Annihilator served as the mobile headquarters for Atha Prime on the go. Functioning as a launch platform for his Clone Warriors, it was designed to look like a pair of conjoined Star Destroyers. Apex Invader, Prime's personal starfighter, could dock on the Annihilator, supposedly providing the ultimate high-ground command position during combat.
This Annihilator concept was intended as a vehicle within The Epic Continues, a proposed expansion of Kenner's Star Wars toy collection that was never actually produced.