Decks

This page lists original Deck concepts which still weren't designated to a specific character.

Labyrinth Deck
A Deck based on the original concept of the iconic "Gate Guardian" used by the Mei-Kyuu (or Para-Dox) brothers in the original manga.

It consists of using Level 6 monsters who nullify damage to the player, and when they gather all pieces, they can combine into the powerful "Gate Guardian the Elder". The Deck also includes labyrinth-themed cards to support these monsters, mirroring the brother's Labyrinth Duel concept.

Pyramid of Light Deck
A Deck based on Anubis from the Pyramid of Light movie. It consists of using "Pyramid" Continuous Traps which allow the player to easily bring out Level 10 powercreeps from their hand, but they are dependant on the "Pyamid" cards and are destroyed unless they are in play.

Venom World Deck
A Deck based on Professor Cobra/Viper from GX. It consists of placing Venom Counters to cripple the opponent's monsters, while the player's monsters just grow stronger.

Rebel Meklord Deck
A Deck based on the Three Pure Nobles of Iliaster from 5D's, with a new set of three Meklord bosses, including smaller servants which help triggering their effects.

Numeron Code Deck
A Deck based on Don Thousand from ZEXAL. It is filled with effects that rewrite the opponent's choices and effects.

Archinfernity (Designated)
A revamp of the classic "Infernity" Deck used by Kiryu, this Deck consists in literally using no cards from the hand. It discards the player's whole hand and seals their draw - the player uses their "hand" directly from the Graveyard.

Rei's Mystic Deck
Expanding on Rei's Mystic Deck, this deck is composed of monsters who are hard to Summon, and to top it, you can only Summon one of its boss monsters each turn. The reward for being able to Summon and maintain these monsters is that, if you manage to gather two of them, you get a set of powerful effects, while gathering all three may result in an automatic win condition.

Halil's Lamp Deck
A toolbox Deck expanding on Halil's Deck, where you can fuse "La Jinn" with Lamps of different Attributes. Each Fusion results in a "Jinn" with a different set of effects, making the user able to choose which route to take according to what he's currently facing.

Techroids
A 3rd "roid" sub-archetype featuring Xyz Monsters (continuing on the steps of the "Vehicroid" Fusions used by Sho and "Speedroid" Synchros used by Yugo).

They focus on Summoning low Rank monsters with useful effects but weak stats, but that are powered up when they detach their materials for their effects. With their effects that can be activated multiple times, and support cards like "Techroid Changing Charger", they can quickly rise their ATKs.

Amon's Sealed Beast Deck
An enhanced version of Amon's Deck from the GX manga. It features regular Effect Monsters "Sealed Beasts" with regular effects. When different "Mantra" cards are in play, they become "Unsealed Beasts" with much more powerful effects.

Misawa's Magnet Warrior Deck (Designated)
An expansion of Misawa's Magnet Warrior from the GX anime. It consists of using effects to manipulate the targets of attacks and effects.

Misawa's Fire Deck (Designated)
A Deck featuring Misawa's "Fire Dragon" which was never shown in the series. This Deck consists in quickly Summoning Fire Dragon and inflicting heavy damage, turning the opponent's monsters into FIRE Pyro monsters that damage their own user.

Theme-wise, the Deck is based on the Otto Cycle of a four-stroke internal combustion engine, following the pattern of Misawa's Decks (Water being chemical, Earth being electrical, and Fire being mechanical). The name "C³" means "Combustion Cycle Critter".

As a variant, the Deck may also be used alongside Misawa's "Water Dragon" for a Water & Fire Deck, since both dragons have synergy with one another. It's a less consistent variant, but with a deadly combination that can inflict heavy damage very quickly mixing both Dragon's effects. In a tournament, this character could run a full Side Deck which, when swapped around, turns the Deck into this variant. He uses this variant against opponents he judges that should be defeated ASAP, with this variant easily delivering OTKs.

Hishakaku's Shogi Deck (Designated)
Expanding Hishakaku's Shogi Deck from the ZEXAL manga, a Deck based on the board game of Shogi, where each piece has a specific range of effect based on card zones. The area of effect of each piece can be boosted by promoting that piece, making it harder and harder for the opponent to avoid their destructive effects.

