“There are many elements required to create a Divine Spirit. …Add, you know about them, right?”

“Ihihihi! It’s not every day I get called on by the teacher!” Came an excited voice from the hook at my right shoulder.

“I find it rather apt that your seal is similar.”

“Haha! Yes. Rhongomyniad’s no ordinary Noble Phantasm. It’s very close to the origin of the planet(TN: Or possibly the stars). If this seal had never gotten smacked onto it, the user would gradually become a Divine Spirit.”

That was why Add existed. The gravekeepers before me said that it was necessary to seal Rhongomyniad away. I had thought that it was simply because the Mystery inside it would fade away. I had never known that there was another purpose.

“The problem is, it never affected King Arthur in the decades that she owned it. There are no substantial affects to using Rhongomyniad within a human lifespan. All it does is make the wielder ever-so-slightly more like a Divine Spirit.”

“Exactly. There just isn’t enough time,” my mentor said, taking over from Add. “It takes an enormous amount of time to make a deity through receiving worship and divine energy. Faith also needs to spread throughout the population, which requires even longer.”

Lord El-Melloi II's Case Files: Grand Roll (Middle); Chapter 3, Part 4