Big Zero

Big Zero is a female character from Marvel Comics.

She is a members of Young Masters (a gang of several young people with superpowers who have not decided whether they should be heroes or villains).

She has a complex relationship with Stature:
 * Sometimes they are allies that fight evil.
 * Sometimes they are rivals and fight against each other.

Origin (story)
Two years before joining the Young Masters, Big Zero met Egghead and since then they have been apparently boyfriends. She is a white supremacist, who began to change the parameters of Egghead so he respects all other races, just like her. Both she and Egghead were introduced to the Young Masters thanks to Coat of Arms.

Powers and abilities
She is a size shifter, she is able to reduce her size and increase it to herself even though she has only seen herself as giantess. She is apparently able to grow to 100 feet in height, although this has not been confirmed. She also has some capacity with machines, since she is able to reprogram Egghead (her boyfriend).

Trivia

 * Being a white supremacist, then you are very likely going to get along with Masada (jewish giantess).

Source

 * http://comicvine.gamespot.com/big-zero/4005-62019/