Molydeus

When Tharizdun discovered the shard of utter evil and buried it in the elemental chaos, he charged seven angels with the protection of his treasure. The celestial beings were naturally, obedient, to the wishes of the god, but were unsure if they were doing what they should in listening to the scheming Deity. This left them frustrated and angry. Proximity to the shard caused their forms to violently wrench apart, turning them into the powerful two-headed demons known as the Molydeus.

Physical appearance
A Molydeus is a Giant sized humanoid with a light shade of red-orange skin. It has pawlike, three-toed feet and clawed hands, and is extremely muscular. When remade by the evil of the shard, their skull changed to resemble that of a wolf's or jackal's, symbolizing their rage and fighting ability. From the back of their heads sprouted a serpent with a curiously spined head, symbolizing the angels mistrust of their master and uncertainties about their given task.

Encounters
A Molydeus is typically found alone or with only a small entourage of lesser demons typically mariliths, which the ex-angels enjoy working with. A Molydeus might take Balors, kluirichirs, or other powerful demons, or it might be the enforcer of a demon lord. Molydeus rarely last long on the job however, and typically leave their posts violently.

Combat and weapons
The heads of a Molydeus take turns biting a foe in combat, while at the same time the demon strikes with it's great-axe and finishes off a particularly tough target with Dread Word. A Molydrus is bound to it's battle-axe, a tool containing the raw light of creation from when the demon was an angel. If seperated from it's weapon, the demon will become mad with rage until the axe is recovered or the molydeus can make a new. If a Molydeus is slain, its weapon dissolves in to a puddle of ichor.

Ecology
A molydeus may be hired by another demon of higher rank, such as a balor or a demon lord, to destroy a specific target, however their most common behaviour is to roam the Abyss looking for demons to enlist into the blood war, any that may have deserted the before-mentioned war, or simply finding intruders and punishing them however they want. Another common position for them is to be one of the many generals of a Demon lord, and due to the fear and power they command they often rule many, many demons as if they were demon lords themselves.