Azhag began his life in 4th edition Orcs & Goblins armybook
and got his miniature a bit later then other greenskins.
We also had a 1993 WD battle report during these times (before Azhag got his own miniature, so the battlereport had the generic Wyvern Warboss).
Source: White Dwarf#157 (UK)
Noteworthy: Azhags Wyvern had a different name back then.
6th edition armybook had this short story.
In 6th edition the armybook included just the two new guys, Grimgor & Wurrzag. So the older special chars got updated rules over the GW homepage.
Now we jump in time to 7th edition in 2009. Azhag gets a brand new miniature.
And that of course sparks some new White Dwarf information.
Source: White Dwarf#357 (UK)
Noteworthy: That it is mentioned that Azhag bound the slain to his will and send them against his enemies.
Source: White Dwarf#358 (UK)
In 8th edition apparently they also remastered the old Osterwald battle for modern times armybooks (right to start of the new rulebook. So no new armybooks yet, explaining the absence of Arachnarok or Demigryphs)
Source: White Dwarf#367 (UK)
Azhaghs story, 8th edition Orcs & Goblins armybook.
In 8th edition, when "Storm of Magic" hit and GWs plan was to sell extra monsters and units to people who had "finished armies", one of the more intriguing ideas was to add Undead for Azhags use.
Source: White Dwarf#380 (UK)
Azhag is in TWW since the start.
While initially his starting position in Black Crag was problematic, that was fixed with the greenskin rework. Also not perfect now but it works definitely better. Since Arkhan and Alarielle came with "mixed troops", and I still hope for something along those lines for Morathi in game#3, I always wondered why they did not did something similar with Azhag here. Interestingly enough, Alarielle was the last with such a "mixed unit" approach. Maybe they dropped it overall, or we get a better refined approach later in game#3 with Whomever. Does Azhag need undead units? No, certainly not. But it would work within its lore and could further keep him a bit different from regular greenskin LL.
When CA added Nagashizzar in ME, it was more for certain Undead LLs to get a flavor text there. Afaik Azhag had no special text then. But that came later with the greenskin rework.
It is just a nice nitpick since the ambition of the crown was always to get back to its master, who waits in Nagashizzar (Yes, clearly Lord of the Rings). It still might be interesting what might happen to Azhag *if* Nagash would actually be added in game#3. I mean, a Nagash questbattle to get his crown from Azhag is already written on the wall then. But, would other things change for Azhag, maybe coming with a 2nd greenskin rework? Time will tell.
UndeadThe Ivory RoadOlde Weirde's Incunabulum 3of525 most influential Warhammer characters