The user hits the target with throwing stars two to five times in a row. This move always goes first.
Due to having a positive priority, Water Shuriken will always go before moves that are not of this priority type. Water Shuriken does damage, hitting the target two to five times in a turn. In a Double Battle, Water Shuriken can target any Pokémon around the user. In a Triple Battle, Water Shuriken can only target a Pokémon that's adjacent to the user.