Khorne's not big on Sorcerers. Kind of goes against the whole "GOD OF WAR, VIOLENCE AND BLOOD" thing. Tzeentch is the Sorcerer one.

In fact, to quote the Lexicanium: 

[quote]The name "Khorne" derives from his Dark Tongue name, "Kharneth", meaning "Lord of Rage" or "Lord of Blood". [b]Although Khorne despises the use of magic and accordingly hates Tzeentch[/b], Slaanesh is his opposite. Khorne and Slaanesh personify two entirely opposing aspects of Chaos, and Khorne considers Slaanesh a weakling without martial pride or honour.

Images of Khorne show it to be a mighty being, sitting upon a great throne of brass atop a mountainous pile of bleached skulls centered in a lake of blood. The skulls are of all those slain by Khorne's Champions, and of all his slain Champions. The mountain slowly grows ever higher.

Khorne is said to have inherited a martial nobility and honour, and considers the weak and helpless to be unworthy of his wrath.

His associated number is eight, reflected in the organisation of his armies, and in smaller matters such as the number of syllables in a daemonic follower's name.[/quote]

Emphasis mine.