[@KiltmanBagz] So there is a mechanic to the focus items then? I've only encountered Dresden (staff, rod) and Elaine (rings and bracelets). Dresden had a though about having smaller items, so I sort of wondered "Why doesn't he? Apart from the theme, a smaller item would be better in every way. Or does it have to do with intricacy in some way?

Anyway, double focus seems to make sense. The terramancy would come out as a general spell then? Just point, shoot and run away? 

EDIT: Thank you for your help, I really appreciate it.