Dark (affinity)

Loosely, affinity determines a character's stat boosts that are gained from supports. Supports depend on the affinites of the two characters that are being bonded, and they determine the type of bonus given. The following tables are a compilation of bonuses given by the dark affinity in each game.

Characters with the Dark Affinity in Fire Emblem: The Sword of Seals
Astol, Cath, Merlinus, Percival, Rutger, Sophia, Zealot

Characters with the Dark Affinity in Fire Emblem: Blazing Sword
Rath, Isadora, Karla, Merlinus

Characters with the Dark Affinity in Fire Emblem: The Sacred Stones
Knoll, Orson, Rennac, Riev

Characters with the Dark Affinity in Fire Emblem: Path of Radiance
Calill, Giffca, Soren

Characters with the Dark Affinity in Fire Emblem: Radiant Dawn
Black Knight, Calill, Giffca, Micaiah, Naesala, Soren