A new trailer for Pokemon Let’s Go Pikachu! / Eevee! further details the recently announce Master Trainers feature.

Master Trainers essentially function as the endgame of the titles, challenging the player to find and defeat 151 different Master Trainers after beating the game.  They are hidden all over the in-game world and have each dedicated their lives to training and powering up just a single Pokemon spanning the entire original roster.  Players will be required to battle these trainers one on one with the strict rule of no item use, something which should hopefully add a hefty layer of hardcore challenge for series veterans.  It seems the player is required to use the same Pokemon as the trainer as well, so it won’t be a cakewalk where you can just exploit their weakness with a specific Pokemon.

Both games will be launching next month on November 16 exclusively for Nintendo Switch.