This is a spell that can not only destroy normal altars, but it can also damage the Bone Altar and the Altar of Three. This spell requires 20 favor to cast against normal altars, but 80 when cast against the Bone Altar or Alter of Three. It will give you rather nasty wounds if you fail in the cast.
Destroying the main WL / BL altar
To be able to destroy the black or white main altar it is imperative that the following requirements are met :