The Silver Legion, led by the Neberu Archduke Asmodeus, was dedicated to uncovering the secrets of God and the Angels still loyal to him. They also had the duty of bypassing all taboos, whilst seeking the hidden truth therein.
They acted also as teachers of Mankind, telling them celestial secrets and hoping to help them fulfill their divine potential.
The Silver Legion, alongside their leader, was the first legion to turn away from Lucifer's goal. Their base of operations was the city of Tabâ'et, said to be a maze of towers and chimneys that gave off noxious smoke from the laboratories it housed. As the war against Heaven raged on, it became a place of cruel experimentation on human test subjects, among its creations being the "Wall of Breath" and "Towers of Flesh".