Union Deck A Union Deck focuses on Summoning union monsters , equipping them to their host monsters and utilizing their effects . Some host monsters have the ability to summon their corresponding Union when summoned , thus making the process much easier . Union monsters , once combined , have abilities ranging from hand destruction , field control , and even beatdown , making this deck very adaptable to any particular threat . Union monsters also have a wide variety of special summoning , allowing them to swarm the field rather quickly . In addition , there are also two archetypes within unions , the well known A - to - Z series and the lesser Dark Blade cards . Beatdown Union Deck . This deck takes advantage of the abilities of some union monster ' s High ATK to do damage , such as Giant Orc and Indomitable Fighter Lei Lei . Aitsu , Koitsu , Doitsu , and Soitsu also fits into this section , as they boast quite a high ATK once combined ( Aitsu and Koitsu also gain a Piercing effect as well ) . While Giant Orc has a high ATK , Dark Blade is recommended instead , as he and Pitch - Dark Dragon gain just as much ATK as well as Piercing effect . However Giant Orc on it ' s own is still a formidable card . X - Head Cannon and Z - Metal Tank can also be used in this deck , as they boast a powerful 2400 ATK once combined and can fuse into XZ Tank Cannon for added effect . While equipping said monsters to each other might seem daunting , as it requires two summons , cards such as Frontline Base can rapidly swarm the field with union monsters to combine . Aitsu and Koitsu can , instead , be summoned through UFO Turtle and Mother Grizzly . Recommended Cards : Monsters : Fusions : Spells : Traps : Union Control . This deck uses Union monsters to control your opponent ' s hand and the field , by destroying your opponent ' s assets , hampering his monsters and generating field advantage . This deck can summon Union monsters much more easily due to most of the monsters being able to summon it ' s union through their own effect . Vampire Orchis and Decayed Commander are prime examples of this . Freezing Beast and Burning Beast are both unions , so they can both be summoned through Frontline Base in a single turn , while still allowing you to normal summon Vampire Orchis or Decayed Commander , instantly swarming the field with 4 monsters . V - Tiger Jet and W - Wing Catapult , along with their fusion , can also suppliment this deck ' s theme by changing your opponent ' s monsters ' battle positions . Vampire Orchis can further swarm the field with it ' s effect when it destroys monsters . Decayed Commander can destroy cards in your opponent ' s hand whenever he inflicts damage when equipped with Zombie Tiger . Burning Beast and Freezing Beast can hamper your opponent ' s spells and traps by destroying them through their combined effects . Because of the amount of monsters you will have on the field , Aitsu and Koitsu can also fit into this deck quite nicely . However , no more than one of each is recommended , and Double Summon should be used to ensure both come onto the field at the same time . Equip cards are also recommended , as most of the monsters needs to destroy opposing monsters to activate their effects , while themselves possessing lackluster ATKs ( even after the ATK boost from their unions ) . Recommended Cards : Monsters : Spells : Traps : XYZ Deck . As the title implies , this deck focuses on the three XYZ monsters and their fusion , XYZ - Dragon Cannon . Because of XYZ ' s ability to destroy any card on the field at the cost of a discard , this deck can come somewhat on par with Dark Armed Dragon Decks in terms of field control ( although the hefty cost of summoning the behemoth and the discard costs will hamper it compared to Dark Armed Dragon ) . Because of the discard costs once XYZ hits the field , cards that replenish hand advantage are quite useful , most notably Ojamagic can provide substantial ammo for XYZ . This deck can swarm the field fast , due to all the XYZ union monsters being level 4 ( and thus can be used with Frontline Base ' s effect ) , having less than 1500 ATK and being all LIGHT monsters ( thus searchable through both Sangan and Shining Angel ) . With the introduction of Jade Knight , even X - Head Cannon is searchable now , making this deck amazingly fast . Also , due to the effect of summoning XYZ by removing themselves from play , Return from different Dimension can be used to bring back all the monsters for one final attack , before fusing them again into a new XYZ Dragon Cannon . Due to the XYZ fusion not counting as being successfully fusion summoned , it will be wise to use Pot of Avarice on it , to return it to the Fusion deck to avoid deck - thickening . Royal Decree will also help in ensuring XYZ ' s effect goes through unhampered . Because of how XYZ is summoned , this deck is less susceptible to Macro Cosmos Decks , as the monsters are already removed . Recommended Cards . Monsters : Spells : Traps : Extra Deck : Dark Blade Deck . This deck focuses on Dark Blade and it ' s unions . While XYZ focused on card destruction and a powerful late - game monster , this deck focuses on attacking and quickly taking down your opponent ' s lifepoints . Dark Blade also comes with 2 of it ' s own unions , Kiryu and Pitch - Dark Dragon . Kiryu gives Dark Blade a substantial ATK boost , as well as granting him the ability to attack directly if you tribute Kiryu . Pitch Dark Dragon , on the other hand , boast versitility , as it can be fused with Dark Blade to form Dark Blade the Dragon Knight , as well has being able to be searched through two different searchers and being able to be summoned through Frontline Base . Dark Blade itself does not boast an outstanding ATK , nor does it boast an effect . However , due to it being a Warrior , it can be quickly searched out through Reinforcement of the Army , as well as benefit from other Warrior supports . This deck can also make the best use of Combination Attack , as Dark Blade and Kiryu has the most combined ATK , allowing them to do a devastating 3800 damage should they both attack directly ( 6500 if Dark Blade already attacked directly while equipped with Kiryu ) . This can also be pulled off quite early in the game , making this deck very devastating . If Kiryu is not available , Pitch - Dark Dragon can assist until Kiryu is available , as it gives Dark Blade a respectable ATK boost as well as a piercing effect . Recommended cards : Monsters : Spells : Traps : Itsu Deck . This deck focuses on the four monsters finished with " itsu " , they are Aitsu , Doitsu , Koitsu , and Soitsu , they all are fairies , so the use of Heralds can also be useful in this deck , as well as devastating , because Herald of Orange Light , is a Tuner Monster and can perform a Synchro Summon , a great way to protect yourself from annoying Trap Cards , is as easy as activating Royal Decree , and to protect your life points , use cards like Messenger of Peace , Swords of Revealing Light or Swords of Concealing Light ( the last one , to change opponent ' s monsters to Defense Position and then use the Defense Crusher Aitsu - Koitsu effect to inflict a lot of Battle Damage . Monsters : Spells : Traps : Extra Deck :