Moon and Eclipsa travel to the Pigeon Kingdom upon learning that Meteora has been leaving a trail of destruction there. They eventually locate her and discover that she is now a huge monster as result of feeding on the souls of locals. Eclipsa convinces Moon to allow her to talk to her daughter and the two share a happy reunion. That is until Meteora demands the throne of Mewni, which Eclipsa is forced to deny. With negations having broken down, Moon and Meteora fight each other. Just as Meteora was about to win, Eclipsa declares her love for her daughter, distracting her long enough for Moon to reverse the situation. However, Eclipsa once again intervenes, allowing Meteora to drain a part of Moon's soul. Moon and Meteora then both flee, leaving Eclipsa by herself.
- Esmé Bianco as Eclipsa Butterfly
- Grey DeLisle as Queen Butterfly
- Jessica Walter as Meteora Butterfly
- July 6, 2018 (Southeast Asia)
- August 17, 2018 (Latin America)
- November 12, 2018 (Portugal)
- January 20, 2019 (Japan)