Black Doom (Prime Zone Post GW Timeline)

Early History
Black Doom was the cruel leader of the hive-minded Black Arms alien race, a species of parasites that travel from star system to star system in the Black Comet in search of alien populations to consume. Fifty years prior to the current war on Mobius against Dr. Eggman, Black Doom made contact with Professor Gerald, helping him to create Shadow the Hedgehog