Pokemon GO has enjoyed a renewed surge in popularity thanks to the addition of over 80 new creatures to catch in the game. Besides a slew of second generation Pokemon, Niantic has also updated Pokemon GO to include new items called evolution stones that can be used to evolve certain Pokemon.

One evolution stone has the sole purpose of evolving two specific water-type Pokemon, Slowpoke and Poliwhirl, into their evolved forms, Slowking and Politoed, respectively. Here is how to find the King’s Rock evolution stone, and the other requirements players must meet to obtain Slowking and Politoed.

How to Get King’s Rock

pokemon go trainer pokestop blue active

It should come as little surprise to Pokemon trainers on the prowl for evolution stones, but the King’s Rock evolution stone is found the same way as the rest of them. Unless Niantic updates the game to allow players to obtain a King’s Rock using other methods, the only way to get one at the time of this writing is to get lucky at a PokeStop.

To increase one’s odds of finding a King’s Rock, it’s a good idea to hang out near areas with a high concentration of PokeStops. This may mean traveling to a bigger city, but taking the time to do this will make the search for a King’s Rock go much faster. Not only that, but players can advance their progress in other areas of the game while farming for King’s Rock at PokeStops.

While walking between PokeStops, players can earn XP by catching new Pokemon and hatching eggs. Furthermore, they may acquire one of the other evolution stones in their attempt to get a King’s Rock, like the Up-Grade or the Metal Coat, which could go a long way in filling out the Pokedex. So even though walking around between different PokeStops may seem boring, it’s actually a great way to advance in Pokemon GO.

Who Can Evolve with the King’s Rock

Pokemon GO Guide: How to Evolve Slowpoke into SlowKing, Poliwhirl into Politoed using King’s Rock - Politoed

Unlike the Up-Grade evolution stone, there are two different Pokemon that can evolve with King’s Rock, and both of them are water-type Pokemon – Slowpoke and Poliwhirl. Out of the two Pokemon that can evolve with King’s Rock, the easiest one is Slowpoke, so players may want to focus on evolving it first.

After acquiring the King’s Rock, the next step to evolving Slowpoke into Slowking is amassing 50 Slowpoke candies. Players can earn Slowpoke candies in a variety of ways. Typically, they will get the most candy from hatching a Slowpoke from an egg, but that comes down to chance. They will also earn three Slowpoke candies every time a Slowpoke or Slowbro is caught, and an additional one for transferring duplicate Slowpokes and Slowbros to the professor. Yet another way to earn extra Slowpoke candy is by assigning it as a buddy Pokemon and walking around.

For those looking to catch Slowpoke/Slowbro, and Poliwag/Poliwhirl for that matter, the best place to look is near a body of water. As can be expected, water-type Pokemon tend to spawn near public lakes and ponds, so if the weather permits, go for a stroll and start collecting as many of these Pokemon as possible.

When it comes to evolving Poliwhirl into Politoed, players will want to spend a lot of time walking around lakes and catching Poliwags and Poliwhirls. For Poliwhirl to evolve into Politoed, players need to amass 100 Poliwag candies in addition to the King’s Rock, which is quite the tall order. It doesn’t help matters that players will need another 100 candies to evolve Poliwhirl into its other evolved form, Poliwrath. For those farming for Poliwag candies, the same methods used to earn Slowpoke candies still apply.


With enough persistence, players will earn enough candy and King’s Rock evolution stones to evolve Slowpoke into Slowking and Poliwhirl into Politoed. After adding these two rare water-type Pokemon to their roster, players will be well on their way to catching all the Pokemon currently available in Pokemon GO.

Pokemon GO is available now for iOS and Android mobile devices.