Dratini
Remember - Pokémon hatched from eggs and Shadow Pokémon won t count towards this Collection Challenge.
For completing the Pokémon League Collection Challenge, you ll receive 151 Stardust, 20 Great Balls and a Dratini encounter.
Tips for completing the Pokémon League Collection Challenge in Pokémon Go
Here are some tips which will help you complete the Pokémon League Collection Challenge in Pokémon Go:
If you want to complete the Pokémon League Collection Challenge during the Pokémon Go Tour: Kanto event, then make sure you play between either 1pm to 2pm or 6pm to 7pm (local time). During these periods, the Pokémon found around the Pokémon League will appear more frequently in the wild.