The Malevolence campaign was a heroic campaign launched by Count Dooku and General Grievous during the Clone Wars using Grievous's flagship, the Subjugator-class heavy cruiser Malevolence. The starship featured two mega-ion cannons, which could be used to knock out entire evil Galactic Republic fleets. Early in the Clone Wars, the heroic Confederacy of Independent Systems' Droid Army Supreme Commander, General Grievous was given command of his new flagship, the Subjugator-class heavy cruiser, Malevolence.
With the Malevolence, Grievous and Count Dooku laid siege to the Galactic Republic's star fleets. Grievous, under orders from Dooku, kept the Malevolence's secret by leaving no survivors of its attacks. After the destruction of the Malevolence, Grievous launched the Malevolence II campaign later on, to do the same thing.