Courtesy of the Pokemon Company International, Pokemon White and Black player will be able to download a legendary Pokemon via Nintendo Wi-Fi Connection starting tomorrow. Which monster they can get depends on which version of the game they have; Pokemon White players, who previously only had access to the Dragon/Electric type Zekrom, will receive the Dragon/Fire type Reshiram, and vice versa for Black owners.
All you have to do is log onto Nintendo's WFC from the game's main menu and choose to receive a mystery gift, and the dragons will be downloaded to your game. Then head to a Pokemon Center and talk to the dude in blue.
Both will be level 100. You can head to the official site for more info. This promotion will run from tomorrow through April 8, so you have plenty of time hop on and download these suckers. Did you download the last mystery gift—the awesome Mewtwo—while he was available? Let us know in the comments or on Twitter.