Rhinox (Armada)

Rhinox is an Autobot from the Unicron Trilogy series.

Animated Continuity
In one of the final episodes of Armada, Rhinox could be seen piloting a starfighter in defense of Cybertron against Unicron. He had no lines.

Armada/Energon Comics
Consumed by the will of Unicron, Rhinox went from being a dependable warrior to one of the Chaos Bringer's Four Horsemen-- complete with a horse. His Mini-Con partner, Armorhide, was loyal to the end.