Question: what to do after you beat the pokemon league in white 2?
Answer: Travel to the White forest, Pinwheel forest, Wellspring cave, Pokemon daycare, Striaton city, Dreamyard, Accumula town, Nuvema town, P2 labroratory, Plasma Frigate, and routes 3, 2, and 1. lunar wing, go to marvelous bridge, where you will meet Cresselia.