YMMV / Fire Emblem Heroes Book V

• Magnificent Bastard: Eitri is a scientist in Niðavellir and the main villain of Book V. After being taken in by the first king of Niðavellir, she gained the ability to send her mind into different bodies, serving the kingdom for generations. Initially posing as an ally to the Order of Heroes, she helps them fend off Fáfnir's assault for the purpose of protecting Reginn, the true heir of Niðavellir. In reality, she was the one who caused Fáfnir's descent into insanity by inventing the Crown of the Dvergar that empowered him. Eitri's real plan was to ensure the glory of Niðavellir by securing Reginn's rightful claim to the throne, not caring about her own safety when all is said and done. Before her last stand against the Order, Eitri records a video explaining her wishes to the summoner, saying she got what she wanted, regardless of her fate.