The Demon:

A primal, elemental presence,
The Demon is forever wreathed in smoke and flame.

Fire pours from his mouth,
and his eyes glow like hot coals.

The Demon represents anger, destruction and vengeance -
but he weilds his power mostly in the pursuit of justice.

The least friendly of the Elder, the Demon rules through fear and punishment,
and as such, is counterbalanced by the Star-Bearer.