From Bulbapedia, the community-driven Pokémon encyclopedia.
Shadow Storm (Japanese: ダークストーム Dark Storm) is one of several Shadow moves available only in Pokémon XD: Gale of Darkness. Like other Shadow moves, it is forgotten and replaced with another move once the Pokémon is purified.
Shadow Storm is a Shadow version of Surf, and hits both enemies Pokémon in a Double Battle. It could also be considered as an upgraded Shadow Rave.
As Shadow Pokémon cannot be traded, and since Pokémon Contests do not exist in Pokémon XD: Gale of Darkness, Shadow Storm cannot be used in Contests.
|| A shadowy aura is used to whip up a vicious tornado.
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