Yune

ユンヌ, Chaos Goddess

Hmmm... "dark god." "Dark god"... No, I'm pretty sure I'm not one of those.
— Yune

Yune (pronounced /ˈjuneɪ/[key][1] or /ˈjun/[key][2]; Japanese: ユンヌ Yune) is the Goddess of Chaos, and a significant figure in the history of Tellius. She was originally part of the Goddess of Dawn, Ashunera, and was formed when Ashunera split her emotions from herself and became the Goddess of Order, Ashera. Yune is widely known and reviled among the people of Tellius as a "dark god", alleged to be responsible for causing the devastating Great Flood of ancient times.

(Source: Fire Emblem Wiki)