gottacatchemall:

Receive Mewtwo in Pokemon Black/White Event!  [Wi-Fi Event]

The legend of the Genetic Pokémon Mewtwo has grown ever since it debuted in the Pokémon Red Version and Pokémon Blue Version games. The Psychic-type Pokémon has always been considered one of the most powerful Pokémon available, and also very tough to catch.

You’ll have a new opportunity to get the Legendary Mewtwo once again! Starting on February 12th, you can receive Mewtwo for your Pokémon Black Version or Pokémon White Version game. Take part in a limited-time distribution event to get this amazing Pokémon. This Mewtwo is incredibly strong and fast, and it even has an exclusive move that Mewtwo cannot normally learn!

Details about Mewtwo (from Serebii):
Level 70
Ability: Pressure
Hold Item: King’s Rock
Attacks: Psystrike, Shadow Ball, Aura Sphere, & Electro Ball

Start Date: Feb. 11th, 2012
End Date: March 6th, 2012

Obtained via Wi-Fi.  Full details (with screenshots) on how to obtain Mewtwo via a Wi-Fi event here.

Other Events:

Also check out the Serebii event page for information on getting an Arceus (Feb. 1st to May 1st) via a Global Link Event.  In America, Lucario is also available (Jan. 12th to April 30th) in another Global Link Event.  For anyone in the Netherlands, there will be an in-life event for Reshiram and Zekrom on Feb. 18th. 

Good luck receiving any of these awesome Pokemon! :]

[Mew & Mewtwo; News]