Pokemon GO's evolution can be as simple as using the required amount of candy, but often rarer evolutions will require an evolution item.
These are consumables that can allow you to not only fill out your Pokedex but also unlock some impressively powerful creatures.
One such item, the King's Rock, can evolve Poliwhirl into Politoed or Slowbro into Slowking, and others too, so it's worth grabbing one.
Here's how to do just that.
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Pokemon GO: How To Get A King's Rock
There are a few ways to get a King's Rock, but none are guaranteed.
That means you'll want to complete as many of these tasks as possible - especially since you can only use it once.
Field Research
Arguably the easiest method of earning a King's Rock, you'll want to spin Pokestops wherever possible.
Each offers a 1% chance of an evolution item, including a King's Rock.
You'll up your chances by spinning Pokestops for seven days in a row, too!
Go Battle League Reward
Speaking of PvP, try competing in the Go Battle League for a chance to earn a King's Rock as a mystery item.
How To Find More Special Evolution Items
Want to evolve more unique Pokemon? Some Pokemon in the game can't be caught unless you use a special evolution item.
You'll need a King's Rock for Politoed and Slowking, a Sun Stone for Bellossom and Sunflora, the Dragon Scale for Kingdra, a Metal Coat for Scizor and Steelix, Plus Up-Grade for Porygon2.
Want to know more? Follow these guides for your step-by-step walkthrough:
- How To Get Sinnoh Stones
- How To Get Dragon Scale
- How To Get Sun Stone
- How To Get King's Rock
- How To Get Metal Coat
Need More Help? Head to our main Pokemon category for all the latest news and detailed step-by-step guides. Otherwise, make sure you're up to date on the current Egg pool, Ditto Disguises and Field Research Tasks, including the current Spinda you can catch in the wild. If you prefer PVE, you might also fancy your chances tackling the Pokemon Team GO Rocket Leaders - but maybe take a look at our guides to help you counter Arlo, Cliff, Sierra, Giovanni as well as Jessie & James. We've also recently learnt about some of the upcoming Pokemon GO January 2021 Events, including the next January 2021 Community Day and a special New Years Eve Event - So there's plenty to look forward too!
Read More: Best Pokémon Go Essentials 2020: Headphones, Batteries, Chargers, Backpacks, and more!