This is the Darkrai Mythical Collection from the Pokémon TCG:
 Darkrai is the best-selling foil promo card!
 2 Pokémon TCG: Generations Booster Packs
 A special pin featuring Darkrai!
 And it's also available for the Pokémon TCG Online!
 The Pokémon TCG: May Pokémon Mythical Collection introduces Darkrai! This collection includes a special Darkrai promo card and a pin of the Mythical Pokémon. It also contains two Pokémon TCG: Generations booster packs and a Pokémon TCG Online code card.
 Celebrate 20 years of Pokémon with the Pokémon TCG: Generations expansion, covering every stage of a Trainer’s journey, from choosing your first partner Pokémon to the most elite Trainer battles. Featuring Pikachu, Snorlax, Ninetales-EX, and Jolteon-EX, plus Mega Charizard-EX, Mega Blastoise-EX, and Mega Venusaur-EX, the Generations expansion is a force to be reckoned with! Let’s train!