From Bulbanews, your community Pokémon newspaper.
Available to donors until the end of March
In remembrance of the 5-year anniversary of the 2011 Tōhoku earthquake and tsunami, players who donate to the Pokémon with You campaign from March 11 to 31, 2016 will receive a serial code for a Pikachu that knows Bestow.
This serial code will be displayed upon making a donation through the Yahoo Internet Fundraising page. The serial code can be redeemed in Pokémon X, Y, Omega Ruby, or Alpha Sapphire. The serial code can be redeemed from March 11 to April 21, 2016.
This Pikachu is level 10, holding a Sweet Heart, has a Classic Ribbon, has the Ability Static, and knows the moves Bestow, Hold Hands, Return and Play Nice. It has the original Trainer トウホク Tohoku with the Trainer ID number 20163.
Note that the codes may only work on Japanese region games.