Mad Justice

Overview
Bo Ter-Kep, also known as Buttercup Stark, is a Lexiconian superhero and a member of the Powergirls. She was cloned from the DNA of a Lexiconian criminal.

Well, She's the Toughest Fighter
Referred as "the toughest fighter" of the Powergirls, she is the group's tough member and is easily enraged. Sometimes this, and her aggression get the better of her, making her a little reckless and stubborn, but she later overcomes this by training under Batman.

She also showed a greedy side when she knocked out teeth for the sole purpose of obtaining money. She has shown these sides, as well as a softer side. For example, she once had a soft green blanket that she was obsessed with that she would hug that gave her the confidence to be a better fighter, and she is quite protective over her sisters.

Interestingly enough, she is the only Powergirls that is capable of curling their tongue. She possesses a violent and mean streak, not displayed by her sisters.

Buttercup was initially the one that inspired the other girls to use their powers to fight crime and the forces of evil. She never worries about sustaining injuries, even in the toughest of battles.

Trivia
Despite being Lexiconian in origin, the Powergirls were all given Kryptonian names.