Once a young warrior of the Brass Tribe, Mirak's prowess in battle was unparalleled thanks to the unique sand bending techniques he learned from Kairus' father, Kuatal. These techniques allowed him to grow significantly in size and strength, transforming him into an immensely powerful mystic warrior. Under the tutelage of the twin hags, Frieda & Ragna, Mirak honed his abilities alongside his friend, Azael the Warlock.
When Karthus Wargrym and his Rift-Reavers descended upon the Brass Tribe, Mirak was among the first to rise in defense of his people. As the assassins struck with deadly precision, Mirak grew to his full titanic size, using his sand bending abilities to create barriers and strike back against the intruders. His immense strength and mystic prowess made him a formidable opponent, and he fought with relentless determination to protect his tribe.
Despite his incredible power, Mirak was ultimately no match for Karthus' blood-induced rage. The warlord's brutal efficiency and the dark power bestowed upon him by Bhaal, the god of murder, proved overwhelming. Mirak fought valiantly, his sand constructs clashing against the Rift-Reavers' blades, but in the end, he was outmatched. Karthus struck Mirak down with a devastating blow, the titan's body collapsing amidst the sands he once commanded.