Twilight Lord D'Sak is the author of one of the True Believer articles issued in Silithus as a part of the Twilight's Hammer clan's web of communication. His title implies that he is a high ranking member of the cult and its affairs. He can also be traced to an item known as Globe of D'sak, which can be found carried by a Spirestone Lord Magus in Blackrock Spire. If D'sak were a servitor in the old Horde, then that could also explain one of his possessions being found in Blackrock Spire amidst the Dark Horde.