Dratini is a popular Dragon-type Pokmon that can be found in the Safari Zone in Pokmon SoulSilver. It is a relatively rare Pokmon, so players may need to spend some time searching before they find one.
Once players have found a Dratini, they can catch it using a Net Ball or an Ultra Ball. Net Balls are more effective against Pokmon that are found in the Safari Zone, so they are the best choice for catching Dratini. Ultra Balls are also effective, but they are more expensive than Net Balls.