Secret Pack - Yugipedia - Yu-Gi-Oh! wiki

A Secret Pack is a type of card pack in the game Yu-Gi-Oh! Master Duel. These packs are based around a theme, which is typically 1 or more archetypes, and pull from a featured card pool of 40 or fewer cards to help build a Deck based around that theme, in addition to several cards from the Master Pack. Secret Packs serve as the main way to obtain cards for a specific Deck.

Altered Heraldry - Yugipedia - Yu-Gi-Oh! wiki

Yu-Gi-Oh! Master Duel secret pack list

Creation Pack 01 - Yugipedia - Yu-Gi-Oh! wiki

Stardust Ties - Yugipedia - Yu-Gi-Oh! wiki

Yu-Gi-Oh! The Dark Side of Dimensions Movie Pack Secret Edition - Yugipedia - Yu-Gi-Oh! wiki

Advanced Warriors - Yugipedia - Yu-Gi-Oh! wiki

Star-Studded Futures - Yugipedia - Yu-Gi-Oh! wiki

Scrap Iron Soldiers - Yugipedia - Yu-Gi-Oh! wiki

Legendary Collection: 25th Anniversary Edition, Yu-Gi-Oh! Wiki

Maze of Memories, Yu-Gi-Oh! Wiki

Mischievous Specters - Yugipedia - Yu-Gi-Oh! wiki

Maze of Millennia - Yugipedia - Yu-Gi-Oh! wiki

Inevitability of Chaos - Yugipedia - Yu-Gi-Oh! wiki

Passage of the Sun - Yugipedia - Yu-Gi-Oh! wiki

Set Card Galleries:Duelist Pack: Duelists of Pyroxene (OCG-JP) - Yugipedia - Yu-Gi-Oh! wiki