Thanks! I really appreciate the feedback. I tried to simplify as much as possible, so you're correct about things being left out. Feel free to hack the game and add in things like additional spells or wand types – neither of those would "break" the system
During my family game of this we found lists of different wand woods, cores, and lengths and just rolled extra dice for them then had attributes separately. That seemed to cover those bases. There’s another system we tried that actually gave proficiency in certain spells or charms depending on the core, so we added elements of that as well.