- Lowers damaging Steel-type moves' energy cost by 1%. Makes Hidden Power Steel-type.
A slate gray stone tablet infused with the power of steel. Pokémon holding this item use 1% less energy to use damaging Steel-type attacks. That Pokémon's Hidden Power attack becomes Steel-type for as long as the plate is in its possession. If the plate should be removed, Hidden Power's type is randomized for the remainder of the battle.