[pansy02]

I'm not sure what's the most efficient way to progress.
So far I've been focusing almost all my resources on one strong team, but I've noticed some players seem to level lots of different Pokémon instead. Is there a long-term advantage to building a larger collection early, or is it better to max out a small team first and expand later?
I'd appreciate any tips from experienced players or things you wish you knew when you first started. Thanks!