Character from Shingeki no Bahamut and Granblue Fantasy. Morrigna refers to three characters as a single entity which are based off "The Morrigan" from Irish mythology.
Badb wears white a white dress and has a two U-shaped hair ornaments. Macha wears a red dress and has a rectangular shaped hair ornament. Neamhan wears a blue dress and wears a headband that has a feather in the middle. Refer to post #3524302