Jiralhanae are born with an inherent contempt for weakness, and it drives them to seek power. In some, this takes the form of great feats of strength; in others, a relentless ambition—but Sidonus knows true power lies in information. It gives him control of situations, of people, and of his kin's inherent rage—the last of which makes him so adept at acquiring it in the first place. Nominally, he serves the warlord Attilus, and the greater cause of the Covenant before him, but his true loyalties remain as inscrutable as his past before entering the Covenant military, by which point he was already a clearly experienced spy. Who or what made him, matching Jiralhanae strength with a calculating mind, may never be known, as Sidonus is a being of few words—none at all, in fact.