Piloroc is named after the places they abided - "pile of rocks". Their thick fur works as a great insulator and protection from light attacks, and many clothing designers have used their looks as inspiration for coats.
It goads its enemies into attacking, withstands the hits, and in return, delivers a headbutt, crushing their bones with its rocky mane. A Piloroc is covered by a thick coat of long hair for enduring freezing cold.