HGSS - How to use PokeFinder to create legal PID for my existing pokemon (to change nature)

[HeartGoldin2026]

Hi everyone,

Can someone guide me on how to use the PokeFinder to create a legal PID?

1. I want to change the nature of my pre-existing pokemons, but since they are bound to PID I can't just change them in PokeHex.

2. Tied to that, I also want to change my Umbreon's PID so that it is born from an egg, and has the Wish egg move.

Many thanks,

[Kaphotics]

If you are just going to change them in PKHeX, then use the encounter database within PKHeX to generate new ones. Then copy the PID/IV over to your existing pkm manually.

[HeartGoldin2026]

Hey thank you. So it is possible to change the nature of my preexisting pokemon via PokeHex in HeartGold?