The Troll of Nadroj was a breed of Troll. It was similar in appearance to a Mountain Troll, but had huge hands with clawed, disproportionately long fingers. This creature was covered in The Monster Book of Monsters, and, as such, was part of the third-year Care of Magical Creatures curriculum at Hogwarts School of Witchcraft and Wizardry under Professor Rubeus Hagrid.