An arena packed with beauty queens... I'm scared to go in there.
She has fair skin, light green eyes and short cyan hair. She wears a long turtleneck purple top with a matching purple bottom. She wears black boots. Her outfits and boots are decorated by neon green parts. She wears dark-purple headband-like item and triangle spring green earrings.
In "Mythix", Magnethia and the other mothers celebrate Mother's Day at Alfea. Magnethia reappears again in "A Monster Crush" along with Electronio because the Winx had to get a device to make Cloud Tower visible again after the Trix made it invisible. Therefore the Winx meet Tecna's parents while teaching them habits that occurred on Zenith. After getting the invisibility device, It appears that Frankenstein's Monster is attacking half the city and Winx were forced to stop, but this one was interested in Tecna and takes her into the Legendarium World. At the end, the Winx & Tecna say goodbye to Magnethia and Electronio before returning to Magix.
- Her name is probably derived from the word "magnet" or "magnetism", since magnets and magnetism are important in computer technology.
- She is the first member from Tecna's family who is introduced in the animated series and her appearance is different from the comic version.
- In the comics, she has shorter and purple pinkish hair.
- In the comics, she is the Queen of Titania, which is Tecna's realm in the comics.
- Her name is Ypsi in the story book.
- Her voice actress also voiced Lazuli and Darcy in the Nickelodeon dub.