Instructions for playing ABC (XYZ Union)

Instructions for playing ABC (XYZ Union)

Welcome to this detailed guide on the Tier 2 ABC deck, also known as XYZ Union – a deck that isn't really an archetype e but possesses immense historical value and incredible power in Yu-Gi-Oh! Duel Links.

Once the game's first Contact Fusion and Union monsters, ABCXYZ are back stronger than ever thanks to several brand-new support cards and a Kaiba-exclusive Skill. The core gameplay revolves around leveraging B-Buster Drake 's infinite search ability and the Level 4 Machine/Light monsters to create an overwhelming card advantage. While the deck demands careful resource management and is locked to the Light type, its ability to set up an end board filled with negates and devastating Hyper Dragon Cannon machines will certainly make opponents wary.




A few words about Deck

The history of the development of the ABCXYZ Union deck.

Although not officially classified as an "archetype" in Yu-Gi-Oh! standards, the ABCXYZ series of Machine/Light Machine cards boasts a fascinating and iconic history within the game:

  • 2003 - The Legendary Beginning: The XYZ card series debuted in the Magician's Force box. The trio of X-Head Cannon, Y-Dragon Head, and Z-Metal Tank were the first Union and Contact Fusion monsters ever to exist in the game. They could flexibly fuse into two-material versions or create the main XYZ-Dragon Cannon – a card so cool that it had two different alternate artworks at the time. Associated with Seto Kaiba in Battle City and the Pyramid of Light anime, this card represents the childhood of many duelists.

  • 2005 - The GX Era & VWXYZ Expansion: Received a major boost in Elemental Energy boxes with the introduction of the V-Tiger Jet and W-Wing Catapult. From here, players could craft the colossal monster VWXYZ-Dragon Catapult Cannon. This card series continued to shine on screen through the hands of Chazz Princeton in Yu-Gi-Oh! GX.

  • 2016 - The golden age of meta dominance: Seto Kaiba's Structure Deck brought about spirit-oriented remakes: A-Assault Core, B-Buster Drake, and C-Crush Wyvern, along with the flagship ABC-Dragon Buster. The ABC deck truly became a dominant force in the meta throughout 2016-2017.

  • A peculiar combination with Ojama: Thanks to the Chazz Princeton character, XYZ received incredibly unique cross-support cards with Ojama and Armed Dragon. This "bizarre" combination gave rise to Armed Dragon Catapult Cannon and helped transform XYZ-Armed Dragon Ojamas into a highly effective deck for competitive play in tournaments.

  • 2025 - A true revival: The Maze of the Master card box brings live, modern remakes of three original pieces: X-Cross Cannon, Y-Dragon Head (new version), and Zillion Tank, along with the new main carry XYZ Hyper Dragon Cannon.

  • The journey in Duel Links: The original XYZ cards, which had long been obscured in the Electric Overload box, along with the solitary contributions of B-Buster Drake and Union Scramble thousands of days ago, have only now, with the wave of new support cards combined with Kaiba's exclusive skill, truly exploded and had the chance to shine in their rightful place.



Monsters in the main deck

Original XYZ Pieces (OG XYZ): A crucial point to remember when building your team is that you should absolutely avoid using older generation XYZ pieces (X-Head Cannon, Y-Dragon Head, Z-Metal Tank). They have been completely overshadowed by the current meta (powercrept), and attempting to include them in your Main Deck will only reduce the stability and overall strength of the deck.

X-Cross Cannon (x1)
Card rarity
X-Cross Cannon
Card rarity
X-Cross Cannon

It's especially versatile if you already have a Fusion or Union monster of the same type on your field. Furthermore, it can directly draw a Union monster from your deck to equip itself. While using this effect locks you to a Light monster for the entire turn and it's not a Union monster itself, it's still an excellent starter monster.

Y-Yare Head (x1-2)
Card rarity
Y-Yare Head
Card rarity
Y-Yare Head

Upon being summoned to the field, this card allows you to equip a 4-star Machine/Light monster from your hand or Graveyard to it (with the condition that it locks the Light type). It possesses the unique Union effect of removing equipment to Special Summon itself.

The most terrifying aspect that makes this card so powerful is that its effects are not limited to "not once per turn," opening up the potential for endless combo chains of summoning and re-equipping.

Z-Zillion Tank (x1)
Card rarity
Z-Zillion Tank
Card rarity
Z-Zillion Tank

This card possesses mechanics and combat stats that are almost identical to the new Y-Dragon Head. The only difference, and also the core strategic value of Zillion Tank, lies in the fact that it equips a monster from the Banishment area instead of from your hand or graveyard. This allows you to recycle and completely rotate resources that were discarded in previous combos.

