Tornadus (Japanese: トルネロスTorunerosu) is a Flying-type Legendary Pokémon first introduced in the Generation V games Pokemon Black and White. It is also a Pokémon that is only a male. You have to go to route 7 and go into a house and when you come out there is Tornadus. It is somehow related to Thundurus and Landorus. It is a version exclusive for Pokémon Black. If Tornadus is in the same Route as you, it will start pouring rain. The message boards will sometimes say: a mysterious storm has appeared in Route (any route really) and this means that Tornadus is in that Route.
Like Thundurus, it too is a roaming Pokémon making it hard to catch.
Tornadus' name is a combination of the English words "tornado" and possibly the end of "Enceladus," who was a giant in Roman and Greek mythology.
In the Kami trio, Tornadus is the only one who is not a dual type.
Tornadus and the rest of the Kami trio will have 3DS and AR searcher app exclusive forms that can be sent to copies of Pokémon Black 2 and White 2, called "Therian Formes", while their current forms are called "Incarnation Formes"
Its Therian Forme is the mystery silhouette in the AR searcher app picture.
While Tornadus has a gender, it cannot breed because it is still a legendary.