Eclipsa Butterfly is a fictional character from the animated series Star vs. the Forces of Evil. She is known for her unique appearance, featuring dark wings and a striking, mystical aura. Eclipsa is a powerful sorceress and the former queen of the Mewni kingdom, which plays a central role in the show's storyline. In the series, Eclipsa's character explores themes of love, acceptance, and the complexities of power. Her backstory reveals her connection to various characters, including Star Butterfly and Marco Diaz, as she navigates her past and the challenges of her present. Eclipsa's character adds depth to the narrative, highlighting the importance of understanding one's history.