Cedar Mill's High-Tech Marionette Deck (Designated)
An exception to this list, this Deck only takes the design of Cedar Mill's unshown Deck from Yu-Gi-Oh! R as a kind of fun reference.

This Deck consists of Puppeteers who Summon Marionette Tokens to the field and hide behind them as they fight. Each Puppeteer becomes invulnerable while they control a Marionette, and grants a different effect to them. Alternatively, the Puppeteers, as Tuner monsters, can tune with the Marionette Tokens to make powerful Synchros.

Bommer's Manga Deck
Expanding on Bommer's powerful Fusions from the 5D's manga, this Deck mixes Pyro and Machine monsters to quickly Fusion Summon "Blaze Fenix" and "Volcannon" to deliver heavy effect damage.

To further increase the damage the Deck delivers, the base Pyro monsters also have damaging effects, while the base Machine monsters can attack directly.

Kaiba's Material Monsters
A Deck expanding on Kaiba's "Material" monsters from Yu-Gi-Oh! R. The Deck consists in a straightforward strategy where you put monsters together to Summon chimeras, and when the chimeras are defeated, part of the materials remain on the field, so the player can Summon a new chimera next turn.

Haga's Cocoon of Evolution Deck
A Deck expanding on Haga's/Weevil's evolving Moth Deck. This modern version is a Rank-Up centered Deck, consisting in quickly Ranking Up the moth to its most powerful forms.

It also includes variants of his Paracide-Insect Barrier combo to protect his moth until it can mature.

Deliver Fever Deck (Designated)
Lore: A Deck created by Yamamoto after seeing several "trash cards" being thrown away. He loves this game and doesn't want any of the cards they produce to be unwanted like that, so inspired by this thoughts, he created this Deck to make even those trash cards useful.

Playing style: This Deck consists of giving negative Spells/Traps to the opponent and forcing them to use them. It also features effects that rightaway swap control of Spell/Trap Cards, making it so that the player gains control of the opponent's strong cards, while the opponent gets stuck with terrible ones.

Fusion Substitute Deck (Designated)
Inspired on the concept of "King of the Swamp", this Deck consists solely of Fusion Substitute monsters who can replace any specific Fusion Materials. With this, the user is capable of Summoning Fusion Monsters of all kinds, but in exchange, they cannot use any monster aside from Fusions.

Geometry Deck
Inspired by "Triangle Warrior", this Deck consists of monsters who can easily swarm the field for Synchro Summons in exchange of giving Tokens to the opponent. However, the deck uses cards that take advantage of the opponent controlling Token monsters and turns that into something bad for them.

Doriado
A Deck inspired on "Elemental Mistress Doriado", consisting on multi-Attribute monsters. It includes a number of cards that take advantage of controlling multiple Attributes.

Summoned Skull
(Waiting for the series to be completed to further develop it)

D.D. Skull Deck (Version 2)
A Pendulum Burn Deck that uses cards like Skull Invitation and Fatal Abacus, taking advantage of the fact that the player's cards go to the Extra Deck instead.

Garzett Deck (Designated)
A power Deck utilizing the "Maju Garzett" series which gains ATK based on the ATK of the monsters Tributed to Summon them.

Dr. Ape
Super intelligent apes whose research managed to alter the characteristics of a monster's genes.

Their effects alter the Types of the monsters on the field, allowing the player to use powerful anti-Type cards against them. Additionally, all Main Deck monsters are Tuner monsters, once they can tune with monsters the opponent controls that share a Type with them.

Winged Kuriboh Deck
A Deck spearheaded by "Winged Kuriboh" featuring evolutions of all LVs. Its focus is to quickly ladder up Levels to reach the most powerful forms of "Winged Kuriboh".

Fusion Gate Deck
A Deck featuring generic Fusion Monsters to swarm, inspired in the idea that all other Extra Deck Monsters have generic materials.

The Deck centers around using Fusion Gate to keep Fusion Summoning monsters with generic materials, while the Main Deck monsters maintain advantage.

Law of the Normal Deck
A Deck with Level 1 and 2 Effect Monsters that uses effects that can treat them as Normal Monsters, making them able to abuse powerful support cards with less drawbacks.

