The Scorpion was originally intended to be the daughter of the Silver Samurai and the Viper, thus explaining Carmilla's hair color.

[2] The title character of that story is a beautiful young woman whose breath and touch have been rendered poisonous by the experiments of her father.

After the vicious murder of her adoptive parents, Carmilla discovered her biological mother, Monica Rappaccini, was the Scientist Supreme of the worldwide terrorist network A.I.M.

Peter David, who wrote her appearances in Hulk, made suggestions that Bruce Banner may be her biological father.

handler, agent Derek Khanata, were sent to New York under orders to track down and capture the Uni-Power before it could fall into the hands of the terrorist organization A.I.M.

[5] In Spider-Man Family #3 (set before Civil War: Choosing Sides #1), she appears in a short story again written by Van Lente and drawn by Leonard Kirk.

When the then-current Venom and former Scorpion Mac Gargan finds out about her, he challenges her to a fight, since he is negotiating for a movie based on his life story and does not want her diluting his trademark.

When she finally got to battle the Hulk, she filled his body with a S.H.I.E.L.D.-devised poison concoction specially designed to kill him, but the sole effect was to cause boils to erupt on his skin.

The Hulk's healing factor returned him to normal after just a few minutes, after which he was prompted to a sudden rush of anger by Amadeus Cho.

[8] It is revealed that Carmilla is now Hardball's lover and is the co-leader of the HYDRA Training Facility in Madripoor that the Shadow Initiative is supposed to be taking out.

Her lymphatic system produces a "ludicrous" variety of life-saving chemicals, for example, atropine to defend against nerve gas or amyl to overcome blood agents like cyanide.

Like activated charcoal, the cilia lining the Scorpion's trachea are highly adsorptive, neutralizing harmful particles before they reach the lungs.

[6] Essentially, her unique body chemistry makes her immune to most types of poisons and unhealthy chemicals, gases, radiation (she can absorb and possibly gain nutrients from all three of these), and diseases.

The mind-controlling chemicals meant to make her loyal to her mother's agenda were what she originally absorbed and accidentally used to kill her boyfriend.

But after three years, she has gotten relative control over it and can alter the strength of her poisonous touch from merely making people sick to knocking someone out or killing them.

Since Madripoor, she has added a tail (similar to that of Mac Gargan, the original Scorpion) to her costume with a stinger that injects S.P.I.N.