Tricephalos

Gladius, Beast of Night also know as Tricephalos. It's a massive, demonic wolf that wields a greatsword on a chain and launches fireballs. Gladius can split into three one-headed wolves, but only the original retains the sword. The lore suggests Gladius was initially feared and exiled, but found acceptance with a man who didn't fear it, forming a bond that persists even in death. Gladius is a three-headed wolf, a creature of shadow, and is named after a type of sword. It's described as having an extra set of forelimbs and can split into three separate one-headed wolves. ~~~~~~~~~~~~~~~~~~~~~~~~~~~ *'A many-legged beast appearing from shadow, carrying on its back a chain-link sword used to hunt its prey. Between the fangs of its many heads flicker overwhelming flames. When assailed by multiple shadows, only sacred light can hinder the hunt.'*