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.

Celestial Dragon and Bear - Yugipedia - Yu-Gi-Oh! wiki

25th Anniversary Tin: Dueling Heroes Mega Pack - Yugipedia - Yu-Gi-Oh! wiki

Roaring Thunder - Yugipedia - Yu-Gi-Oh! wiki

Primordial Rising - Yugipedia - Yu-Gi-Oh! wiki

Premium Pack 2022 - Yugipedia - Yu-Gi-Oh! wiki

Dark Bat - Yugipedia - Yu-Gi-Oh! wiki in 2023

Kaiju, Yu-Gi-Oh! Wiki

Pharaoh Atem, Yu-Gi-Oh! Wiki

Golden Rule - Yugipedia - Yu-Gi-Oh! wiki

Denizens of Sacred Tree Grove - Yugipedia - Yu-Gi-Oh! wiki

25th Anniversary Rarity Collection - Yugipedia - Yu-Gi-Oh! wiki

Scientific Analysis - Yugipedia - Yu-Gi-Oh! wiki

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