Fanatic_Squared
What if when Azazel killed Mary Winchester, he killed the rest of the Winchesters as well? All except one, Kendra Winchester, had been spending the night at a friend's house, the Halliwell family. After the disaster, the Halliwell family takes in Kendra. But as time goes on, the Halliwell siblings separate until the death of their grandmother; the siblings come to learn their inheritance, and Kendra comes to discover her true heritage.
*Based on the Charmed 1998 series, not the remake*
* I do not own Charmed or Supernatural, just Kendra and any changes made to the original shows*