Iron Wall (Designated)
A Deck featuring several cards with powerful effects but the "banish it when it leaves the field" drawback, that uses "Iron Wall" cards based on "Imperial Iron Wall" that keep them from being banished, so they can use their effects endlessly.

As a plus, this Deck is also powerful against Decks with effects that banish cards.

Time Wizard Deck
A Deck featuring "Time Wizard" monsters and "Baby" monsters, based on the iconic "Time Wizard" and "Baby Dragon" combo. The "Time Wizards" have coin toss effects, in which one outcome creates a negative effect for opponent monsters, and the other sends the player's own monsters besides the wizard to the GY; however, if it sends "Baby" monsters, it Special Summons their older Fusion versions from the Extra Deck.

Relativity Deck
A physics-themed Deck inspired by "Relativity Field". This Deck focuses on exponentially crippling the opponent with effects that stack up each other.

Mirror Force Deck
A Deck using "Mirror Force" and all of its Attribute counterparts, alongside "The Fang of Critias" to turn them into powerful monsters.

King Tiger Deck (Designated)
A Deck expanding on "King Tiger Wanghu", with deadly effects that kill off monsters as soon as they are Summoned.

This Deck becomes dangerous against Decks that swarm weak monsters to serve as material for stronger monsters.

Magioshka
A Deck based on the Russian Matryoshka, composed of monsters who pile up on top of each other, creating multi-layered monsters. When a "Magioshka" monster would be defeated, only the first layer is destroyed, while the monsters that were piled up beneath it remain on the field.

These monsters' engine makes it possible to Summon Xyz Monsters which requires over five Xyz Materials, since each "Magioshka" monster serves as a number of Xyz materials equal to the number of cards piled up within itself.

Update: They could be Level/Rank 6 monsters instead, that are Summoned without Tributes on top of other "Magioshka" monsters.

Astral
A Deck composed of uncorporeal monsters that fight in the astral realm rather than in the physical world. They possess effects that allow them to "battle" with monsters on the hand, Deck or Graveyard, and inflict Astral Damage, which cannot be reduced or prevented by cards like "Waboku" and "One Day of Peace".

Link-Up (might need a rename due to Link Monsters existing now)
A Ritual Deck that forces the opponent to swarm their field while linking with their monsters - turning them into "Link-Up" monsters. When Ritual Summoning, the player can use "linked" monsters from both fields as tributes.

The Deck also includes effects that make the player's monsters stronger based on the number of "linked" monsters on the field.

Battery-Empowered Warbots
Powerful monsters with lots of ATK and strong effects, but their batteries quickly wear off, so unless they "recharge", they quickly become weaker and weaker.

Finto and Zemto
"Finto" and "Zemto" are low-Level Insect vanilla monsters who attract a species of unique parasite monsters because of their special properties. These parasites support "Finto" and "Zemto" granting them all kinds of effects, making these seemingly weak monsters become very troublesome to handle.

Recycling Craftsmen
Skilled human crafstmen who collect all kinds of "junk" machines which were thrown away but they see potential in, and give them new life.

Conists of high-Level defective Machine monsters with negative effects, which gain "Reborn effects" when Special Summoned by the effects of the "Recycling Craftsmen", turning into powerful allies.

UPDATE: Rework concept - The Deck could contain Machine-themed monsters, Spells and Traps with regular effects, and the Recycling Cards can re-use those already used cards from the GY but with weaker effects than the original. For example, you can use a Spell normally from your hand, and then use it once more from the GY with the recycling effect.

Doublewing
Lore: A clan of winged monsters formed by members of other "clans" of winged monsters. They seek to achieve higher heights by fusing and obtaining the power of the most powerful winged monsters.

The Fusions monsters possess two pairs of wings, each pair being the wings of one of the monsters he uses the power of.

Playing style: A Winged Beast Deck focused on Fusion tactics, it possesses cards that return themselves to the hand instead of being sent to the Graveyard, so they can maintain advantage to Fusion Summon.

Kyuseiju
Lore: A play on "九生" (may be read as "Kyuusei", the nine lives of a cat) and "聖獣" ("Seijuu", sacred beast). A Deck featuring holy beasts with multiple lives.

Playing style: A Rank 9 Beast Deck consisting of legit Level 9 monsters with Special Summoning effects.

