Lowers damaging Water-type moves' energy cost by 1%. Makes Hidden Power Water-type.
A bold blue stone tablet infused with the power of water. Pokémon holding this item use 1% less energy to use damaging Water-type attacks. That Pokémon's Hidden Power attack becomes Water-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.