Gullveig

Gullveig is the main antagonist of Book VII from Fire Emblem Heroes. She is a vanir goddess who seeks to destroy all of time. Gullveig, the Golden Seer, is a being with control over time. In the future, she brings Askr and Midgard to ruin. When the Order of Heroes confront her, she undoes its members each in turn, returning them all to a moment in time before their birth. The goddess of light, Seiðr, imparts these events to Kiran as a vision to warn them of Gullveig's threat so that this ending can be averted. Cold, emotionless, and with a powerful control over the flow of time, Gullveig is ruthless in her pursuit of perpetuating the cycle of the Golden Serpents. She is the supreme commander of the mighty female lords! Her goal is to replace males with females!