Random idea: This Deck could be used by an AI opponent in an event, and it returns later on upgraded with a Rank 10/11 Deck, possibly a variant of the Pyramid of Light Deck (since it also involves feline monsters).

Remok-On Engine
Lore: A play on "Rimokon", the Japanese word for "remote control". A group of robot monsters controlled by transmission towers who can switch between transmiters - each transmiter giving them a different configuration.

Playing style: A Deck consisting of Machine Normal Monsters who are granted different sets of effects based on the "Remok-On Engine" Spells that are played. These Spells can be exchanged for another one during either player's turn, making the player able to quickly switch the monsters' effects based on the current situation.

Mushi League
A Justice League-esque group of powerful Insect Super Heroes.

Just like the Justice League, each hero is strong enough to lead a mission by itself and has a different origin. The Deck contains a number of independent boss monsters who can easily be Summoned by their specific origin cards or by supporting heroes. It's a Boss Rush deck that Summons high-Level monsters one after another.

Matador Deck
A Deck with "Matador" monsters that dodge opponent's attacks and targeting effects. It also includes effects like "Matador Arena" which turn wide-range effects into targeting ones, so that they aren't vulnerable to mass destruction.

Neo Hiro Deck
An improved version of Hiro's Deck from YGO another. A Devastation Deck with effects that destroy cards and that damage both players, allowing for massive amounts of damage - making it a dangerous Deck that can end duels very quickly.

Compact Fields Deck
Inspired by the gameplay of Plants vs Zombies Heroes. This deck consists of transforming each column of the field in a different "compact field", and placing specialized monsters to fight in each field. It's a highly disruptive deck that consists on heavily hindering the opponent's monsters.

Overlife Deck
Psychic monsters who become ghosts after dying - more precisely, after they are defeated, they leave behind Zombie-Type ghost tokens with the same stats as them.

The Deck revolves around keeping field presence, with the opponent having to defeat each monster twice (cards such as "Ghosts Are Tough!" and "Token Stampede" making the ghosts even harder to get rid of), while making powerful Synchros as well, once the Zombie tokens are tuner monsters.

Update: The name "Kasei" (過生, lit. "Beyond Life") Doctrine might sound less Engrish.

Lizard Wizard Deck
A Deck consisting of humanoid reptiles which are either mages or scientists and have enhanced their molting abilities.

When the Xyz Monsters would be defeated, they instead "molt" - they bring out a different Xyz keeping the last Xyz and its materials as the new monster's materials. They become more powerful as they stack up Xyz Materials (their effects don't require detaching, but instead work based on the number of materials they have).

Artificial Deck
A Deck consisting solely of Spells and Traps that serve as substitute for monsters. The Spells have offensive effects that substitute monsters' attacks and destroying effects and the Traps have defensive effects that protect the player and the other "artifical monsters".

UPDATE: Idea for usage. In Phase 2, this Deck can be used as a mean to mentally torment Hanaoka. Most of Hanaoka's monsters revolve around fighting other monsters, so she finds trouble fighting this Deck, which has no actual monsters but still produces artificial battles.

The Deck can be used by a creepy and inhuman looking artificial being that's either real and created by someone or is in Hanaoka's mind, and the "Artificial" cards slowly create an artificial human. Hanaoka is horrified, saying that's horrible, but the being says there's nothing wrong with it - it mirrors Hanaoka "creating" an artificial person that isn't herself.

TK's Spike Deck
An enhanced version of TK's Deck from YGO another.

This Deck features spiked cards that injure the opponent as they attack while reducing damage to you, so basically, the opponent takes more damage from their attacks than the user.

Yuurei Deck
A Deck of Pendulum Spirit monsters that use Synchro Summon. In exchange for being Pendulum Tuners, both the user's Main Deck and Extra Deck monsters return to the hand/Extra Deck during the End Phase.

The Synchro Monsters have effects that are triggered upon Summon, and they are re-Summoned every turn, triggering those effects over and over.

The World as One
An improved version of Jun Miota's Deck for YGO another. This Deck makes it so that both players share the same field and Graveyard, with the player using lots of effects to take advantage of this gimmick.

Since this Deck is somewhat gimmicky and complex, it may be used by a boss character, or be featured in a special event.

