Here i'm presenting you my strategy to level 21
Preparation:
- Get 1 Friend of your team, and find 2 other People from an other team.
- Catch as many Pidgey/Rattata as u can.
Best way is to find a location where 3 Stops are very close together. Then activate a lure on all three and catch everything you can- Pop a lucky egg
- Evolve your Pidgeys and Rattatas to Pidgeotto(not Pidgeot/Raticateyou will get a lot of xp (1500)
- Go to an arena.
- If the arena belongs to your team let the other 2 people take over the arena. If it belongs to an other team. Then take over the arena.
- If the arena is empty. The other team place two 10cp pokemon there(e.g Pidgey/Rattata)
- Defeat them very easy with a stronger pokemon. (300xp per Kill)
- Place a weak pokemon there for the other team.
- Repeat
Sorry for bad english
greeting Kite