The Dread King was the prime entity and the greatest of the Dread. Residing in the 6th circle, the Dread King was notable for being unstoppable. The Dread King's power was immense and presented such a massive danger to the universe that Tomas had to die in order for Ashen-Shugar to be reborn. Ashen-Shugar was then locked in time with the Dread King via a spell by Pug which cost him his life.
Draken-Korin was terrified of the Dread and fled their power. The Dread King has always been a menace to the universe and is a destructive entity that wants to see nothing but the universe changed back to the way it was.