Some questions from a newbie

[Willburn]

Yes I know about the half reduction and 1/3, as I said this is on page 86-87. But the manual makes no explenation if this is for every spell or only for spells with the - at the end of the fatigue cost. So thats my question. If its for every spell then why the - mark? There must be somethign special with those spells since they have it.

And im still puzzled by how to know what each + adds. This isnt mention in the manual and the spells2 spreadsheat didnt make that clear either. (the modding link)

And regarding scripting mages: So if i set it to attack closest it will fire off range 1 spells when it gets into melee? Or will it just use its melee attacks?