Pokémon Go trainer battles FAQ: local and online, leagues and more - Polygon
Pokemon Sword and Shield - How to Battle Friends, Play Multiplayer Online | Attack of the Fanboy
Nintendo of America on Twitter: "In #PokemonSwordShield you can connect to the internet and battle against Trainers from all over the world in the Battle Stadium. Features like Rental Teams and Online
Pokémon Go Battles: How to battle trainers and PvP rewards explained | Eurogamer.net
How Player Vs. Player Trainer Battles Work in Pokémon GO | Nintendo Life
Amazon.com: Pokemon TCG: Pokemon GO Elite Trainer Box : Toys & Games