If you want evolve Sinistea to Polteageist, you need to find Cracked Pot or Chipped Pot in Pokemon Scarlet and Violet. The problem is that these special evolution items are exceptionally hard to find and depend almost entirely on luck.
This guide explains how to get Cracked Pot and Chipped Pot so you can evolve Sinistea into Polteageist.
How to get Cracked Pot and Splintered Pot in Scarlet and Violet
From what we have been able to tell, it can only get Cracked Pot and Chipped Pot at the auction house in Port Marinada. Some players initially reported that you can’t visit the port until you learn how to swim, but we found out that’s actually not true. You can jump into the Asado desert from its southern end and exit at the northern end, just above Port Marinada.
Grab a Girafarig so you can evolve it into Farigiraf for your Paldea Pokédex while you’re here.
Regardless of how you get there, you’ll need to clear the Gym battle in Cascarrafa before you can start bidding on the auction house. Before that, the sellers in the central hall will reject him and say that he does not have enough experience.
The auction house’s actions change every real world day, not every in-game day, which changes after about an hour of real time. Whether any of the vendors have a cracked pot or a chipped pot is completely random, so you may need to check back a few times before you get what you need.
These auctions often include evolution stones as well, should you need to stock up on those.
You may also end up spending a small Poké-fortune. Other NPCs are bidding on the same items, which can sometimes drive the price up excruciatingly. Make sure one of your Pokémon has the Amulet Coin during trainer battles so you can earn extra money.
If you want to force the auction house to change their stock, you can change your Switch’s internal clock to the next day and repeat the process as many times as you need. Just keep in mind that it would affect the likes of Animal Crossing: New Horizons if you have that too.
How to evolve Sinistea into Polteageist
Whether you need a cracked or chipped pot depends on the type of Sinistea you have. Most of these types of ghosts will be fake, but a small number will be genuine. There is no difference between the two except for a small blue seal of authenticity at the bottom of an Authentic Sinistea. The fake ones have no stamp.
One way to tell what type of Sinistea you have is to check if your Pot item works on it. Chipped Pot only evolves into Authentic Sinistea. Cracked Pot evolves the fake ones.
However, if you don’t want to waste your money on a Pot item on the auction house, you can check what type of SInistea you have with the auto battle feature. Send your Sinistea by pressing “R” and move the camera as close as you can. As Sinistea floats in the air, you can see under her bottom (goodness) and check if they have a seal.
If you have a True Sinistea or a True Polteageist and you breed it with another Polteageis or a Ditto, there is no guarantee that the egg will produce another True. However, this distinction is purely aesthetic and evolutionary. There are no stat or move differences between either type.
Check out our Pokemon Scarlet and Violet walkthrough for more tips and tricks!