While wild Pokémon battles have been mostly removed from the game, there are some battles with various Pokémon in the game. These battles are timed with a 5 minute timer giving you a restriction on how you battle it. Once you have defeated the Pokémon, it then shifts to the capture of the Pokémon. Do note, the Pokémon can flee.
These battles are also unique in that they follow a structure similar to the Totem Pokémon of Pokémon Sun & Moon. Some of the Pokémon has got stats that are already boosted by one level.
While this battle structure is typically seen with Legendary Pokémon