Yu-Gi-Oh! Judgment of the Light Deluxe Edition - Rules of Play says:

Each Fat pack comes with nine Judgement of the Light unlimited booster packs where Synchro Monsters make a big comeback. Included are 2 foil versions of common cards, 1 of 2 foil version preview cards from the next booster Shadow Spectres! 

Yu-Gi-Oh! Judgment of the Light Deluxe Edition Review:

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