There are many kinds of evolution items in the Pokémon games. The games often lock off certain evolved forms behind making the previous entry hold a certain item. There are also a bunch of rare Pokémon that require these items. One of the more bizarre evolutions introduced in later games is Porygon-2, and yes it uses an Evolution Item. When you want to evolve Porygon into Porygon-2, you need the Up-Grade in Pokémon Brilliant Diamond and Shining Pearl.
Here’s what you need to do to find Up-Grade in Pokémon Brilliant Diamond and Shining Pearl.
Where to find Up-Grade in Pokémon Brilliant Diamond and Shining Pearl
You will need to do a lot of work for the full Sinnoh PokéDex. Which you actually need to do for this item anyway. You don’t need to capture them all, but you need to at least encounter every one of the Regional Dex Pokémon. You need to head to Pal Park after completing the regional Dex, Professor Oak will then give you the National Dex there.
After you have beaten the Elite Four, you need to do some backtracking. Then, head to Eterna City to get the Up-Grade from Oak. You need to head to Eterna City, then head south from the Pokémon Center and enter the building with the yellow roof before the bridge.
If you don’t have the Porygon yet, are you haven’t gotten to this point in the game, don’t worry. You can always store the candidate for evolution until later. Pokémon Home is also useful for the long-term storage of monsters you’re waiting to evolve.
There are also a bunch of stat upgrade items to find. If you’re planning on getting into the competitions of who has the prettiest Pokémon, you will need to learn about Poffins too.
There’s a lot to learn about this game. You might want to learn a bit about Affection bonuses. If you want more encounters, try finding some Honey Trees. There have also been some new additions to character customization that you need to know about.
You should also stop over and grab the Explorer’s Kit as well. Now that you have unlocked more of the game go out and have fun. And if you want to trade and battle, you can do that too. You don’t need the NSO Expansion Pack to access online in Pokémon Brilliant Diamond and Shining Pearl.