Two new scans from CoroCoro magazine reveal more information on Pokémon Super Mystery Dungeon, including a secret new code for five Revival Seeds (which is NIT42CK2 you're very welcome) and more information on the second Zygarde Core:

pokemon

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The core comes from the anime series Pokémon XY & Z but this version features a blue hexagon on its inside rather than the red one. This news follows the announcement from Japanese variety show, Oha Suta, that revealed the existence of two Zygarde Cores.