Illyria is quite talented. She is very intellegent and has created time machines, anti-magic fields, and other high end tech. She also has a considerable eating "disorder" in which she is usually compelled to put stuff in her mouth. Usually food. But, when she was younger, her metabolism could keep up. Her being changed into a rat kinda severly downgraded it.

She also had another vice, sex. As of now she has settled down, but when she was younger she was a self-proclaimed nymphomaniac. She was even once a college teacher who had sex with all her male students (provided that each time they filled out a release form stating to not openly discuss such matters).

But now she has stopped sleeping around, having landed a good boyfriend, a steady job, and lots of cheese. Works as an engineer at her dad's company under the alias "Jill Valentine" for personal reasons.

As a side note, turning Illyria into a rat was a friend's idea. Also, her father and the reason she is a rat, her brother, are his characters.