She (like three other villains*) tried to defeat Avenger duck one time, but was incarcerated. She didn`t really lose, though. She found out his secret identity (Donald duck)!
Next time she is seen, she`s one of the Sinister seven, who are going to rule the world. She fights against Ultraheroes with the other villains.
As the story goes on, and the whole world is threatened by a common menace, the two opposing teams unite, to save their planet. Zafire included.
Some time later, Zafire unites with a few Ulltraheroes again, to put an end to unending Christmas.
She has gloves that can control and shoot elecricity, and is able to hypnotize others with her eyes.
* To learn more about this, check Mr. Invisibles page.