The Virus

The Virus is the deadly parasitic material contained within a power-house, constructed by Marcus Octavius and his chief scientists. It served its purpose in the animated film, Highlander: The Search for Vengeance, by being used by the Roman Emperor to eradicate all of the living life-forms in a city of the size of New York City, before it was terminated by Colin MacLeod, who killed Marcus, allowing the "Quickening" ability to cancel it's effects. It also appears in the finale of Heroes vs. Villains War, assuming the same role as it was in the original film, although it is primarly used in the Holy Land's region, before it was stopped by Aladdin's task-force.