Maeve Alarica Potter was orphaned at merely 15 months old by a dark wizard who sought to end her. She was placed with her muggle family that despised anything abnormal and freakish.
Unfortunately for Maeve, she was both of these, forced to live with people who condemned her. Punished wrongly for things she could not control.
At age 7, Maeve could control her strange abilities, and with that she changed the course of her future. She grew to hate those different from her, those that lacked the powers she held. They were mundane and exceptionally useless to her. She kept her 'relatives' alive merely because she was underage and couldn't care for herself.
At age 11, she learns of her true heritage and why she became an orphan. She also learns of the man who saw fit to place her with the Dursleys. Who tried to seal away her parents will and illegally placed her with them and made himself her magical guardian.
She'll get her revenge and with time she take over the wizardry world one charming smile at a time...