To promote the 19th Pocket Monsters movie Volcanion and the Ingenious Magearna, between Friday June 17th, 2016 and Friday July 8th, 2016, the Prepare for a Fierce Fight! Black Mega Sirknight Campaign (熱戦にそなえろ！ 黒いメガサーナイトキャンペーン) will take place at participating store locations across Japan.

As part of the campaign, an alternate-colored Sirknight will be distributed via a serial code distribution at: Apita-Piago, Aeon, Aeon Super Center retail stores, Ito-Yokado, EDION, Joshin Denki, Toys R Us, Bic Camera, Fuji, Heiwado, Yamada Denki, Yodobashi Camera, Pokémon Centers and Pokémon Stores. The code can be redeemed from Friday June 17th, 2016 until Wednesday August 31st, 2016.

Black Mega Sirknight Details

Chymia is the princess of Azoth Kingdom and she has a black Mega Sirknight as her partner.

Pokémon	Info
	Level: 50
	Poké ball: Cherish Ball
	Ability: Synchronize
	Held Item: Gardevoirite
	Attack 1: Dazzling Gleam
	Attack 2: Moonblast
	Attack 3: Stored Power
	Attack 4: Calm Mind

How to receive the serial code

In order to receive this Sirknight, players of X, Y, Omega Ruby and Alpha Sapphire will need to get the serial code from a participating store. Each store is distributing the serial code differently. Most stores will be distributing the code on a card that can be obtained from a store clerk. Only one code per game will be distributed.


Those wishing to obtain the code from 7-Eleven must bring their Nintendo 3DS to a participating DS via 7-Spot and obtain the code through the app by opening the campaign page and then touching the "Get! The Serial code" button. Write down the serial code on a piece of paper before proceeding to a different screen.


Source: http://www.pokemon.co.jp/ex/black_sirnight/