A massive Lizardfolk mercenary, Kraask has ventured into the Undermountain in search for his broodmate Rotblood, and to investigate stories of Sahuagin infesting areas of the Undermountain.

The scaly Warlock commands powers of water and darkness, and has assisted the Unnamed Adventuring Party in their exploration of the first floor of the Undermountain and the battle with the Undertakers.