Reshiram

Reshiram is a bleached pokemon Generation V Legendary Pokémon and the mascot for Black. It was first revealed on the official Pokémon website on May 28, 2010 along with Zekrom. It will most likely not have a gender. It is one of the two main Legendary Pokémon, and will appear on the boxart of Pokemon Black. It is officially confirmed that it will have the Dragon type, and its second type has recently confirmed to be Fire. Reshiram also comes from the japanese word "shiramu" which means to grow light. This may be a clue that means the two Legendary Pokemon, Reshiram and Zekrom, may have something to do with the sky. It is also rumoured like in Pokemon Ruby and Sapphire, where there is a catastrophic event going on at one point, may be once again with Reshiram making the sky very bright.

Trivia

 * Reshiram's head and face look somewhat like Luxray and Ninetales mixed together.( Luxray's eyes, and the shape of Ninetales' head.)