Neville's so awesome he Could be defeated lord Voldemort in 3 books
Nagini is a horcrux and can't be killed with a wand! The only reason the Sword of Gryffindor works is because it absorbed the traits of basilisk venom. Basilisk venom is one of the only things that can destroy a horcrux!
Hogwarts Alumni: Harry Potter: Neville Longbottom, who had greatness thrust upon him