This may be a euphemism for a more formally named clan, such as the Shadowmoon clan, who might have included necrolytes in its ranks. Perhaps it merely refers to the necrolyte class as a group, not unique to any clan. It is even possible that there was in fact an early clan in the Horde called the Necrolyte clan. This possibility is what is implied by Warcraft: Orcs & Humans, but later sources contradict this. If so, this clan may have later evolved into the Shadow Council, the Stormreaver clan, or a similar group loyal to Gul'dan. In Warcraft II: Tides of Darkness, the necrolytes are a subgroup within the "Warlock clans".
It is possible that this Clan appears in Warlords of Draenor; however, this is doubtful because the clans aren't corrupted in the expansion. This clan shouldn't exist if it didn't exist before the formation of the First Horde.
Similar confusion surrounds the rarely-mentioned Warlock clan(s).
- See also: Necrolyte