Personal Info:
Real Name: Oubliette Midas
Also Known As: No known Alias
Place Of Birth: Unknown
First Appearance: Marvel Boy Vol.2 #1 (2000) Modern Age Villain
Known Associates: Doctor Midas, The Orb
Group Affiliation: Midas Foundation, former partner of Marvel Boy, The Orb
Base Of Operations: Midas Foundation HQ
Grudges: America, Avengers and the Young Avengers
Creators: Grant Morrison and J.G. Jones
Exterminatrix is trained in hand-to-hand combat and the use of ordinary guns and more sophisticated weapons. She is very athletic and able to use her surroundings to her advantage.
Weapons: Exterminatrix’s arsenal includes an unspecified energy weapon, a golden revolver and a motorbike with built-on machine guns.
Wall Crawling: Exterminatrix wears boots with Vibranium soles that enable her to walk up walls.
Her father was the opportunist Doctor Midas who converted her mother into a "chemical hot-house of information-rich toxins", accelerating her development in-utero.
Raised into a perfect environment with an oxygen-rich atmosphere in order to enhance her brain growth and her longevity, she was taught by Midas to kill every kind of being. She claimed to have hunted and killed vampires, space monsters, and Greek gods, and aliens, among others.
Over the years, Oubliette was forced to wear a mask, as her father had told her she was scarred and disfigured (which wasn't true, except for a small scar on the left cheek).
Exterminatrix at Marvel Database
Exterminatrix at Marvel Universe: The Appendix
Exterminatrix at WriteUp's.Org
Exterminatrix at Comic Vine