purpose of the combination bonus.

See also

Game mechanics
Out-of-battle management Base (BarracksBase CampBase conversationEveryone's ConditionsExpeditionGarreg Mach Monastery (Abyss) • My CastleSomniel) • Bonus experienceDungeonsGameplay modes (DifficultyCreature CampaignNew Game +) • GoldLessonsMila ShrinesPeddlerPreparationsRenownShopping (ArmoryBargainsForgeItem shopMerchantOnline shopSecret shop) • Supply convoyWorld map
Battles and chapters ArenaBattle saveBossCastleChapter (Alternate routeParalogueSide quest) • ChestCombat forecastEvent tilesHidden treasureObjectivesReinforcementSkirmishTerrain (Hazards) • Turn (Turn rewind) • Weather (Fog of war) • Village
Stats Units ActionAffinityAuthorityBiorhythmCharmClass (Class masteryClass relative powerUnit type) • Constitution (Aid) • DefenseExperienceFollow-up critical multiplierGrowth rateHit pointHoly BloodInventoryLevelLuckMagicMovementProficiencyResistanceSkillSpeedStrengthWeapon levelWeight
Weapons Brave weaponCritical rateDurabilityHitKill bonusMightPersonal weaponsRangeWeapon experienceWeapon levelWeightWorth
Unit mechanics and commands AdjutantAttack (Counterattack) • Auto-BattleBattalion (Gambit) • CantoChain attackChain GuardClass change (Reclass) • Combat artCrestsDance (GaldrarPlaySing) • Death (Decoy) • DismountDragon VeinEmblem RingsFatigueInventoryLaguz transformationLove (JealousyInheritance) • Pair UpRallyRecruitmentRescue (Capture) • Skills (Offensive skill) • SmashStaggering BlowStatus effectsSupportTalkTradeUnit (AvatarBond unitsBonus unitEinherjarLoan unitPrisonerReplacement unitSubstitute character) • Visit
Calculations AttackAttack speedAvoidBonus damageCritical hit (Combination bonusDodgeTriangle Attack) • Hit rate (True hit) • Random number generatorWeapon triangle (Trinity of magic)
Connectivity amiiboData transferDouble DuelDownloadable contentLink ArenaMultiplayer battleOnline shopSpotPassStreetPass
Other BarrierBirthdayClass rollGlitchesMultiple endingsRankingsSound RoomTactician bonus