Forgotten Underworld

Secret PackMaster Duel
ReleaseApr 10, 2025

40 cards in Master Duel

URmaster duel ultra rare6
Mementoal Tecuhtlica - Combined Creation
UR
Mementomictlan Tecuhtlica - Creation King
UR
Mementotlan Angwitch
UR
Mementotlan Shleepy
UR
Thunder Dragon Colossus
UR
Thunder Dragon Titan
UR
SRmaster duel super rare12
Mementotlan Bone Party
SR
Mementotlan Dark Blade
SR
Mementotlan Fusion
SR
Mementotlan Tatsunootoshigo
SR
Mementotlan Twin Dragon
SR
Paralyzing Mushroom
SR
Supply Squad
SR
Thunder Dragon Fusion
SR
Thunder Dragondark
SR
Thunder Dragonhawk
SR
Thunder Dragonmatrix
SR
Thunder Dragonroar
SR
Rmaster duel rare13
Cross-Sheep
R
Magnum the Reliever
R
Mementomictlan
R
Mementotlan Bone Back
R
Mementotlan Goblin
R
Mementotlan Mace
R
Mementotlan-Horned Dragon
R
Thunder Dragon
R
Thunder Dragon Discharge
R
Thunder Dragon Thunderstormech
R
Thunder Dragonduo
R
Thunder Dragonlord
R
Thunder Dragons' Hundred Thunders
R
Nmaster duel normal9
Chain Ignition
N
Fusion Recovery
N
High Rate Draw
N
Mementotlan Akihiron
N
Mementotlan Cranium Burst
N
Mementotlan Fracture Dance
N
Mementotlan Ghattic
N
Polymerization
N
Twin-Headed Thunder Dragon
N