B-Buster Drake (x3)
UR rarity
B-Buster Drake
UR rarity
B-Buster Drake

B-Buster Drake is the most formidable card advantage generator in this deck. Besides providing a shield against spell cards when used as an item, its true power lies in its search ability: whenever it's sent from the field to the graveyard, you are allowed to draw any Union monster from your deck into your hand.

Similar to the two pieces above, this effect isn't limited to "once per turn," turning it into a massive search engine when combined with continuous combos that bring it onto the field and then push it down to the Graveyard.

Union Driver, Union Pilot and Unauthorized Bootup Device (.)
Card rarity
Union Driver
Card rarity
Union Driver
Card rarity
Union Pilot
Card rarity
Union Pilot
UR rarity
Unauthorized Bootup Device
UR rarity
Unauthorized Bootup Device

Support Union monsters like Union Driver have a rather interesting self-replacement effect, but when paired with Union Pilot, they become too conditional and cumbersome. Similarly, Unauthorized Bootup Device doesn't offer much practical value. Overall, you can completely ignore this group of monsters as they aren't really necessary or highly effective within the 20-card space limit of the Duel Links format.

C-Crush Wyvern (x2)
Card rarity
C-Crush Wyvern
Card rarity
C-Crush Wyvern

It acts as a useful extender when being taken to the grave.

With B-Buster, you'll have plenty of resources in hand, so C-Crush Wyrem can summon the monsters in your hand, making full use of those resources.

A-Assault Core (x2)
Card rarity
A-Assault Core
Card rarity
A-Assault Core

Besides its primary purpose of restoring resources from the graveyard, this card also has a very interesting effect: IT MAKES THE MONSTER EQUIPPED WITH THIS CARD UNAFFECTED BY OPPONENT MONSTER EFFECTS . Therefore, when combined with Unauthorized Reactivation , it becomes a formidable weapon to protect boss monsters.

Heavy Mech Support Armor and Torque Tune Gear (x1)
UR rarity
Heavy Mech Support Armor
UR rarity
Heavy Mech Support Armor
R rarity
Torque Tune Gear
R rarity
Torque Tune Gear

These two cards are not part of the Archetype but are incredibly powerful mercenary cards for Union.
  • Torque : acts as the main tuner, enabling us to perform Synchro maneuvers such as Ancient Fairy Dragon, Arc Light, Dawn Dragster, etc.

  • Heavy Mech : revives Union monsters from the graveyard, usually Torque, to instantly Synchro Summon Arc Light. Even without Synchro Summoning, Heavy Mech is still very useful as an extender to prolong combo chains.



Spell/Trap

 

Union Activation (x0-1)
Card rarity
Union Activation
Card rarity
Union Activation

This card is described by the author as the perfect combination of Reinforcement of the Army and Foolish Burial . Activating this card allows you to send one card from your deck to the Graveyard, then search for another card with the same attack power but a different name to add to your hand.

Additionally, it has a Graveyard effect with a strong anime feel: if you summon multiple Machine/Light-type monsters at the same time, you can instantly search for and Normal Summon a giant monster ( like the god Obelisk ).

However, in the 20-card format, this card isn't really useful, and we already have a Skill and more than enough search capabilities. Therefore, this card is often removed to make room for more useful Tech/Staple cards.

Union Scramble (x1)
SR rarity
Union Scramble
SR rarity
Union Scramble

This is an incredibly powerful Trap Card, serving as a field-filling and resource-recovering tool. It can revive up to three Normal or Union Mechanical/Light monsters that are currently banished. Furthermore, you can banish this Trap Card from the Graveyard to retrieve one of its type monsters from the banished area back to your hand. The best part is Kaiba's exclusive ability, which allows you to directly set this card from your deck and activate it immediately during that turn.

Unauthorized Reactivation (x0-1)
Card rarity
Unauthorized Reactivation
Card rarity
Unauthorized Reactivation

This is a pretty good Union support spell. It allows you to directly draw a Union monster from your deck and equip it to a monster you control, in exchange for which the equipped monster cannot Special Summon this turn.

Although it has good combo potential, it's primarily used for protecting bosses and can be omitted.

