I dont even know what Lightball is, I haven't played a pokemon game since Leaf Green
That's an item that Electric Pokemon usually carrying, but mostly Pikachu hold it and you only have at least 5% chance to get it with general Pokemon, OR 20% if you have a Pokemon with a move that easily attaching the wild pokemon that held an item (Sorry that I couldn't remember that move name... It ended with "Eyes").
What's Light Ball?
http://pokemon.wikia.com/wiki/Light_Ball --- American Sign Language is my primary language - deal with it! "ESL" is standing for "English Sign Language", period.
It is a hold that practically doubles Pikachu's attack and special attack stat. You have a chance of finding it on a random Pikachu. My brother found it on one after capturing 6 of them in the forest.
As well as if Pikachu was breeding while hold this item, its Pichu will gain Volt Tackle move. --- American Sign Language is my primary language - deal with it! "ESL" is standing for "English Sign Language", period.