Sailor Galaxia

Sailor Galaxia is the main villainess in the fifth and final season of the anime and becomes Eternal Sailor Moon's strongest and most dangerous of opponents.

As the self-proclaimed "Golden Queen of Shadow Galactica" she directly commands the Sailor Animamates. She is the most powerful Sailor Senshi in the galaxy, as well as the ruler of Shadow Galactica. This is the first animated depiction of the original manga character.