Things You'll Need
Instructions
Open your Pokedex from the main menu. The Pokedex displays useful information about the game, including the current location of Raikou.
Travel to the highlighted route. Raikou may appear anywhere along this route at any time of day.
Battle Raikou with your Ground-type Pokemon. An Electric-type Pokemon, such as Raikou, deals very little damage to Ground-type monsters, and it receives additional damage from them.
Select Ground-type special abilities to inflict the Bind, Wrap or Paralyze effects on Raikou. The Electric-type Pokemon's health should quickly enter the bottom third "red zone," dramatically increasing its capture rate.
Select the Fast Ball Poke Ball item. A Fast Ball multiplies the chance of capturing any Pokemon with a speed of 100 or greater by four.
Repeat the process until Raikou fails to escape the Fast Ball.