Today’s Galarian variant Pokémon, Yamask and Corsola, are both Ghost-types, and they have some pretty different ideas about what that means. One is an ancient curse, supposedly the twisted remnants of a long-dead human corrupted by mysterious dark magic; the other is older still, the revenant of a prehistoric extinction event whose lasting effects on the Galar region we can only begin to trace. This piece might feel a little different from the others in this series, because it’s difficult to talk about Pokémon “adapting to the environment” of a new region when those Pokémon are dead and the environment is literally magic. But Ghost Pokémon consistently have really interesting lore, and there’s some cool stuff to dig into as we investigate the inspirations of these Pokémon. Let’s take a look.
Yamask and Runerigus

Unovan Yamask are tragic Pokémon, with some of the saddest backstories in the Pokédex. Yamask are supposedly the spirits of dead humans, and each one carries a clay mask which is said to represent its human face. They retain memories from their human lives and weep for their loss, their masks a constant reminder of their eternal sorrow. Which is, as the expression goes, a bummer. Once it evolves, Cofagrigus has a pretty different attitude, becoming a spiteful tomb guardian who devours grave robbers with a crazed grin on its face. Although its mask is still there, set into Cofagrigus’ forehead, according to its new Pokédex entry in Sword Version, “people say it no longer remembers that it was once human” – as if its curse has overtaken it completely. Now, Galarian Yamask… don’t have masks. Instead, a Galarian Yamask’s tail is embedded in a chunk of what looks like carved stone but might in fact be clay, since its Pokédex entry makes reference to “a clay slab with cursed engravings [that] took possession of a Yamask” (this mention of clay is the only reason I can find for Galarian Yamask to be Ground/Ghost rather than Rock/Ghost, since from every other angle these Pokémon appear to be rocky). In the case of the evolved form, Runerigus, we get a troubling line about “absorbing the spirit of a Yamask” to animate the painting on the surface of its body. Just like Unovan Yamask eventually succumb to the curse that strips away the last of their remembered humanity and transforms them into Cofagrigus, something has taken over this Yamask spirit and is gradually turning it into a malevolent force… but what?
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