Born with a congenital heart condition, Cassie's father became Ant-Man in order to save her. After Cassie's parents divorced, her mother & new stepfather felt that it was too dangerous for her to be around her father & got full custody of her. Visiting her father one weekend a month, she stole Pym Particles in hopes of becoming like him. When her father was killed, she withdrew from her mother & stepfather & planned on running away to California to join the Runaways until she saw the Young Avengers on TV. In her attempt to join them Cassie metKate Bishop , who joined her in trying to locate them. Cassie's powers first manifested during a fight with Patriot when she tryed to get her father's belongings from the Avengers Mansion. Her ability to change size seems to be linked to her emotional state, as anger has caused her to grow & guilt to shrink.

During the Civil War, she teamed up with the Runaways to free their friends and shut down an evil S.H.I.E.L.D. base. Halfway through the war, she switched sides and helped Iron Man win the war, registering under the SHRA and joining the Initiative recruits at Camp Hammond. Recently, she was kidnapped by the Puppet Master along with Arana, Dusk, and Silverclaw, but was freed from his control by Ms. Marvel and returned back to the United States. Since then, Cassie has been staying at the Initiative Training Centre at Camp Hammond, working alongside the other recruits there, even aiding them against the assault of the insane clone KIA. As during this period, she came into contact with Eric O'Grady, the current Ant-Man, facing off against the "hero" in a giant-sized duel when he insulted her father. Stature was one of the over sixty superhumans at Camp Hammond to confront the insane clone KIA during his rampage throughout the base with the Tactigon, and like the others, was swiftly defeated by the alien superweapon.

Cassie survived, however, and shortly thereafter was met by the current Vision, who had just completed a worldwide sojourn to discover his true identity. Meeting him in a restaurant outside of Camp Hammond, Stature lambasted the synthetic for assuming that the Initiative forces (herself included) were either dupes for the government or villains hoping to crush America's civil liberties, defending her decision to side with Iron Man as one of responsibility and honesty, going so far to suggest that the anti-Registration forces were rebelling just for the sake of rebellion or out of some romantic revolutionary ideal rather than out of an educated decision. The pair were ambushed by AIM terrorists shortly thereafter, and upon defeating them, Cassie was stunned when the Vision declared his love for her. Although intrigued by the gesture, she decided to take some time to sort out her feelings for him instead of accepting him outright. Cassie will be the protagonist of the fifth issue of the Young Avengers Present miniseries, reported to involve a conflict between herself and the Growing Man.

Powers and Abilities:

A baseline human originally, Cassie deliberately exposed herself to concentrated Pym Particles during her visits to Avengers Mansion, hoping to replace the powers of her father, the second Ant-Man. The attempt was successful, granting Stature the ability to grow and shrink, altering her strength and stamina in relative proportions to the transformations. While the upper and lower limits of this ability have yet to be determined, it has been demonstrated that Cassie can grow to a size of at least thirty feet tall, and shrink down to the level of an ant. Due to repeated exposure to the Pym Particles, Cassie's physiology has absorbed enough to let her change size at will. Moreoever, emotional changes have also caused transformations, as her body subconsciously reacts to mood swings or changes in temperament,

Alternate Realities

Earth.982

In the MC2 reality Cassandra is known as Stinger.