Dreadlords always try to stay true to their namesake whenever possible, and Varimathras is no exception.
Give him an opportunity to instigate fear and isolate his prey, and you won't need to ask twice.
But sadly, when a Dreadlord faces a tight-knit group of betting buddies that huddle together like for a rugby scrum, he resorts to less elegant moves. A spreading Plague, Varimathras, really? As if the Forsaken hadn't learned their lesson from that one a while back allready.
Nevertheless, someone had to shoulder this contagion for the rest of us, so we figured we might as well sacrifice Jasus and let him carry the plague (and the fight).