XYZ Combine and XYZ Hyper Cannon (x0)
Card rarity
XYZ Combine
Card rarity
XYZ Combine
Card rarity
XYZ Hyper Cannon
Card rarity
XYZ Hyper Cannon

These two cards have a fatal flaw: they are designed to support the original XYZ Combine or old Fusion monsters. Since these older cards are outdated and you absolutely shouldn't include them in your deck, XYZ Combine and XYZ Hyper Cannon become useless as a result. The advice is to remove them from your deck list.

A-to-Z Energy Load (x0-1)
Card rarity
A-to-Z Energy Load
Card rarity
A-to-Z Energy Load

This is a truly disappointing support card. Despite being designed as a trap card to grant draw potential, its mechanism is cumbersome and far less effective than traditional cards like Pot of Avarice . You shouldn't waste deck space on this trap card.

Union Hangar (x2-3)
Card rarity
Union Hangar
Card rarity
Union Hangar

This new Field card is a must-have in the deck. It has both the ability to search and directly equip Union monsters. Although those monsters cannot be Special Summoned during the turn, you can utilize their effects when they are sent to the graveyard, such as B-Buster or C-Crush Wyren.

Galaxy Journey (x0-1)
Card rarity
Galaxy Journey
Card rarity
Galaxy Journey

Extender directly summons a Light/Dark monster from the banish zone where your deck is full of Light-type monsters.

This card is mainly conveniently searched for by Galaxy Photon Dragon during combos performed by GPD, who is of the "Dragon" type and can therefore be used to summon Hieratic Seal, making it an extremely powerful Endboard piece.

Powerful and incredibly useful Tech/Staple
UR rarity
Necrovalley
UR rarity
Necrovalley
UR rarity
Effect Veiler
UR rarity
Effect Veiler
UR rarity
Artifact Lancea
UR rarity
Artifact Lancea
UR rarity
Forbidden Droplet
UR rarity
Forbidden Droplet
UR rarity
Droll & Lock Bird
UR rarity
Droll & Lock Bird
UR rarity
Sauravis, the Ancient and Ascended
UR rarity
Sauravis, the Ancient and Ascended
UR rarity
Infinite Impermanence
UR rarity
Infinite Impermanence

 



Extra Deck Monsters

 

XYZ-Dragon Cannon (x0)
UR rarity
XYZ-Dragon Cannon
UR rarity
XYZ-Dragon Cannon

This is Seto Kaiba's classic Fusion Monster. Its effect is incredibly simple yet effective: discard one card from your hand to destroy one card on the field. Its most terrifying strength is that this effect is not limited to "once per turn." This means that as long as you have cards in your hand to discard, you can continuously clear your opponent's field. This monster is extremely useful in situations where you go second and need to break through your opponent's defenses.

But since the skill has already put this card into Extra, we don't need to bring it. Also, although it clears the field quite well, it's not a quick effect, so we can't use it as an endboard.

Union Controller (x0-1)
Card rarity
Union Controller
Card rarity
Union Controller

This is a Contact Fusion beast that acts as an indispensable combo extender in 90% of combos.
It requires a Machine/Light type monster combined with Y-Dragon Head (new version) or Zillion Tank. When played, it retrieves a Union Spell/Trap card and allows you to Special Summon a Union monster. This card helps maintain a consistent combo rhythm.

However, as above, this card is also added to the extras thanks to its skin, so we can skip it.

XYZ-Hyper Dragon Cannon (x1)
Card rarity
XYZ-Hyper Dragon Cannon
Card rarity
XYZ-Hyper Dragon Cannon

This is a remake and also the new, massive flagship of the deck.

Its card-destroying effect is similar to the original but is limited to "soft once per turn," meaning if you have multiple copies on the field, each copy is destroyed only once. However, it possesses an incredibly powerful self-replacement ability: by banishing this card from the Graveyard, then revealing a level 8 Light Machine Fusion from another Extra Deck, you are allowed to Special Summon all three of its materials from the Graveyard or the banishment area to the field.

Your optimal end board will always feature this destructive machine.

Platinum Gadget (x1)
Card rarity
Platinum Gadget
Card rarity
Platinum Gadget

A Link monster is incredibly important for connecting long combo chains. Often summoned by Link Summoning from X-Cross Cannon and a Union monster, Platinum Gadget allows you to Special Summon a Tier 4 Machine monster (like Y-Dragon Head) directly from your hand to the field, creating the perfect springboard to continue Fusion or summon an Xyz monster.

