Eitri (Japanese: エイトリ Eitri) is a playable character appearing in Book V of Fire Emblem Heroes. Eitri is a skilled inventor and a sage dwelling in the forests of Niðavellir. [Initially presenting herself as an ally of the Order of Heroes due to their shared enemy in [Fáfnir)(https://anilist.co/character/247441/Fafnir), Eitri is revealed to be the main antagonist of Book V as she assists [Ótr)(https://anilist.co/character/245505/tr) in kidnapping the Summoner for her own ends and is responsible for Fáfnir's corruption.]
(Source: Fire Emblem Wiki)
