How do you get the fire blow in light platinum?

To obtain the Fire Blow ability in "Light Platinum," you need to find and defeat specific fire-type Pokémon or complete certain quest challenges within the game. Once you meet the requirements, you can usually learn the move through a tutor or by leveling up a Pokémon that can learn it. Be sure to check the game's move compatibility and your Pokémon's current level to ensure they can learn the ability.