Void Mist

in Twilight's gleam peace shall end
The Void Mist is a mysterious and evil entity that has brought the age of Eternal Light to a close. It appears as an ethereal and magical darkness plunging the world into eternal twilight. It can take corporeal forms as intelligent and malevolent creatures of varying intelligence and strength.

The Void mist is the primary antagonizing force facing the Companions.

Fear:
a black armored death knight who rides a flying serpent

Grief
a naked wailing hag that spawns void children from umbilical tendrils

Rage
A giant of a beast that can transform into a gargantuan Bearlike beast.

Spider Eyes
giant walking eyes with thin spindly legs

Claw Walkers
10 foot tall lumbering beasts with giants claws and hollow eyes

Void Children
tiny gremlin like creatures that spawn from Grief.