The official Spanish website for Pokemon Sun & Moon may have accidentally revealed the key to evolving the Ice-type Alolan Vulpix: an Ice Stone.
In a thread about the new trailer released today, Spanish-speaking Redditor sable-king noticed “piedra hielo” in the footage. “Piedra hielo” translates to “Ice Stone” in English. You can view a screenshot of it below.
The advent of an Ice Stone to evolve Alolan Vulpix into the Alolan Ice/Fairy Ninetales made other Pokemon fans wonder if other ways of past evolutions would be revamped for Pokemon Sun & Moon, namely Eevee into Glaceon.
Previously, the evolution into Glaceon was caused by leveling Eevee up near an Ice Rock.
But while this is true, Eevee evolves multiple ways, not just with stones. It could just be a new stone for a new type of Vulpix, who evolves from its original form into Ninetales with a Fire Stone.