Shimmer and Shine

Shimmer and Shine is a 2015 American animated series that follows two twin genies who grant the wishes of their best human friend Leah. While the first season was done in flash animation, the second season was done in computer animation.

Genie for a Day
Season 3, Episode 6a Airdate: October 6, 2017

Shimmer admits how much she enjoys granting wishes which causes Leah to wish to be a genie for a day so she can grant wishes to make others happy. As a result, Leah temporarily gains the ability to fly and grant wishes, however, she asks Shimmer and Shines to let her do things on her own. They give her a genie bottle which Zeta uses a potion to obtain. As a result, Leah finds herself forced to grant Zeta's three wishes, though she tells Parisa she will have to be careful how she grants Zeta's wishes to prevent Zeta from using them to takeover Zahramay Falls. Leah manages to foil Zeta's attempts to make herself the strongest sorceress by interpreting it literally, making Zeta muscular and strong instead of a magically strong sorceress with magic stronger than wish magic. Zeta assumes that Leah just has trouble granting wishes. Leah pretends to try and help Zeta make a successful wish, which leads to Zeta wishing to be top Sorceress in Zahramay Falls, which Leah once again interprets literally by transporting Leah to the top of a mountain. Zeta becomes frustrated by Leah's inability to grant wishes incorrectly and after triggering an avalanche with her enhanced strength ends up back in the marketplace where Leah reminds her of her last wish, though Zeta sarcastically says she might as well wish for a Dragon Cookie for Nazboo which Leah grants correctly, revealing to Zeta that she only wished to become a genie to make others happy and Zeta's final wish made Nazboo happy. After granting Zeta's final wish, Leah reverts back to a normal human losing her ability to grant wishes and fly. However, Leah decides to use her last wish to restore Zeta to normal causing her to lose her muscles and enhanced strength. Zeta is touched by Leah's kindness and as a show of thanks, she orders a batch of Dragon Cookies which she shares with the girls and Nazboo.

The character "Zeta" is tricked into wishing that she was the "strongest sorceress" in the land. It is from Season 3 Episode 2 "Genie for a Day" of the series "Shimmer and Shine". Transformation is instantaneous. She is transformed back at the end.