Motoko asks, "What was the Reaver War?"
Anno says, "The one other case of Cross-Universal invasion into our universe. Foolish experimentations involving Primal Chaos and Abyss Monks opened a rift between our universe and another Chaos, which tried to use the rift to invade. It was very bloody, and it only really ended because the rift eventually healed itself with some encouragement from me and House Tremere, who were of great assistance."
Anno says, "They were led by Krull the Reaver, who was the King of that Chaos. Thus the name."