Sinner Deck
Reflecting on how pleasant and empowering it can be to comit sins, however, they have colateral effects afterwards, this is a high-potential high-risk Deck with monsters that possess really powerful effects, but that punish the player afterwards.

Since the heavy drawbacks kick in during the player's next turn, the Deck includes effects that skip the user's turn in an attempt to avoid them.

Volleybrawl Deck (Designated)
A Volleyball Team of Beast-Warriors because Kank loves playing volleyball.

Their gimmick reflects how a volleyball formation works, with the blockers and receivers stopping opponent attacks, setters preparing the stage for the spikers, and spikers attacking. The team's whole gimmick works during the Battle Phase, so the court field plays an important part protecting them during the remaining phases.

If a monster receives an opponent's attack while there's a setter and wing spiker on the field, the player gets a unique gimmick of being able to counterattack right away, during the opponent's Battle Phase. Furthermore, like in a volleyball match, the user has a Libero and Pintch Server to swap around with another player for the duration of a turn, with the Libero strenghtening the defense moves, and the Pintch Server being a powerful first-attacker in the Battle Phase.

Redeemed Ghosts
A Deck of "nice" ghosts who promised to never harm people again. So they harm their Deck instead.

This Deck consists in an aggressive mill strategy; these ghosts have a strategy focused on achieving high ATKs and battling, however, they don't inflict damage, instead, milling the opponent's Deck based on the amount of damage they'd deliver.

Akira's Titanium Deck
A revamp of Akira's Titanium Deck from YGO another.

The Titanium Soldiers are aggressive monsters with powerful offensive effects, but that harm the user as well. Meanwhile, the Titanium Plating Spells/Traps offer strong layers of protection for both monsters and player. Together, the Titanium monsters and backrow result in a dangerous formation that offers both offensive and defensive power.

Hound Deck
A scent hound Deck possibly used by an investigator on Phase 2 (because of the possible theme for the plot). It consists of cards that track down the opponent's cards and never let go of their targets, creating a strategy that counters the opponent's key cards. He also uses cards like "Summon Limit" and "Kaiser Colosseum" to limit the number of opponent's monsters, since his hounds specialize in fighting a single target.

Mutant Seed Deck
A Deck focused on the use of "Mutant Seed Tokens", special Tokens that can evolve into all kinds of different Plant monsters.

Camadian Deck
A Deck featuring Reptile monsters with an advanced coating technology that enhances their molting abilities.

By stacking Coating Counters on each monster, they gain extra layers of protection against opponent attacks and effects. Furthermore, with the "Coating Configuration" Spells, they gain deadly abilities that trigger each time they shed a layer, making an opponent's attack backfire.

Floral Deck (Designated)
(Final version featured in the YGO another decklists)

A Plant deck that grows stronger drawing cards.

Keiko's Floral cards are one-for-one cards that allow her to replenish her hand after playing them, meaning the number of cards in her hand doesn't decrease, and only increases each turn with the addition of her normal draw. Besides keeping her resources, this feat makes cards like "Floral Royal" and "Flower Field" grow stronger and stronger each turn.

Sparks Deck (Designated)
(Final version featured in the YGO another decklists)

Inspired by the classic "Sparks" card, this deck focuses on inflicting multiple instances of weak burn damage. These effects become powerful when combo'd with "Inferno Familiar", who can keep constantly destroying cards, and "Fire Cage", that protects the player's LP while the player keeps depleting the opponent's.

WATER Numbers Deck (Designated)
(Final version featured in the YGO another decklists)

A Deck featuring a number of Level 5 WATER Warrior monsters, it can use tuners to make Level 8 WATER Synchros or use the Level 5 monsters for Rank 5 WATER Xyz who can be Ranked-Up.

Legendary Spirit (Designated)
(Final version featured in the YGO another decklists)

A Deck with Spirit Summoner monsters who can summon forth the spirits of iconic monsters.

The Spirit monsters serve as hand traps that temporarily lend their power to the Spirit Summoner monsters - such as the high ATK of "Barbaros", the anti-Trap effect of "Jinzo", etc.

