How to make Reshiram from previous generation Tradeable

[giorgosk87]

Hello, 

So I know now that the legendaries that are part of the 435 pokemon are being sold online. My gf is in the army, and I am trying really hard to give her favorite mon, which is reshiram. I refuse to pay someone on ebay $5.  She does not play online at all, just plays the story, I have a reshiram from previous generations and from multiple pokemon files here in this site. I have 2 switches so I can trade online between them. I don't know how they do it, but I can't seem to make it tradeable. Met at while hill station does not seem to work, neither changing it to Pokemon Home, I am lost. I am pretty sure the trick is somewhere on the met tab that I can't figure it out.

 

Any help would be appreciated.

[ReignOfComputer]

Wait for PKHeX to update.