Vorshrakra Destroba

The ritual used to blot out the sun, found in the Book of Vile Darkness. To do the ritual, you would need to do the following:
The ritual requirs the Blood of 5 different types of elves, the tear of an angel, the skin of a demon lord, and about 10 live sacrifices, and an urn made from Duergar eyes. Upon completion of the ritual, and when the blood of the sacrifice victims are poured into the urn, a great and evil darkness will cover the land. Everywhere in almost a 5 mile radius, the sun would look like it is under an eclipse, the sky would become instantly more cloudy than normal, the weather is always calm, the temperature is always 50^o degrees fahrenheit (10 celsius), and is almost always dry. The area is always and always will be like this, even if the conditions outside of the affected area are the complete opposite conditions. This Ritual can be countered by the "Blightras Menor," found in the Book of Exalted Deeds.