The Supreme Commander is responsible for managing all of the lower commanders, such as Commander Veldaban and Captain Lawgof. As the Black Guard's leader, he is also responsible for making many of the army's larger decisions, mainly concerning the management of funds.
Bisi is currently stationed in Keldagrim, hidden in the Black Guard headquarter's upper level. Guarded by several Black Guard Berserkers, he is often overlooked by visitors. Upon completion of The Giant Dwarf, he also begins to investigate The Red Axe, but he loses Commander Veldaban after a particularly tense disagreement over how to contend with the Red Axe. He subsequently appoints a successor.