Yes you can. However you need some special hardware. First you need a Flashcart. A flash cart is an special cartridge which allows the use of homebrew in the DS.
Can I trade Pokémon from an emulator?
Unfortunately, you cannot trade Pokémon with other emulator users; however, you can trade with yourself in order to port Pokémon between the two emulators.
Can I transfer Pokémon from an emulator to Pokemon home?
It is not currently possible to transfer Pokémon from Pokémon GO to Pokémon HOME, although the feature is coming. It should be noted that transferred Pokémon cannot be moved back to Pokémon GO once they have been moved to Pokémon HOME.
Can you evolve Kadabra without trading?
You can’t, for the exact reasons you stated. While it would be possible if one of the ingame traders was willing to trade one, according to the Bulbapedia ingame trade list there is no such trader.
Can you evolve Graveler without trading?
You normally cannot trade between emulators, making it difficult to get Graveler to evolve. There is a special version of the VBA emulator called VBALink that allows you to run up to four instances of it at once.
Is Pokemon bank free now?
Though Pokémon Bank is free until March 12th, 2020 with the launch of Pokémon Home, you still need to have a Premium subscription to Pokémon Home to complete the final move from Bank to Home. A little sneaky, but still an offer worth taking up if you want to bring everything up to date.
How can I trade Pokemon without WIFI?
YES. all 3DSs are capable of connecting without global internet via streetpass. For a long time I was unable to trade due to not having nintendo-capable wifi, but I was still able to trade and battle with my fiends via streetpass.
How do you get gengar without trading?
It doesn’t matter. You evolve him by trading. No matter what his level is, you can’t get Gengar without trading.
Can you evolve Onix without trading?
You don’t. You have to trade Onix holding a metal coat for it to evolve.
Can trade Pokemon evolve without trading?
In Pokémon Go, trading any of the species now marked with the Trade Evolution mechanic removes the full candy cost of evolving. You can still evolve creatures without trading, but it is heavily encouraged – both Karrablast and Shelmet require 200 Candy each to evolve otherwise.