Pokemon Black 2 Cheats

The Soul Dew can be obtained after you capture (or defeat) the wild Latios. Latios will appear in the Dream Yard, which is the east of Striaton City. Once there you will be ambushed by Latios and then it flies off. You will need to chase it in certain areas to intercept it. Once you finally tire out Latios, go on the second floor of the Dream Yard and head for the eastern-most part of it. But before you do, save your game.

Note: Latios' only attack is Psychic, so I recommend bringing a Dark-Type Pokemon to make it useless in battle.