Like every Pokémon game including the most recent Pokémon Scarlet & Violet, the main objective is to catch every Pokémon in existence. Of course, that sentiment might be different for some trainers, but catching them all has been the franchise’s mantra since the beginning. If you want to catch every Pokémon during your journey through Paldea, then you’re going to have to find yourself both a Sinistea and a Polteageist. You can find Sinistea pretty easily inSouth Province (Area Six)byAlfornada. Unfortunately, getting a Polteageist isn’t as easy and requires a little bit of work.

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How to get Polteageist in Pokémon Scarlet & Violet

Just like any other antique pot of tea, you can only check a Sinistea’s authenticity by checking for the smallblue stamp at the bottom of their bodies. Some Sinistea’s don’t have this stamp, which marks them as fakes that require a different means to evolve into a Polteageist. But, this stamp is only half the battle. The next step to evolving your Sinistea is to apply aChipped Potevolutionary stone to the ones with the blue seal or theCracked Potevolutionary stone to the ones without them.

These evolutionary stones are incredibly difficult to find, as they only appear at the Auction House inPorto Marinadalocated at the west end of the map. Because of this, the time of day in which they can appear, as well as their price, will be random. You will just need to go over there and check it out for yourself once you make it over to that side. Once you apply either stone, a cutscene will unfold in which Sinistea evolves into Polteageist, adding it to your party and your Pokédex. If you want yourPolteageist to have a particular nature, verify that you take note of Sinistea’s nature before evolving since this cannot be changed out!

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For more Pokémon Scarlet & Violet, check out bothAre Paradox Pokémon shiny locked in Pokémon Scarlet & Violet?andHow to evolve Girafarig into Farigiraf in Pokémon Scarlet & Violetonly on Pro Game Guides.