Originally Posted by Silverwynde
Azurill in my case. I could barely run into any at the Ranch and the very few that I did were nigh impossible to catch. Ugh.
Oddly enough, I ran into a Riolu straightaway on my B2 game and caught it with no problems. It even had a pretty decent Nature: Naughty. Guess I got kinda lucky in that regard.
Me too, I even use Lucario as my main Pokémon.