The first part of Pokémon Scarlet & Violet's DLC is finally here, and players worldwide are exploring The Teal Mask with everything it has to offer. Since Sword & Shield introduced the concept of DLC into the mainline Pokémon games, the promise of extra content for an already-established generation has been too intriguing for many to ignore. Sure enough, The Teal Mask has delivered with a new region in Kitakami, which has come with a compelling new story and a new Pokédex for players to fill out.
Source:https://www.cbr.com/pokemon-sv-teal-mask-dlc-kitakami-pokedex-guide/