Darkrai event for May/June 2012
Pokemon Events — 15 May, 2012
A new event is underway through Nintendo WFC, offering the legendary Pokemon Darkrai. Darkrai was previously only available for a short time after the release of Pokemon Platinum.
This Darkrai has the ability Bad Dreams and the moves Dark Void, Ominous Wind, Faint Attack and Nightmare. It also holds the Enigma Berry, which restores 1/4 of the holder's HP when that Pokemon is hit by a super-effective move. It is available until June 10th.
To receive it, you do the usual and go to the Mystery Gift section in the main menu for Pokemon Black/White.