Barghest

Barghests are goblin lycanthropes. They possess some magical ability, along with the shape-changing and strength associated with a Werewolf. Most certainly have an evil temperament to match.

Early years
The Barghest originates in the plane of Gehenna but are sent to the Prime material plane to mature. Once they are have reached maturity, they are allowed to return to their native plane.Their method of doing this is gruesome in nature. To grow and become stronger, the Barghest, known as a Barghest whelp in it's formative years, must devour victims in order to gain size and strength. The stronger the victim consumed, the more power is attributed to the whelp.

In one case, a Barghest named Ulgulu lives out his early years around the region of Mirabar and becomes very strong after many such consumptions, so strong in fact as to be near able to return to Gehenna. He slays a farmers family called the Thistledowns, and devours the eldest daughter.In the process he leaves false evidence to point the blame at the dark elf ranger Drizzt Do'Urden so as to cover his crimes. In revenge for the slain family, the drow kills Ulgulu, along with the creature's minions and brother Kempfana. Ulgulu dies half way between changing back from a gigantic wolf, proving the Barghests ability to shape change. (Legend of Drizzt: Sojourn, R.A. Salvatore)