The last immortal Runelord of Greed who ruled for many years over his city of Shalast, an integral part of the lost Iskari Empire of Iskandar.

He is believed to have been destroyed, along with the other six Runelords during Skyfall. Karzoug was a specialist in "Greed-Magic" (now called Transmutation) and was said to have been a powerful arcane knight. Karzoug fought several wars against his fellow Runelord, Alaznist, who he vehemently hated.

Like all seven Runelords, Alaznist had a loyal apprentice; Rorskan. His fate is also unknown.