The Blightstorm is a constant, escalating threat. Its primary 'attack' is increasing Hostility, which lowers villager Resolve and makes glade events more dangerous. To 'defeat' it, you must earn enough Reputation before your settlement collapses. This requires a multi-faceted approach focusing on efficiency, Resolve management, and strategic resource use.
Key strategies include: minimizing woodcutter numbers during the Storm season, having a robust food and luxury goods supply to boost Resolve, quickly resolving glade events to prevent negative modifiers, and leveraging Cornerstones and Perks that reduce Hostility or increase Resolve. Don't be afraid to sacrifice some resources to keep your villagers happy during critical moments.