[PKMN] SPACE CASE!

[knux400]

Moon Stones actually have a similar atomic structure to other evolutionary stones, despite being from the moon. It's hypothesized that the minute differences in the structure and composition of the stones are what allows them to interact with different Pokemon. In theory, it might even be possible to make a "custom" stone for a specific Pokemon, tailored to their biology as well as their identity and personal needs. Made-to-order evolutions! Fun, but scary.

[Pichi2214]

Fairies are from the moon, and exposure to moonstone was the cause for some diverging evolution lines introducing fairy types into this world. It is theorized that while moonstone is largely associated with the fairy type and related evolutions, you could theoretically use its stronger potency in combination with other evolution stones to influence the typing of an evolution. This would make it possible to induce a type variant in someone as they evolve, or potentially alter an unwanted type variance.