|Expansion||Empires of Kunark|
Kor-Sha Laboratory is a zone in Empires of Kunark expansion.
The Kar'Zok have a deadly aura, Aura of the Kar'Zok, and the Kar`Zok Overlord also has Gust of Atrebe. These will pretty much kill you. However, you can gain immunity to them by completing the quest Methods of Sarnak Destruction. In order to request Methods of Sarnak Destruction, you must first complete most of the Empires of Kunark group progression.
Once you complete Methods of Sarnak Destruction you gain the achievement Essence of the Dragon I (Group), which grants immunity to Gust of Atrebe and Aura of the Kar'Zok.