The Dreadhorde is host to particularly skilled orators and dark mages, able to insidiously infect the minds of the common folk. Regions where the Dreadhorde passes are always afflicted by more Cultist Cells than they otherwise would be.
At the start of the World Event and Recovery Phases, the Dreadhorde deals 5 damage to the Stability of the Region it is located in.
Any time the Dreadhorde uses an Action that would deal damage to the Stability of a Region, that damage is doubled.