User blog comment:IamJakuhoRaikoben/Chapter 241: The Power of "Life", Review./@comment-111.95.103.69-20110706093543/@comment-4078901-20110709075717

I kinda agree with the three Masters-three Fairy Magic theories. Mavis Vermilion knows one, Fairy Glitter and Makarov knows another one, Fairy Law. It is highly possible that with each succeeding master, a new Fairy Magic is introduced that magnifies the power of that master. Although Hades knows Fairy Law that he devised as Grimoire Law, it is also possible that all the masters know the three Magic.