From Halopedia, the Halo wiki
Chainbreaker is a gravity mace and the signature melee weapon of Atriox, a Jiralhanae warlord and the chief of the Banished. Atriox created the energy mace from parts of a Type-2 gravity hammer. When activated, the weapon produces three red, blade-like protrusions, and like the gravity hammer, can forcibly attract individuals. The weapon acts as Atriox's symbolic scepter, also serving as the inspiration for his organization's emblem, the Mark of Atriox, when viewed from above.
Chainbreaker is available for purchase on the Xbox Live Marketplace as an avatar prop.
List of appearances