Talk:Gameplay:Friends/@comment-80.104.4.74-20170707122338/@comment-30827145-20170708082652

I think keys used to be available from friend games but it has been cancelled (I've never tried once so I can't confirm).

Concerning the best way to get experience, I would say it is better to farm a 30 STA FN with books you want because:

- It gives more experience to level up your player level

- You have chances of getting skill books and maybe units

- You usually have enough pigs/baby turtles and fodders to max the pigs and evolve them (baby ponies are required, though)

If you can handle 30 STA FN and they drop pigs of the color you want, that's the best way to level up your units in my opinion.