From Halopedia, the Halo wiki
Rukt was a powerful Jiralhanae chieftain of the Rh'tol skein. Rukt eventually claimed the warhammer, and later namesake, Fist of Rukt from roaming bands of marauders. He initiated the First Immolation, a decade-long civil war that devastated Doisac and shattered the Jiralhanae's nascent rocket-based, interplanetary civilization. Throughout the war, Rukt and his descendants killed thousands of Jiralhanae with the Fist of Rukt as they battled opposing clans across Doisac.
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