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Colicoid Swarm was a modified Trade Federation Providence-class carrier/destroyer in the Confederate Navy. The vessel was colored a bluish grey, with subtle red bow stripes and dark-toned keel, nose, and structure.
The Colicoid Swarm was a sister ship to General Grievous's flagship, the Invisible Hand, and—along with the Lucid Voice—was used to intimidate the Republic into surrendering. With the Swarm's grey coloring, the ship was similar enough to the Hand in spite of its dark hull tones and red bow striping—which was different from the Hand's yellow markings. This led victimized worlds into believing that they were being attacked by the Invisible Hand—and therefore Grievous himself.