Increase the size of your Pokémon.

One of the new features in Pokémon Sword and Shield is the “dynamax” ability – allowing trainers to transform their pocket monsters into giants on the battlefield for a short period of time. There are also raids in the game where you can fight alongside other players to defeat these overly large Pokémon.

Read the full article on nintendolife.com

Original source: http://www.nintendolife.com/news/2019/06/nintendo_creatures_and_game_freak_apply_for_dynamax_band_trademark_in_japan