"Meteora's Lesson" is the second segment of the sixty-sixth episode of Star vs. the Forces of Evil. It premiered on April 7, 2019 alongside "Cornball!", and is the second segment of the tenth episode in the fourth season.
Glossaryck needs Meteora to help him with an errand.
Eclipsa invites Janna to babysit Meteora while she visits the Pigeon Family. She gets distracted playing on her phone and Glossaryck, with his arm in a sling, fetches Meteora for her lesson on how to "dip down". They go to see Father Time, but he is nowhere to be seen, forcing the two to take a ferry with Reynaldo the Bald Pate. Reynaldo, who speaks in rhyme, wishes to be a part of the Magic High Commission, but Glossaryck cannot make that happen despite creating them all. Glossaryck and Meteora are taken too far back and meet the first Mewman settlers. Taking pity on them, Glossaryck creates the first wand, gives it to a random woman in the group and tells them to take shelter at a stump due to a terrible storm that is coming.
Reynaldo takes them to the correct time which is when a younger Toffee is training Rastacore and the rest of his reptilian friends. Glossaryck reveals that his broken arm was the result of Toffee doing it and he beckons him to break the other one. Meteora furious does "dip down" and fires a powerful energy blast at Toffee, sending him and his friends fleeing. Glossaryck takes Meteora back home just in time for Eclipsa to come back. When Meteora proclaims "Dip down!", Eclipsa misinterprets it as "Daddy!" and gets excited. Glossaryck states that he believes that magic is in good hands; revealing that he faked his injury.
- Esmé Bianco as Eclipsa Butterfly
- Ross Bryant as Reynaldo the Bald Pate
- Keith David as Glossaryck
- Abby Elliott as Janna Ordonia
- Dave Allen as Past Mewman Man 1
- Mark Gagliardi as Archibald, Past Mewman Man 2
- Michael C. Hall as Toffee
- Chris Tergliafera as Rastacore
- Kari Wahlgren as Meteora Butterfly, Past Mewman Woman
- This is the first time in the series that Janna appears without Star or Marco.
- Glossaryck is revealed to have been secretly teaching Meteora to dip down.
- Reynaldo the Bald Pate of the Magic High Commission, first featured in Star vs. the Forces of Evil: The Magic Book of Spells, appears for the first time.
- It is revealed that Glossaryck created the Royal Magic Wand, using Meteora's baby rattle and a Millhorse, and gave it to one of the first settlers of Mewni and is also the reason for giving them shelter at the stump.
- It is also revealed that Toffee knew Glossaryck since he was a "teenage bad boy".
- June 14, 2019 (Southeast Asia)