Sailor Moon (1992)

S04E37 One in the Hand

Queen Nehellenia compels Helios to relinquish the Golden Crystal and return to his physical form, which grants her the power to escape from her prison within the mirror. As her dark influence begins to spread, Helios must confront the consequences of his actions and seek a way to reclaim his strength and prevent Nehellenia from unleashing chaos upon the world.