Generic ideas/concepts

 * A Deck that mixes Xyz and Ritual. The Ritual monsters have effects in the hand that help quickly Xyz Summoning, while the Xyz Monsters can Ritual Summon by tributing their Xyz Materials. EDIT: Could be a Dinosaur Deck. The Rituals could be regular dinosaurs, reflecting how Ritual is an archaic mechanic, while the modern Xyz could be more advanced dinosaurs, with robotic features or something similar (alternatively, could feature Dinosaur Rituals and Machine Xyz). They could have "Ancient" and "Transcedent" versions of a same dino, "Ancient" being the Ritual and "Transcedent" the Xyz. The Rituals in the hand may attach themselves to the Xyz or something, and the Xyz may Ritual Summon.
 * Another idea for the playing style to make it more original. Since Dinos usually have high ATKs, the Xyz could work with the ATKs of the materials attached to them (idea inspired by Ultimate Xyz). For example, one gains ATK equal to half the total ATKs of its Xyz Materials, etc.
 * An all-top-decking Deck which uses up the player's entire hand quickly, except all monsters are amazing Top Decks like "Goddess of Sweet Revenge" to completely turn the game around. The deck may be either composed solely of Top Deckings or be able to place those Top Deckings in the right place. Might be a nice deck for an entertainment-style duelist.
 * An enhanced version of The Shining's Deck from YGO another. A Deck that "knows all", with effects that let the user see both players' decks, hands and face-down cards, so he knows every card that will be played during the entire duel. EDIT: Interesting anime cards to feature: "Drawber", "Miracle Draw".
 * For a competitive player: An improved Herald Tethys Deck, with an upgraded Tethys and support cards. Possibly could be a monster mash Deck as well, including a Fairy monster that can Ritual Summon or something (if so, it could be interesting to put it against Eisuke in a later arc for a Monster Mash showdown).
 * A Vessel Deck where the Vessel monsters can take the spirits of other powerful monsters; they equip themselves with strong monsters from the Deck, and when they are destroyed, or after a condition is met, the equipped monster is Special Summoned, making it a Boss Rush Deck that can Special Summon powerful high-Level monsters with ease.
 * A Devouring Deck similar to Ted Banias' "Medicine Eater" concept; the player keeps Tribute Summoning single-Tribute monsters on top of each other, and the newly Summoned monster gains the previous monster(s)' effects, making them stronger and stronger as they pile up powerful effects. Possibly, they could keep the Tributed monsters beneath them and gain the effects of the monsters beneath themselves.
 * A non-stall Exodia Deck, like the Empowered Exodia Deck, in which the player actually battles to gather Exodia rather than stalling and drawing like most boring-to-face Exodia Decks.
 * An Xyz Substitute Deck, with the same concept as the classic Fusion Substitute monsters, except they can be used for the Xyz Summon of any monster (regardless of their Rank or other specific requirements), as long as the other material monster is correct. Could feature varied generic Xyz Monsters of all kinds of Ranks, and cards that gain advantage from constantly Xyz Summoning.
 * A Tribute Deck (could feature Rituals or Tribute Summons) featuring Ectoplasmer, Share the Pain and similar cards, forcing the opponent to Tribute their powerful monsters.
 * A Deck that manipulates stats following the concept of "Reverse Trap" and "The Walking Med".
 * EDIT: Could be merged with the "B.E.W." idea, to make a gimmicky Deck with monsters that cripple themselves, but the reverse effects make them stronger instead. This could be a Deck used by a Mechanic or Eletricist, possibly related to the Yosawa Siblings, themed after mechanical inverters.
 * A Deck that mixes Water fields with Thunder monsters to boost their elecricity, and similar concepts.
 * A Pot of Greed/Jar of Greed Deck, using all the support cards for them, but with limitation that don't let you do anything when you use them, except use the other cards of the theme, which benefit from drawing.
 * A Deck based on this attempt of a Deck, with combos of cards that bounce opponent's cards + cards that make them discard, getting rid of monsters without fighting them.
 * An Ojama variant where the players wants to fill the opponent's Monster and Spell/Trap Zones to trigger powerful cards like "Straight Flush" and "Flash of the Forbidden Spell". Includes "Ojama White".
 * A Deck inspired by "Spiriting-Away Onibimaru", where your monsters take the opponent's cards "hostages", and if your opponent destroys your monster before they give the hostages back, they lose the hostages.
 * Anime/manga Decks to possibly expand on:
 * GX: Maiden in Love Deck, Trapper's Hunting Deck, Darkness Deck.
 * 5D's: Yomi Deck.
 * Deck theme ideas (for name/design): Fractal, Bioluminescence, "A Fox of Seven Disguises" (七度狐, a Kyoto rakugo tale), a money Deck.

