[AlexanderHowl]

Western ceremonial magical practice divides magic into three colors: white (information magics), yellow (beneficial or defensive magics), and black (malevolent or offensive magics). Offensive spells that would deal direct damage to human beings would be seen as the blackest of the black, as the intent is to use magic to kill rather than to hinder

Such a perspective is sadly lacking in most RPG systems. I think that it would be interesting to have white magic cost FP, yellow magic cost FP or give Corruption (depending on the intent of the spell), and black magic give Corruption. If a 9d fireball ended up giving 9 Corruption rather costing 9 FP, players might be a little careful it using magic for combat. In that case though, I would give missile spells a comparable range to information spells, just to make things fair.