Potter is more of a rip off of Lord of the Rings imo.

Orphan who has to stop a once defeated but now returning dark lord, via destroying object(s) that contain his soul, with the help of a wizard and companions, all while evading the evil followers of the dark lord. Receives powerful artefacts that help him (cloak of invisibility vs sting/mithril coat). Assisted by a father/teacher figure that at first appears to be evil but turns out to be a good and beloved friend (Aragorn/Sirius Black).