The Impervious

The Impervious is a Horde zeppelin that was part of the air fleet formed to fight in the Twilight Highlands along with Spear of Durotar, Heart of Orgrimmar , The Indomitable, The Skyshredder, and Garrosh's Airship. It was destroyed by the twilight dragonflight before it could reach the naval fleet off the west coast of Dragonmaw Port.