The Amon Brood or Amon's Zerg was a zerg brood that served the fallen xel'naga Amon. They were subjugated from former feral zerg groups outside the control of the main Zerg Swarm such as those left on Aiur after the Overmind's destruction. Its ranks included several older zerg strains no longer used by Kerrigan's Swarm, such as the airborne queen, the scourge, the guardian, and the corruptor, along with more recently-developed breeds, including the viper and the swarm host. Amon's hybrid frequently led these zerg into battle.