"The wand chooses the wizard" But in Neville Longbottom's case, he chose to adopt his father's wand. He's seen as mediocre at the beginning due to his inability to produce good magic, but he's later revealed to be equal to Harry in terms of the prophecy. This theory predicts Neville would've been just as good at the beginning if he had had the correct wand. Now you can have it yourself! Order Neville's wand online from the link in the bio!