Nethrandamus

Nethrandamus is Altruis the Sufferer's nether drake mount.

Players fly on Nethrandamus during the quest Survey the Land (quest), where he takes players on a tour of the Forge Camps of Nagrand.

While Altruis appears in Legion, Nethrandamus does not. However, Nethrandamus' Zephyr is a reward from Dark Revelations.

In Hearthstone
Nethrandamus appears as HS Nethrandamus (a legendary card) in the HS Demon Hunter Initiate (initiate set) for the demon hunter class in Hearthstone. His flavor text reads: "Missed the HS Descent of Dragons (big descent) with the other dragons. But better late and nether!"