During his never ending war against the evil in the universe, Sargeras became increasingly depressed by the chaos he saw wrought by all kinds of evil. Sargeras was forced to contend with the Nathrezim. A dark race of vampiric demons (also known as dreadlords) who turned whole nations against one another by manipulating them into blind hatred and mistrust. Sargeras defeated the nathrezim easily, but their corruption affected him deeply.