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Elemental affinity. Determines compatibility with other units.
— Description of Affinity in Fire Emblem and Fire Emblem: The Sacred Stones.
The affinity as seen on Eirika's profile in Fire Emblem: The Sacred Stones.

Affinity is a game mechanic introduced in Fire Emblem: The Binding Blade. Initially restricted to being used for support bonuses, Radiant Dawn introduced other bonuses related to affinities. Currently, Radiant Dawn is the most recent game to feature affinity, games after Radiant Dawn once again lack this character attribute entirely.


In the games that feature affinities, all playable characters, and major bosses are given one affinity, in The Sacred Stones, all monsters also have an affinity, though it is always the dark affinity. The primary use of affinities is to determine what stats characters gain boosts in when they support with other units. This, however, renders affinities on non-playable characters and bosses useless, with some exceptions; in Fire Emblem, for instance, the bosses Paul and Jasmine have an A support with each other, thus allowing for the two to increase their stats if they stand near each other.

In terms of supports, boosts in stats given by the affinity of two characters stack, and their initial effects are doubled and then tripled for B and A level supports; effects that have a decimal in their total sum, however, are rounded down.

For example, pairing Nino and Canas in Blazing Sword, who have the Fire and Anima affinities respectively, would gain 1 point of attack, 5 points of evasion, 2 points to critical, and 2 points to critical evade in their C support; while Canas's Anima affinity does grant a 0.5 increase in defence, this value is rounded down to zero, thus giving neither character a bonus in defence. Increasing their support level to B, however, grants a double in each stat, and in addition to increasing stat bonuses, such as attack to 2, this also causes Canas's Anima affinity to grant both characters a increase in defence by 1.

In The Binding Blade, Blazing Sword, and Sacred Stones

In the three Game Boy Advance titles, characters are given one of seven affinities. As follows, they are fire Is gba fireaffin.png, thunder Is gba thunderaffin.png, wind Is gba windaffin.png, ice Is gba iceaffin.png, dark Is gba darkaffin.png, light Is gba lightaffin.png, and anima Is gba animaaffin.png.

The support bonuses attained by each affinity is as follows.

Affinity Accuracy Attack Avoid Critical Critical Evade Defence
Anima Is gba animaaffin.png +0.0 +0.5 +2.5 +0.0 +2.5 +0.5
Dark Is gba darkaffin.png +2.5 +0.0 +2.5 +2.5 +2.5 +0.0
Fire Is gba fireaffin.png +2.5 +0.5 +2.5 +2.5 +0.0 +0.0
Ice Is gba iceaffin.png +2.5 +0.0 +2.5 +0.0 +2.5 +0.5
Light Is gba lightaffin.png +0.5 +0.5 +0.0 +2.5 +0.0 +0.5
Thunder Is gba thunderaffin.png +0.0 +0.0 +2.5 +2.5 +2.5 +0.5
Wind Is gba windaffin.png +2.5 +0.0 +0.5 +2.5 +2.5 +0.0

Tactician's Bonus in Blazing Sword

In addition to support bonuses, a unique application for affinities can be found in Fire Emblem; at the start of the game, the player can choose to create a Tactician who has his or her own birth month. In the international versions of Blazing Sword the various birth months, have a corresponding affinity, which are as follow:

Month Affinity
January Light
February Ice
March Wind
April Thunder
May Wind
June Anima
July Fire
August Dark
September Fire
October Anima
November Ice
December Thunder

The Japanese versions of the game also feature the ability to choose the tactician's blood type, which further altered their affinity. As blood types hold a considerably lesser significance in Western culture, this option was removed. The following table list the possible combinations and resulting affinity:

Month A B O AB
January Ice Wind Fire Ice
February Wind Fire Thunder Anima
March Ice Wind Anima Thunder
April Anima Fire Thunder Ice
May Light Thunder Fire Wind
June Thunder Anima Wind Fire
July Anima Wind Ice Thunder
August Wind Dark Fire Anima
September Fire Ice Anima Thunder
October Ice Anima Wind Fire
November Anima Thunder Ice Ice
December Thunder Fire Wind Light

The bonus gives characters with the same affinity as the tactician a stat boost in both hit and evade percentage, and all characters receive a boost to critical evade that is equivalent to how many stars the tactician has earned.

Contrary to popular belief, the tactician's affinity does not increase growth rates by 5% for any character that shares their affinity; this was proven false by setting growths of some characters to 95, then demonstrating that even with this supposed addition, some stats would fail to increase on the onset of a level-up.

In Fire Emblem: Path of Radiance and Fire Emblem: Radiant Dawn

In Path of Radiance and Radiant Dawn, ice and anima are absent, while heaven Is gcn heavenaffin.png, earth Is gcn earthaffin.png and water Is gcn wateraffin.png are introduced. Fire was also renamed to "Flame".

In Radiant Dawn, each chapter also has an affinity, and characters (allied and enemy alike) receive bonuses if they have the same affinity as the chapter. Most bosses share their affinity with the chapter in which they are fought.

Support bonuses are as follow, for Path of Radiance...

Affinity Accuracy Attack Avoid Defence
Dark Is gcn darkaffin.png +0.0 +0.5 +2.5 +0.0
Earth Is gcn earthaffin.png +0.0 +0.0 +5.0 +0.0
Flame Is gcn fireaffin.png +2.5 +0.5 +0.0 +0.0
Heaven Is gcn heavenaffin.png +5.0 +0.0 +0.0 +0.0
Light Is gcn lightaffin.png +2.5 +0.0 +0.0 +0.5
Thunder Is gcn thunderaffin.png +0.0 +0.0 +2.5 +0.5
Water Is gcn wateraffin.png +0.0 +0.5 +0.0 +0.5
Wind Is gcn windaffin.png +2.5 +0.0 +2.5 +0.0

...and Radiant Dawn.

Affinity Accuracy Attack Avoid Defence
Dark Is wii darkaffin.png +0.0 +0.5 +2.5 +0.0
Earth Is wii earthaffin.png +0.0 +0.0 +7.5 +0.0
Fire Is wii fireaffin.png +2.5 +0.5 +0.0 +0.0
Heaven Is wii heavenaffin.png +9.0 +0.0 +0.0 +0.0
Light Is wii lightaffin.png +2.5 +0.0 +0.0 +0.5
Thunder Is wii thunderaffin.png +0.0 +0.0 +2.5 +0.5
Water Is wii wateraffin.png +0.0 +0.0 +0.5 +0.5
Wind Is wii windaffin.png +2.5 +0.0 +2.5 +0.0
The Binding Blade,
Blazing Sword, and
The Sacred Stones
Is gba animaaffin.pngAnimaIs gba darkaffin.pngDarkIs gba fireaffin.pngFireIs gba iceaffin.pngIceIs gba lightaffin.pngLightIs gba thunderaffin.pngThunderIs gba windaffin.pngWind
Path of Radiance
and Radiant Dawn
Is wii darkaffin.pngDarkIs wii earthaffin.pngEarthIs wii fireaffin.pngFireIs wii heavenaffin.pngHeavenIs wii lightaffin.pngLightIs wii thunderaffin.pngThunderIs wii wateraffin.pngWaterIs wii windaffin.pngWind
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