When Illyria began to become unstable, Wesley created the generator to remove her powers to stop her from exploding. While he initially claimed that it would kill her, he later admitted that this was a lie. This caused Illyria to slaughter Team Angel before her unstable powers allowed Angel to change time. When Illyria was close to exploding, Illyria reluctantly agreed to allow Wesley to use the device on her. Wesley drained a good deal of her power, leaving her significantly weakened but still very powerful.