This guide to resolve any issues users get when they try to change nature or PID of a Pokemon from Gen 3 or Gen 4. DO NOT USE ANY POKEMON WITH MODIFIED PID ONLINE!
The reason why people get various PID-Mismatch or Invalid Encounter type of messages, is because simply, they did not modify the Pokemon correctly.
In Generations 3 and 4, due to an in-depth understanding of how the Pseudo-Random Number Generator works (as well as game mechanics), the Personality Value (PID) is tied to various other values related to the Pokemon generation procedure in-game, such as Individual Values (IVs), Gender, Ability slot, Nature, and Encounter Slot. (Encounter slot refers to the programmed data in a table, that hosts a list of level and species that can be encountered in a map)
For starters, I'll be using this shiny Deoxys, to attempt to change its nature to Sassy (while keeping it shiny).
- Download RNG Reporter
Change the stat you want (for example, nature) Pokemon in PKHeX, and set it into the box. Example, it looks like this now:
(other examples include Encounter Type Mismatch)
Identify which Method is appropriate. What is important is:
(More details at the bottom of the page under Note 1)
Find PID using RNG Reporter
- Open RNG Reporter
- Select the chosen Method
- Indicate ID and SID and check Shiny Only, if the final result wanted is shiny.
Indicate Encounter Type (if necessary).
- if you're going for a Pokémon that has an overworld sprite that isn't the Red Gyarados (Sudowoodo, Snorlax, Heatran, Giratina, Azelf, etc.) select Stationary Pokémon . The rest are self-explanatory. Most of the time you'll be picking Wild Pokemon as your method unless you're only going to capture legendaries, in which case you'd pick Stationary Pokémon.
- Indicate the stat you want (IVs or Nature, or Gender for example)
- Select starting frame at 1000
Click Generate. If you don't get any results, feel free to increase the Max Results. Example of results:
* If you are doing this for a Wild Pokemon, ensure that the result you've chosen, has the Encounter Slot that matches your species encounter slot on the route. To check the relevant encounter slots, refer to this website.
If RNG Reporter Main page doesn't give you any hits, consider using Time Finder. See Note 2.
In PKHeX, change the PID, Nature, Gender, Ability, and IVs to match what was generated.
Note 1: "Method" details
Voltorb1, Electrode1, Mew2, Chikorita, Cyndaquil, Totodile, Sudowoodo, Lugia, Ho-Oh, Treecko, Torchic, Mudkip, Lileep, Anorith, Castform, Kecleon3, Wynaut4, Beldum, Regirock, Regice, Registeel, Latias, Latios, Kyogre, Groudon, Rayquaza, and Deoxys
- 1Only Voltorb and Electrode disguised as Poké Balls are generated by method 1; the rest are generated as wild Pokémon.
- 2Mew is only obtainable in Japanese versions of Pokémon Emerald; other regions never received the Old Sea Map.
- 3Only the six Kecleon revealed by the Devon Scope are generated by method 1; the rest are generated as wild Pokémon.
- 4Only the Wynaut Egg from Lavaridge Town is generated by method 1; Wynaut found on Mirage Island are generated as wild Pokémon.
Bulbasaur, Charmander, Squirtle, Clefairy¹, Abra¹, Hypno², Voltorb³, Electrode³, Hitmonlee, Hitmonchan, Scyther¹, Pinsir¹, Magikarp⁴, Lapras, Eevee, Porygon, Omanyte, Kabuto, Aerodactyl, Snorlax, Articuno, Zapdos, Moltres, Dratini¹, Mewtwo, Togepi, Lugia, Ho-Oh, and Deoxys
¹Only Clefairy, Abra, Scyther, Pinsir, and Dratini bought at the Game Corner are consistently generated by method 1. Scyther is exclusive to FireRed, whereas Pinsir can only be found in LeafGreen.
²Only the Hypno encountered by Lostelle in the Berry Forest is consistently generated by method 1.
³Only Voltorb and Electrode disguised as Poké Balls are consistently generated by method 1.
⁴Only Magikarp bought from the salesman in the Pokémon Center on Route 3 are consistently generated by method 1.
Regarding method, for all 4th generation games Method 1 is used only if you're going for the following:
- Pokemon Ranger Manaphy Egg
- Wondercards have their own method, which is just a modified Method 1
- Starter Pokemon
- Cynthia's Togepi Egg
- Fossil Pokemon from Mining Museum
- Riolu Egg from Riley
- Eevee from Bebe
- Porygon from Veilstone
- Cresselia, Mesprit, Articuno, Zapdos, and Moltres
- Happiny Egg
- Kanto/Hoenn/Johto Starters
- Togepi Egg
- Bill's Eevee
- Raikou, Entei, and Latios/Latias roamer; the Latios/Latias from the Enigma Stone event is NOT Method 1
- Tyrogue from Mt. Mortar
- ExtremeSpeed Dratini received from Dragon's Den
- Goldenrod/Celadon Game Corner Prize Pokemon
- Fossil Pokemon Pewter City Museum
- Sinjoh Ruins Dragon event where you need Arceus
Note: Any Pokemon received from a trade or as a gift that has a fixed nickname and OT (Kenya the Spearow, Gaspar the Haunter, etc.) will have set IVs and nature so RNG manipulation techniques will never work on them.
If the Pokemon you seek does not fall into the Method 1 category,
select Method J if using Diamond/Pearl/Platinum and Method K if using HeartGold/SoulSilver.
Please refer to the "Special Cases" section and check if your Pokemon falls under this category.
In the 3rd generation, wild encounters are determined by Method H, with the PID/IV relation being primarily Method 2. As such, the primary method to search with is Method H-2. Methods H-4 and H-1 are fairly uncommon, but they are possible.
This applies to any Pokemon that wants a certain nature and all IVs 31
(of course Method 1 or other methods still depend on what encounter you're doing)
Go to Gen 3 Time Finder
Indicate Nature and IVs, and hit Generate. (notice I'm not making it shiny yet)
Now, with the PID found, you need to find a TID and SID that will allow that PID to be shiny.
So I key in a intend TID and PID, to find wanted SID:
Not every Nature can have all 31IVs, from wild encounters.
Also frankly, with Hyper Training in Gen 7, 31IVs are kinda pointless.