In the Pokémon games Sword and Shield, Legends: Arceus, and Scarlet and Violet, Steel Roller is a Steel-type move that serves a unique function tied directly to the terrain on the battlefield. To effectively use the Steel Roller move, there must be an active terrain effect present on the battlefield, such as Electric Terrain, Misty Terrain, Grassy Terrain, or Psychic Terrain. If such an effect is in place, using Steel Roller will not only execute a powerful attack against the opponent but also remove the terrain effect from the battlefield. This makes it a strategic choice for battling opponents who benefit significantly from terrain effects. However, if no terrain effect is active, the move will fail, making it imperative for the player to either anticipate the opponent setting up terrain or use it in battles where terrain effects are commonly employed. It’s a strategic move that requires a bit of forethought and understanding of both your and your opponent's strategy, making it a potent addition to a Pokémon’s move set in the right circumstances.