Gaming Pokémon Crystal VC

[theoldbucwild]

i want to trade Pokémon from my Pokémon Gold/Silver VC to my crystal VC is there any possible way to do this with one 3DS, and Pokémon Bank/Transporter?

 

[Frezgle]

With official PokeBank, no. That's a one-way process upward to gen 7.

If you have CFW/homebrew, there's PkHex, which you can use to drag Pokemon from one game's save file into another. Not technically trading, but functionally the same thing. There was a gen 2 Pokebank clone also, but I can't find it now, so I doubt it's been updated for Crystal.

 

[Alex4U]

You should extract your GSC saves, then use PKHeX, and trade it, and delete it from where was. Let's call it's a "trade".

PokéBank, like Frezgle said, it's only for sending 1/2 gen Pokémon to 7 gen (Ultra Sun/Moon - Sun Moon)
You can't also recover the Pokémon from GB games when are on USUMO unless you do a backup to your save or clone your Pokémon.