This flaming bunny loves kicking around rocks and eventually, when it reaches its final Evolution ... In the Stellar Crown ...
Though it's important to note that this is a branching research quest so, at quest step one, you'll be asked to pick between three different paths - Adventure with Grookey, Scorbunny or Sobble.
You'll choose from the three starter Pokémon from Sword and Shield - Grookey, Sobble or Scorbunny ... its Rillaboom evolution is an excellent choice to use in the Pokémon Go Battle League ...