From today, October 9, to October 23, Pokémon fans can visit GameStop stores to pick up a code that will allow them to receive the Mythical Pokémon Marshadow in their Pokémon Sun or Pokémon Moon video game.
Marshadow is ready for action with Spectral Thief attack, which not only does damage but steals the stat boosts of its target. The power of the Marshadow that fans receive at GameStop doesn’t stop there—it also comes holding its special Z-Crystal, Marshadium Z, allowing it to strike hard with its signature Soul-Stealing 7-Star Strike Z-Move.
For more information please visit: http://www.pokemon.com.
Source: The Pokémon Company International PR
Pokémon Blog 
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