From Halopedia, the Halo wiki
Odanostos was a Jiralhanae chieftain who served the Banished as one of Atriox's best warriors. He wielded the gravity hammer Oath of Fury. At some point prior to September 2558, the Banished came into conflict with Chieftain Hekabe's clan. In the ensuring engagement, Hekabe pried Oath of Fury from Odanostos' grasp and used it to execute the rival chieftain in front of fellow Banished warriors. Afterward, Hekabe took Oath of Fury as his own gravity hammer.
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