Necrolyte Clan

From WoWWiki

Early orcish discourse on the makeup of the Orcish Horde of the First War mention a Necrolyte Clan in reference to the necrolyte class.

This may be a euphamism for a more formally named clan (such as the Shadowmoon) who might have included necrolytes in its ranks, or perhaps it merely refers to the necrolyte class, not unique to any clan. It is even possible that there was in fact an early clan in the Horde called the Necrolyte Clan, which may have later evolved into the Shadow Council, the Stormreaver Clan or a similar group loyal to Gul'dan.

Similar confusion surrounds the rarely-mentioned Necromancer Clan and Warlock Clan.

See: Necrolyte