Bellatrix cast the killing curse, “Avada Kedavra” at Ginny, which is when Molly Weasley stepped in. After uttering the iconic line “Not my daughter, you b—,” Molly took over the duel.

Avada Kedavra, “the killing curse” is introduced in Harry Potter and the Goblet of Fire as one of the three Unforgivable Curses. When cast successfully, it will instantly kill its target ...