Alliance for Justice

The "Ally of Justice" alliance was formed to fend off invasive creatures from outer space.

Use the power of unity that transcends tribal boundaries to exterminate the oncoming "Worms"!

Alliance for Justice is a Solo Mode Gate in Yu-Gi-Oh! Master Duel and focuses on the Ally of Justice archetype.

Like most Gates in Solo Mode, each Duel can be played with either the player's own Deck or a provided Loaner Deck fitting the theme of the Gate, with separate rewards for each. Completing this gate for the first time unlocks the "Justice Before Attribute" Secret Pack for 24 hours.

Chapter 1: Scenario

Main article: Master Duel card storylines § Alliance for Justice

• Reward: 150 DARK Orbs

Chapter 2: Scenario

• Reward: 150 LIGHT Orbs

Chapter 3: Practice

Learn the ins and outs of the "Ally of Justice" Deck.

This chapter serves as a tutorial for using the Ally of Justice archetype.

• Reward: 150 DARK Orbs

Chapter 4: Duel 1

• Reward (Loaner): "Ally of Justice Clausolas
• Reward (My Deck): 150 DARK Orbs

Loaner Deck

While "Ally of Justice" monsters have powerful effects against LIGHT monsters and face-down Defense Position monsters, there are also monsters that have effects that can be your Achilles' heel. Try to determine which of your monsters can effectively counter your opponent's in the early stages of the Duel. Once you get the hang of the Deck, we recommend using cards that support Machines and aim to Synchro Summon your trump card Synchro Monsters.

The Power of the Alliance

Main Deck Monster Cards Jet Synchron x2 Ally of Justice Unlimiter x3 Ally of Justice Unknown Crusher x2 Ally of Justice Cyclone Creator x3 Ally of Justice Searcher x2 Ally of Justice Cycle Reader x3 Ally of Justice Core Destroyer Ally of Justice Thousand Arms Ally of Justice Nullfier Ally of Justice Reverse Break x2 Ally of Justice Quarantine x2 Ally of Justice Thunder Armor Ally of Justice Cosmic Gateway x2 Spell Cards Raigeki Harpie's Feather Duster Double Summon x2 Iron Call x3 Iron Draw x2 Lightning Storm Limiter Removal Trap Cards Shapesister x2 Extra Deck Synchro Monsters Ally of Justice Catastor x3 Ally of Justice Light Gazer x3 Ally of Justice Field Marshal x3 Ally of Justice Decisive Armor x3 Xyz Monsters Gear Gigant X x3

Opponent's Deck

A Deck that utilizes Reptile "Worm" monsters of Level 4 and below. Try using the powerful strategy of sending "Worm Yagan" to the Graveyard with the effect of "Worm Xex", then Special Summoning "Worm Yagan" from the Graveyard in face-down Defense Position with its own effect. To take advantage of effects that can be activated when a card is flipped, use Spell and Trap cards to supplement ATK and DEF while battling.

Star-Devouring Invader

Main Deck Monster Cards Worm Hope x2 Worm Linx x3 Worm Opera x3 Worm Barses x3 Worm Jetelikpse Worm Cartaros x3 Worm Solid x3 Worm Tentacles x3 Worm Xex x2 Worm Yagan x2 Spell Cards Double Summon x3 Axe of Despair x3 Sorcerous Spell Wall x3 Worm Call x3 Trap Cards Burst Rebirth x3 Extra Deck Fusion Monsters Humanoid Worm Drake x3 Worm Zero x3 Xyz Monsters Gagagigo the Risen x3 King of the Feral Imps x3

Chapter 4.1: Locked

You must use 300 DARK Orbs to unlock this chapter.

Chapter 4.2: Duel 2

• Reward (Loaner): "Ally of Justice Catastor" sleeves
• Reward (My Deck): 2 Legacy Pack tickets

Loaner Deck

A Deck that incorporates a myriad of DARK Machine monsters, as well as "Ally of Justice" monsters. Use the effect of the "Ally of Justice" monsters to bring out the effects of other cards. For example, "Ally of Justice Reverse Break" will be destroyed if there is a LIGHT monster on the field, but if you have "Desperado Barrel Dragon" in your hand, you can Special Summon it upon the former's destruction!

Responsive Mobile Weapons

Main Deck Monster Cards Ally of Justice Unlimiter x3 Black Salvo x3 Spell Reactor・RE Ally of Justice Cycle Reader Twin-Barrel Dragon x3 Ally of Justice Thousand Arms x3 Trap Reactor・Y FI Ally of Justice Reverse Break x3 Ally of Justice Quarantine x2 BM-4 Blast Spider x2 Summon Reactor・SK Blowback Dragon Flying Fortress SKY FIRE Desperado Barrel Dragon x3 Spell Cards Monster Reborn Heavy Metal Raiders x3 Solidarity x3 Trap Cards Super Team Buddy Force Unite! x3 Extra Deck Synchro Monsters Ally of Justice Catastor x3 Dark Strike Fighter x2 Samurai Destroyer F.A. Dawn Dragster Ally of Justice Light Gazer x2 Dark Flattop Ally of Justice Field Marshal Crystron Quariongandrax Vermillion Dragon Mech Ally of Justice Decisive Armor Xyz Monsters Gear Gigant X

Opponent's Deck

A Deck that contains Machine Union Monsters that support "Ally of Justice" monsters. A Union Monster is a monster that can become an Equip Card that supports a monster, or can be Special Summoned as a monster from its Equip Card state. Make good use of Union Monster's characteristics to Synchro Summon "Ally of Justice" monsters.

Conjoining Mobile Weapons

Main Deck Monster Cards Torque Tune Gear x3 Unauthorized Bootup Device Oilman x3 Machina Peacekeeper x3 Heavy Mech Support Platform x3 Ally of Justice Unknown Crusher x3 Ally of Justice Cyclone Creator x2 Heavy Mech Support Armor x2 Ally of Justice Thousand Arms x3 Ally of Justice Nullfier x3 Machina Gearframe x3 Machina Fortress Spell Cards Frontline Base x3 Machina Armored Unit x3 Combination Attack Trap Cards Roll Out! x3 Extra Deck Synchro Monsters Armory Arm x3 Ally of Justice Catastor x3 Ally of Justice Light Gazer x2 Ally of Justice Field Marshal x2 Ally of Justice Decisive Armor x2 Xyz Monsters Gear Gigant X x3

Chapter 4.2: Duel 3

• Reward (Loaner): "Ally of Justice Catastor" icon
• Reward (My Deck): 200 Gems

Chapter 5: Goal

This chapter serves as a Scenario.

• Reward: "Ally Mind" x3