It turns Necrofire into normal fire which then in turn can be extinguished by normal means. A well-documented incident of ' blood rain' happened in 2001 in the southern Indian state of Kerala. But it can travel longer distances and fall in areas like Scandinavia. It is more common in southern Europe like Spain and the South of France, which are closer to the Sahara. To use the skill you'll need to have a point in each of these schools.
To make and use Rain of blood you need to combine a low tier hydrosophist and a low tier necromancy books together via crafting.
