Fate is feared because it is elusive.
The demon hunters, whose mission was to hunt down the unusual creatures, had a vampire sage among them who was regarded as a savage beast by various supernatural races. They used to be a conservative and cautious race. The Godslayer¹ had made the demon hunters' innate hostility become a more powerful killing instinct, changing their way of thinking semi-permanently. It also brought peace as well as prosperity to Coldpath, which was also a prison that imprisoned them for 6,000 years.
The one who knew all these secrets was the guardian giant, Mimir.