I am here to point out possible classes of magic users there are two that I believe exist. three actually.
1. wizard. someone who uses spells
2. witches. I believe these are those with innate magical ability.
3. sorcerers. the have-nots. those who lack magical ability themselves, but acquire it through the use of catalysts, potions, and talismans. I seem to be in this category as it seems to be the only path.