Overview and History

D/D/D -Different Dimension Demons- is a Deck piloted by Declan Akaba/Akaba Reiji in the Yu-Gi-Oh! ARC-V anime, that takes real life science, history and mythology and puts it into a corporate structure. After the release of the first cards in the TCG in the booster set Dimension of Chaos back in 2015, the deck had a rough start because compared to the OCG, Konami TCG decided to swap the releases of the structure decks Pendulum Domination, which brought a lot of support for the deck, and Rise of the true Dragons, where Blue-Eyes players needed a single card from for the World Championships in 2016. After the release of Pendulum Domination the deck had 2 weeks to shine until the release of the booster set Raging Tempest, which brought us the Tier 0 Zoodiac format. After that, it became quiet around the deck until the release of the booster set Battle of Chaos in February 2022 which brought new support. With it, the deck managed a top 8 finish in a Remote Duel YCS piloted by

and a Top 32 finish at YCS Hartford piloted by Matt Beck.

D/D/D is considered as one of the most difficult decks to master by many players. With the Release of new support for Fiend archetypes, this deck can show it's potential more.

About the Author

Hello, I'm

. I'm a Konami Judge and have been playing Yu-Gi-Oh! since the release of the booster set Legend of Blue-Eyes White Dragon back in 2002. I picked up D/D/D with the release of Dimension of Chaos back in 2015 and it became my main deck with the release of Pendulum Domination Structure Deck in 2017. Therefore it is my go-to deck in Master Duel.

Deck Strategy and Playstyle

The deck is very combo heavy and trys to set up multiple interuptions like Loading... or Loading... going first or to OTK the opponent when going second.

Core cards

Main Deck

D/D Savant Kepler

D/D Savant Kepler
Loading... , named after the scientist Johannes Kepler, is the main normal summon of the deck. On normal summon it can either return an other D/D card from your field back to your hand or it can add 1 dark contract from your deck to your hand. The main purpose of Loading... is to add Loading... to your hand, which can add other combo pieces to your hand. On its own it is also a 1 card combo.

It's Pendulum Scale of 10 can also came in handy sometimes, but you need to watch out for it's drawback.

D/D Savant Copernicus

D/D Savant Copernicus
Loading... , named after the scientist Nicolaus Copernicus, is your Loading... and the other main normal summon of the deck. With it you can send cards like Loading... and Loading... from your deck to further extend or even start your combos. It is also an important part of another 1 card combo.

It has a pendulum scale of 1 and it's Pendulum Effect can often times save you from the damage you take from your dark contract cards.

D/D Swirl Slime

D/D Swirl Slime
Loading... , based on an Amoeba, is the main combo starter of the deck. You can use it's effect in hand to fusion summon by using it and another D/D monster from your hand as fusion materials. It's second effect allows you to banish itself from the GY to special summon another D/D monster from your hand.

This card helps to set up a powerful board going first and to play through multiple disruptions.

D/D Gryphon

D/D Gryphon
Loading... , based on the Griffin from greek mythology, is the newest edition to the deck and one of the 2 main reasons this deck becomes relevant once again. It has 4 effects that can all be used during the same turn once each. The 2 effects that get used the most are to special summon itself from the hand if you control a D/D monster and to search a D/D card if it gets special summoned from the GY.

This card is a much needed extender for the deck and brings it to another level.

D/D Orthros

D/D Orthros
Loading... , based on the Orthrus from Greek mythology, has now become the main turner of the deck. You can special summon it from your hand after you took any type of damage. The downside is that you can only special summon fiend monsters after this card gets special summoned by any way.

It's other purpose is being the low scale for your pendulum summons and it also can be used as a backrow removal by destroying a other D/D card or dark contract you control.

D/D Lamia

D/D Lamia
Loading... , based on the Lamia from greek mythology, is the other turner of the deck. You can special summon it from your hand or GY by sending 1 D/D monster or Dark Contract from your hand or field to the GY but it will get banished when it leaves the field.

D/D Necro Slime

D/D Necro Slime
Loading... , also based on an Amoeba, is basically the counterpart to Loading... . It's effect allows you to fusion summon by banishing it and another D/D monster from the GY.

This card is essential to further your combo plays.

D/D/D Oblivion King Abyss Ragnarok

D/D/D Oblivion King Abyss Ragnarok
Loading... , named after Ragnarök from norse mythology, allows you to special summon a D/D/D monster from the GY when he is special summoned. And you can also tribute 1 other D/D monster to banish 1 monster your opponent controls.

The card is mainly used by placing it into the pendulum zone with the effect of Loading... . It's pendulum effect allows you to special summon a D/D monster from your GY when you special summon another D/D monster. But if you use the effect, the battle damage the opponent takes is halfed.

Go! - D/D/D Divine Zero King Rage

Go! - D/D/D Divine Zero King Rage
Loading... , based on Akaba Reiji/Declan Akaba himself, helps a lot with OTK plays. Not only can it shut down your opponents hand or backrow or attack directly by tributing another D/D monster, it also gains attack equal to your opponent's life points if they have 4000 or less life points.

Its other purpose is placing it into the pendulum zone with the effect of Loading... in order to be able to pendulum summon Loading... . It's pendulum effect also allows you to normale summon a level 5 or higher D/D monster without Tributing.

D/D Cerberus

D/D Cerberus
Loading... , based on the Cerberus from greek mythology, has only one real purpose in this deck, making Loading... a level 4 monster during the 1 card Kepler combo.

It being a level 4 monster can also help for some other combos.

D/D Savant Thomas

D/D Savant Thomas
Loading... , named after american inventor Thomas Edison, is mainly used by placing it into the pendulum zone with the effect of Loading... . It's pendulum effect allows you add a face-up monster from your extra deck back to your hand.

This card is a important combo piece for one of the 1 card combos.

Dark Contract with the Gate

Dark Contract with the Gate
Loading... is your main searcher of the Deck. It allows you to search any D/D monster once per turn. It is also a 1 card combo by itself. The down side is that you take 1000 points of burn damage during each of your standby phases as long as it is face-up on your field.

Dark Contract with the Swamp King

Dark Contract with the Swamp King
Loading... allows you to fusion summon any fiend monster and if it is a D/D monster, you can also banish D/D monster from your GY as fusion material.