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		| B0rsuk said: Yes, it's fully fictional. But assuming that modding commands get a little extended (it's already possible to mod spells somewhat) it could be possible to make the spell give negative astral bonus.
 
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 I would be pretty surprised if you could mod a spell of this type into existance.  Mods generally allow you to change the behavior of existing game functionality.  I know of no functionality that does this.