At the Elite Four or battle NPCs with Pokemon the same level as your one.
Train it to level 25.
Trade, Train, Evolve, Catch, Breed all the pokemon!
doggy biscit
A good spot is probably where level 24 Pokemon live.
You have to go to fuchsia city and go to the safari zone and catch a chansey and evolve it you have to train it.
yes
you train them!!!
just train it to a higher lvl!
train your Pokemon that's it.
Train it to level 25.
Mewtwo? Plus you cannot get Mew in Leafgreen or Firered.
There is no best Pokemon to catch, as you train each individually.
the Pokemon league and maybe cerulean cave
Trade, Train, Evolve, Catch, Breed all the pokemon!
Train your pokemon to a higher level.
You must train a bulbasaur to get venasaur.
doggy biscit