The Veilstorm

The Veilstorm is a cataclysmic supernatural event that occurs periodically in your world. It manifests as a massive, swirling tempest of dark energy and ethereal mist. It is named the "Veilstorm" because it blurs the boundaries between the physical realm and the spiritual plane, often referred to as "the Veil." When the storm descends upon an area, it brings with it terror and chaos.
Frequency and Predictability: The Veilstorm appears once every few decades or centuries, making its timing unpredictable. Legends and prophecies may hint at its approach, but the exact date remains unknown until it begins to manifest.
Supernatural Chaos: During the Veilstorm, supernatural creatures are unleashed upon the world, wreaking havoc. These beings can range from vengeful ghosts and restless spirits to ancient, forgotten gods seeking to reclaim their power. The presence of these entities creates an atmosphere of fear, as they possess the ability to possess or manipulate the minds of unsuspecting individuals.
The Calming Ritual: To prevent the Veilstorm from causing widespread destruction, ancient orders of mystics, known as "Veilwardens," have studied the storm's patterns. They have devised a powerful, complex ritual to calm the storm and restore the balance between the physical and spirit worlds. The ritual requires specific artifacts, unique knowledge, and the cooperation of skilled magic-users from various traditions.
Impact on the World: The Veilstorm leaves lasting consequences on the world. Each occurrence reshapes the political landscape, as nations compete to access the Veilwardens' knowledge and control the outcome of the storm. Additionally, the survivors and witnesses of the storm might experience long-term psychological trauma, giving rise to new superstitions and cultures.

Manifestation

The Veilstorm forms suddenly, seemingly out of nowhere, as dark clouds gather and engulf the sky. Thunderous roars echo, and flashes of ghostly lights flicker within the tempest. As the storm intensifies, the boundaries between the physical and spirit worlds weaken, allowing malevolent spirits and entities to cross over into the mortal realm.

Localization

Typically when the Veilstorm strikes, the area that is engulfed is temporarily transformed into dead-magic zones that last for a decade. Though some areas are rendered permanently a dead-magic zone.

Type

Metaphysical, Supernatural