Crystal- didnt realise that putting two pokemon in the daycare resulted in an egg being young and naive so i had a butterfy i was lazy training in there with something else (i cant remember now) but got an egg confused i walked around and hatched to find a sweet sweet golden caterpie. Didnt get any more until black around where you find kyruem and found a shiny piloswine
Zubat in Pearl. I evolved her into a Crobat, and she brought me some pretty lengthy win streaks in Battle Tower (Teamed with Scyther and Houndoom). She is currently level 84, and sits in a PC Box in Black Version, waiting to be called on again.
"There's a whole lot of Internet porn out there. It's not gonna download itself!" - Dr. House