Question: are trade evolutions in pokemon let's go?
Answer: Pokémon Let's Go Trade Evolution: How To Evolve Haunter, Kadabra, Machoke And Graveler. ... Once you have traded Haunter, Kadabra, Machoke and Graveler across, they will evolve into Gengar, Alakazam, Machamp and Golem once the other player has received them.