Cyber Dragon Infinity, Cyber Dragon Nova and Tellarknight Ptolemaeus (Rank-up)
UR rarity
Cyber Dragon Infinity
UR rarity
Cyber Dragon Infinity
UR rarity
Cyber Dragon Nova
UR rarity
Cyber Dragon Nova
UR rarity
Tellarknight Ptolemaeus
UR rarity
Tellarknight Ptolemaeus

This is an Xyz Summon (Rank-up) chain that provides ultimate protection for your team. By using 3 Tier 4 monsters to summon Ptolemaeus, you can dismantle the materials to upgrade it to Cyber ​​Dragon Nova, instantly transforming it into Cyber ​​Dragon Infinity. Infinity not only has the ability to draw monsters for materials but also provides an omni-negate, allowing you to confidently shut down any comeback attempts by your opponent.

Galaxy Photon Dragon and Protector Whelp of the Destruction Swordsman (x1)
Card rarity
Galaxy Photon Dragon
Card rarity
Galaxy Photon Dragon
SR rarity
Protector Whelp of the Destruction Swordsman
SR rarity
Protector Whelp of the Destruction Swordsman

This Xyz card is the key piece to create the optimal Hieratic Seal defense. You will use 2 Tier 4 monsters to summon Galaxy Photon Dragon in order to find the spell Galaxy Journey , and then use it as Dragon material to Link Summon.

Protector Whelp has the exact same function, but it's inferior to GPD because it can't utilize any of its effects.

Ancient Fairy Dragon (x1)
UR rarity
Limited to 1 copy
Ancient Fairy Dragon
UR rarity
Limited to 1 copy
Ancient Fairy Dragon

Easily summoned by Torque (the deck's only tuner) + Controller
90% of textbook combos want this card. It can help you trade a Union Hangar with its effect depleted for a succulent Necro Valley . Additionally, it can give you an extra minion summon from your hand (something ABZ-XYZ cards really need).

ABC-Dragon Buster (x0-1)
Card rarity
ABC-Dragon Buster
Card rarity
ABC-Dragon Buster

One of the two bosses of the archetype, instead of destroying, it banishes, but when paired with XYZ, this duo drains resources quite badly.

Herald of the Arc Light (x1)
UR rarity
Herald of the Arc Light
UR rarity
Herald of the Arc Light

There's nothing more to say about this card.

Additional Extra Deck options
SR rarity
Knightmare Phoenix
SR rarity
Knightmare Phoenix
SR rarity
Underworld Goddess of the Closed World
SR rarity
Underworld Goddess of the Closed World
R rarity
Hip Hoshiningen
R rarity
Hip Hoshiningen
Card rarity
F.A. Dawn Dragster
Card rarity
F.A. Dawn Dragster

 



Skill

 

Hyper Cannon Activation (Skill Card) (100%)
UR rarity
Hyper Cannon Activation (Skill Card)
UR rarity
Hyper Cannon Activation (Skill Card)

Thanks to this skill, the awkwardness of assembling Union pieces on the field and in the Graveyard is almost completely eliminated. It outlines a clear and stable path for you to quickly fuse powerful "final bosses" like XYZ-Hyper Dragon Cannon or ABC-Dragon Buster , ready to sweep your opponent's board clean.

Thanks to this skill, we can free up quite a few extra deck slots, assist with searching, and directly summon a Union spell/trap. Frankly, these are just some of the basic things a support skill for archetypes in general can do for a deck in the current Duel Links meta.



Combo/How to play

 

Union Hangar (Combo 1)
Card rarity
Union Hangar
Card rarity
Union Hangar

Combo ABC #1: Union Hangar 1-Card Basic Combo

Click here to view

Y-Yare Head (Combo 2)
Card rarity
Y-Yare Head
Card rarity
Y-Yare Head

Combo ABC #1: 1 Any ABC-XYZ Monster (1 Basic Combo Card)

B-Buster Drake (Combo 3)
UR rarity
B-Buster Drake
UR rarity
B-Buster Drake

Combo ABC #4: Herald Arc Light combo (Using only 1 B-Buster card)


Union Hangar (Combo 4 - Second Direction Field)
Card rarity
Union Hangar
Card rarity
Union Hangar

Combo ABC #5: Herald Arc Light combo (Using only 1 Field Union Hangar card)



Conclusion

XYZ Union is not only a ticket to take players back to their childhood with Seto Kaiba's iconic machines, but also a true "Heavy-Combo" force with extremely high power in Duel Links.

Although it requires players to have the skill to memorize complex combo sequences, cleverly manage board space, and calculate how to dodge Hand Traps, the satisfying feeling of setting up a bunch of disruptions to throw at your opponent is undeniable. If you love resource-intensive gameplay and are passionate about destructive light machines, XYZ Union is definitely a deck worth investing in to climb the ranks.




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