Because of her looks, she was called Zombey , that's why her first name starts with a Z. Her second name relates to Shimmer, a potent and corrosive techmaturgical, serum-like substance that can grand superpowers.
Her vulgar and rebellious nature built up when she was younger, as she was constantly getting bullied because of her looks. Her peers assumed that Shimmer was a fake wolf, not natural.
They didn´t know what the cause for Shimmer's look was and they didn´t let her explain, therefore Shimmer had to get physical, as her verbal attempts weren´t effective.
AGGRESSIVE"
Hunter 
Hunter