Karax is a selectable commander in the Co-op Missions mode of Legacy of the Void, added in the 3.1 patch. He utilizes an array of advanced protoss weaponry and Purifier-type units to yield an army of robotic attackers, and has access to the Solar forge, which can be upgraded to enhance the Spear of Adun's abilities. All of Karax's combat units have a 50% increase in their resource costs, but fully upgraded they are very effective. He is overall more of a support commander, using his chrono abilities to improve production times for him and his allies, building static defenses to defend points of control, and utilizing the Spear of Adun's powers to attack from afar. However, he is still perfectly capable of fielding a powerful army if required.