Witch in the Beastworld

Opheila Potter in one word hated her life, her father James Potter wanted her to he the perfect lady and to do as she was told.
her mother Lily went from a some what down to earth muggle-born to a stuck up gold digger.
her twin Harry Potter was the golden child of the family and could do no wrong.

she hated being in her life and in her sixth year she finds out her family are planning to sacrifice her for Dumbledores 'greater good' and if she survived then selling her to the Weasleys.

what will happen when her prayers are answered?