User blog comment:Onic14/Nature of the Slayers/@comment-24934658-20140728223848/@comment-25231730-20140730194904

My theory is that God Slayer Magic can bee, like Dragon Slayer Magic, learned in Generations. First Generation God Slayers wore taught by the Gods themselves, while Second Generation God Slayers learned it from books or other sources. This may be possible due to the fact that, like JohnnyN64 said, this Magic cannot reach its true potential unless it is taught by the Gods themselves. Also, to clarify MintChoi’s confusion, I believe that God Slayer Magic, being stronger than the other Slayer Magic (logically: Dragon – Devil - God), will provoke changes to your body, no matter how it’s learned.