Horus Campaign

This is all we ever see of it.

The Horus Campaign was a series of battles waged in and around the Argos Cluster. The primary participants were Horus, a powerful bio-synthetic warlord who controlled the cluster, and Shokaract, a powerful Predacon who wanted the cluster for himself.

Fiction

3H comics

Shokaract's initial attempts to seize the cluster failed with the loss to two Heralds, sixteen Reaver divisions and over fifty thousand drones. Two of his Heralds, Antagony and Cataclysm saw an opportunity for advancement in Shokaract's army by being the one to bring down Horus. Antagony set up a series of diversions in the Falcon Nexus and a Crab Nebula so she could sneak aboard Horus's flagship on a stolen Helioflyer and engage the enemy in single combat. While Antagony and Horus fought, Cataclysm took the opportunity to blow up the sun, decimating Horus's fleet and depriving him of his power source. Antagony, though injured from the explosion herself, finished off Horus with a pincer through the brain before collapsing. Herald