Alright, I've been away awhile. New project. 
Anyway, can anyone suggest a way (or something else to look at for an idea) to have a spell selection dependent on having at least two other spells with that same spell descriptor? (i.e. I have a custom tag set in the "Descriptor(s)" section, and I want a prerequisite of having two others with that same tag).
Anyway, can anyone suggest a way (or something else to look at for an idea) to have a spell selection dependent on having at least two other spells with that same spell descriptor? (i.e. I have a custom tag set in the "Descriptor(s)" section, and I want a prerequisite of having two others with that same tag).