Boss Decks

 * A super broken Deck for a big boss that manipulates time. It contains lots of effects that manipulates Phases (for example, it could start on turn 1 doing nothing, then his effects force the opponent to end turn 2 doing nothing as well, and on turn 3 he can attack his opponent completely unguarded).
 * A Transformation Deck which turns monsters into other random monsters. The user could swarm a bunch of weak monsters, which turn into random powerful monsters from his Deck or Extra Deck with his effects. Likewise, he could also transform the opponent's boss monsters into weaker monsters.
 * UPDATE: A similar concept to the Fantasy Deck from YGO! another.
 * An undead deck with no particular skills while the monsters are on the field, but any monster the opponent defeats has its effect triggered and brings out another monster, in a gimmick similar to the Fire/Ice Hand combo (except the entire deck works like that).
 * UPDATE: A deck of vengeful ghosts, where each monster, when defeated, makes the card that defeated it suffer the same fate, while bringing another monster. It could be a sub-boss deck and feature Synchros. Bonus: Also, each monster, while in the GY, could boost the others' ATK by 100, so the more monsters are defeated, the more they boost the others' ATKs.
 * A Deck of "death" that makes it so that the opponent's cards that are sent to the GY once really are "dead" - in other words, they cannot use their effects, be returned or played again for the rest of the duel.
 * A mystic/superior Pendulum Deck that uses the same Scale in both Pendulum Zones (one activated Scale could automatically place another copy of itself on the other side). The monsters don't have Levels, and are Pendulum Summoned from the rift between the equal Scales. Since they don't have Levels, the Deck could use effects that punish monsters for their Levels/Ranks.
 * A Mirror Deck that deflects damage and destruction to the opponent. All monsters have Amazoness Swords Woman-like effects, and redirect effects as well.

Specific ideas for "Five"

 * A countdown deck that Summons a boss monster that represents a number each turn, from higher to lower, making a countdown. When it reaches the final one, it declares an automatic win condition. This could possibly the the final admin's deck.
 * The Kank Deck: A Deck composed of two "rows" of soldiers: a front row composed of beatsticks that fight on the field (similar to "Hammer Bounzer") and a backrow composed of hand traps that cover for the front row monsters (similar to "Gorz the Emissary of Darkness"). Could be composed of Beast-Warriors and include cards that make way for the soliders by always keeping at least one solider on the front row and one on the back row, replacing the defeated ones (as if they got each other's backs all the time).
 * In Phase 2, following the dream/hallucination theme: The first time this gimmick is shown, it may be tested in an employee of the woman's. In this case, is meant to be a pleasant experience (it's later used to cause terror instead). The guy duels against a hot chick who uses a BDSM Deck with the following gimmick: Main Deck S monsters damage both players, while Main Deck M monsters benefit from being damaged; B and D are Extra Deck. As a fun note, since the Deck is super fanservice-ish, it could feature both sexy male and female monsters, and the woman comments that she already imagined the test guy was bi (hence why it shows both).
 * Also in Phase 2, the boss could use a spider-themed Deck (like 9-legged spiders, or mutant spiders?), because that'd be my own fear.

YGO another Decks
Below is a list of finalized Decks used for Yu-Gi-Oh! another.


 * Finalized YGO another Decklists

Below is a list of Deck concepts that were created for Yu-Gi-Oh! another but didn't get a chance to appear in the story.


 * Grim Reapers
 * Mythology Billy Deck
 * Toraji and Ryuzo: Dual Decks with Dual-Type monsters used by siblings
 * Fantasy Deck
 * The Gachi Challenge match
 * Mu's Necrobanish Deck
 * Minamoto's C-HERO Deck
 * Oshiro's Eletroenforcer Deck
 * Shura's Sophia Deck
 * Daisuke's Saint Warriors/Akira's Titanium Deck
 * Murai's Dizzy Deck (Bonus)
 * Special: The Zodiacs