darkhallow1

"Like a lot of things. The necromantic energy around animated corpses and manifested shades. The predatory spirits of ancient hunters. All the fear that's been growing since last night. Plus, the past several years have seen some serious magical turbulence around Chicago. Kemmler's disciples can put that turbulence to work for them, too."
"Then what?"
"They gather it together and get it going in a big circle. It creates a kind of vortex, which then funnels down into whoever is trying to consume the energy. Poof. Insta-god."

"Not at first. But when the wizard at the vortex draws down the power, it's going to create a kind of vacuum where all that power used to be. The vacuum will rip away the life energy of everything within a mile."