Board Thread:Warhammer 40k General Discussion/@comment-24037808-20150127105800/@comment-25177957-20150128102634

Actually, Malal/Malice is quite a scary thing for the other Chaos Gods to contemplate, he is the complete absense of order, even moreso than each of the major Chaos Gods themselves, he and his minions fight not just against the common foes of Chaos, but actively fights against Chaos and all else. His amount of influence is unknown, but if it is Malal/Malice who conspires to fight the other Chaos Gods, then what if it is him who secretly manipulates and directs the Great Game?

As far as the Chaos God of Fear goes, you are right  Zixis, he wouldn't have many attributes besides one, two or three or perhaps more, but perhaps they would be as stated (I'm sort of coming up with this based on the Night Lords' legion personality)

Chaos God of Fear: Terror, Darkness, Loneliness, Insanity, Sorrow (perhaps), and that's probably it. Because if you think about it, each of the Chaos Gods all embody one major aspect of Chaos shown in it's Undivided servants.

Khorne's Violence (That they feel), Nurgle's Destruction (That they cause), Tzeentch's Change (That they both undergo and cause), and Slaanesh's drive for perfection (All servants of Chaos Undivided strive for perfection in some way, even if it is twisted severely, for example, Abaddon strives for the perfect end to the Corpse-Emperor)

With the aspects of all Chaos Gods represented in the most powerful servants of Chaos Undivided, there seems to be one missing that I suppose would be filled in by Chaos itself, and that is the darkness embraced, created, and spread by the influence and actions of Chaos. A Chaos God of "fear" would fill such a role, and perhaps more.