The Key of Rules is very hard to obtain outside the Wizard Organization; very few ever circulate.
Even if some do circulate, they mostly appear at auctions, and without significant financial power, you can't secure one.
The price at each auction varies, all depending on the number of competitors at the time, leading to huge price differences.
If you're lucky and there's not much competition, you might secure one for a couple of hundred thousand Magic Stones.
But if someone is determined and financially capable, the price could skyrocket to astronomical figures.
The Key of Rules is extremely crucial, not only for what a Crystalization Wizard needs for advancement but also for what a Level 2 Wizard needs to comprehend the Rules.
Crystalization Wizards and Level 2 Wizards are both the backbone of all major forces.
This makes the Key of Rules highly sought-after and exceedingly difficult to obtain.
