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'Harry Potter And The Half-Blood Prince' Comebacks That Are Deadlier Than Sectumsempra

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Vote up the comebacks that are the ultimate dark magic.

Harry Potter and the Half-Blood Prince is filled with death, destruction, and the rise of the Voldemort - so naturally it's the funniest installment of the franchise. Admist all of the dark plot lines, the characters deliver some truly iconic quotes. From Harry taking some liquid luck to Hermione trying to impress Professor Slughorn, the movie is full of a surprising amount of laughs. These are the most epic comebacks in the sixth movie. Some are even stronger than the Unbreakable Vow.