A goblin is a legendary evil or mischievous grotesque dwarf-like Demon or monster that appeared in European stories and accounts during the Middle Ages.
They are ascribed various (sometimes conflicting) abilities, temperaments and appearances depending on the story and country of origin.
In some cases, goblins are little creatures related to the brownie and gnome.
Centaurs do not use wands for magic, but are known to be well-versed in magical healing, Divination, archery, and Astronomy. Centaurs burn herbs such as mallowsweet and sage to refine their stargazing findings. In fact, the centaur Firenze taught Divination at Hogwarts, starting in the 1995–1996 school year