Dumb question: Is trading the only way to move Pokemon across save files?

General Discussion Questions
1

I have some Pokémon for my upcoming playthrough on one save file. I will, once they’re EV and IV trained, need a way to put them on another save file.

Is trading with another human the only option?

2

yes.

3

Aye.

Thanks.

4

Any other way of transfering Pokemon through savefiles in considered as cheating.