Water Absorb (ちょすい Water Storage) is an ability introduced in Generation III which activates in the event of your Pokémon getting hit by a Water-type move, resulting in your Pokémon regaining roughly a quarter of its HP. However, if your Pokémon already has full health when Water Absorb is used, the following message will appear "Poliwag's Water Absorb made Hydro Pump useless!"