Core Deck Case

"Core Deck Cases" are special deck cases used in the Future Card Buddyfight anime, they are built using Photon Metal.

When a person finds and becomes Buddies with a monster (normally by finding a Buddy Rare card), they are given a Core Deck Case by a Buddy Police officer. Core Deck Cases allow the user to "Luminize" their decks, allowing them to have a Buddyfight at any time together with their monsters, as well as using their Buddy Monster's abilities (such as flying).

When activated, Core Deck Cases transform into "Core Gadgets" with different forms.

As explained by El Quixote, the Core Gadget takes the shape of an object that reflects a fighter's inner hopes and dreams, either taking the shape of a personal symbol of strength for that fighter, like the Sun Belt for Gao, reflecting his dreams and ambition of becoming the Sun Fighter, or the Dragon designed Lance for Noboru, reflecting his straightforward personality and ambitions to become a Dragon Knight, or they take the shape of an object reflecting a person's inner wants and needs such as Tasuku's Armor while as the Purgatory Knight to hide his true identity from others.

Core Deck Cases seem to know who their legitimate owners are, and if used by someone else they will keep the shape that represents their real owners. If a fighter has more than one Core Deck Case, they will all take the same form, even if they are Dark Cores.

Core Gadgets automatically draw cards for players when their crystal is touched, shuffle their hands, and summon the monsters in battle while an automatic voice guides the player during their respective turns. Most, if not all, Core Gadgets have the ability to levitate as well. Without any noticeable input, these Core Gadgets can remain at the fighter's side within hands' reach and can automatically track their movement to adjust accordingly, such as when flying in the air due to a Buddy Skill. These Core Gadgets can also levitate back towards a player's side such as when they're deliberately thrown away by them.

Players who do not possess their own Core Deck Case can use an all-purpose Core Gadget to luminize their decks when fighting against someone who does own a Core Deck Case.

When a Core Gadget uses Future Force, the crystal becomes red.

Starting from Future Card Buddyfight Triple D, many of the Core Deck Cases have gained a new design. They now resemble Neo Deck Cases.

In Future Card Buddyfight Ace, Core Deck Cases have been discontinued; instead, Buddyfighters luminize their Decks by using holographic tables called "V-Boards" where the game field is projected. Yet, now adult characters like Gao and Tasuku seem to still carry their old Core Deck cases around, as seen in adult Gao's design and some of cards with adult Tasuku.

Known Core Deck Cases

Owner	Gadget (Status)	Information
Any fighter without a Core Deck Case of their own	Multi-Purpose Core Gadget	This core gadget is used within establishments like Castle for those without a Core Gadget of their own to Luminize their cards.
Ageha Gokuraku	Winged Compact
Akaoni Konmae	Red Fundoshi	When it was first revealed, Jack and Tasuku laughed at its appearance, while the other people watching the match are stunned or disgusted by it.
Amenkuler XVII	Pyramid
Amigo Takata	Maraca
Aooni Konmae	Blue Fundoshi
Ban Enma	Motorcycle	When activating his Buddy Skill, Ban is capable of riding his Core Gadget similar to a hoverbike, allowing him to traverse large distances with ease. It comes equipped with a handlebar tow that allows him to pull other people while flying, similar to parasailing.
Brutal of the Martial Arts
Buddy Police	Hover Disc Parts	During the battle against Yamigedo, it was show that the members of the Buddy Police all possess the same core gadget. Takihara's core gadget was destroyed by Rouga after he destroyed a Buddy Police Barrier, but eventually replaced with a new one.
Captain Answer (Owner) Genma Todoroki (Temporarily)	Hand Gun	This gadget is capable of firing Luminized card "bullets" at opponents or to call monsters from the deck installed in it. It also allows the user to Transform into "Captain Answer" even outside a Buddyfight. Tasuku borrowed this Core Gadget from Neginoyama when he raided Disaster's base, but was returned after joining them. He didn't use it in his buddyfights with Disaster's members though. It briefly came into Genma's possession when Negonoyama lost it after his interaction with Kemura, allowing Genma to impersonate Captain Answer for his Buddyfight with Shido.
Castle Store Manager	Helmet
Carlos Matador	Lance
CHAOS Gao	Belt
Dai Kaido	Drum
Dash Kazakiri	Bracelet
Demon Inzaidi	Gem (Both Destroyed)	Inzaidi possesed two of these Core Gadgets, keeping the 2nd as a backup incase the first was destroyed. Both were destroyed after losing to Tsurugi Takihara and Captain Answer. They have a similar design to the Multi-Purpose Core Gadget.
Devil Destroy Bigmachine	Dumbbell
Totsuo Doai	Moai	Using his Buddy Skill, Doai is capable of riding the Moai statue as an improvised hoverbike, allowing him to achieve great speed to ram into other objects.
Gaito Kurouzu	Dragon
Gao Mikado	Sun Belt (Destroyed)	When drawing from it or making his Mighty Sun Fighter speech, it rotates sideways. It was destroyed after Gao suffered his first loss to Ikazuchi, and was replaced with a Neo Core Deck Case.
Gara	Star
Genma Todoroki	Arm band
First Knight of the Apocalypse, Gratos	Orb
Grimoire	Skull
Guru Bunbuku	Jug
The Hanako In The Toilet	Orb
Iron Claw Ikarino	Staff	This Core Gadget doesn't seem to include a crystal.
Ivan Shikakevich Wanaski	Snowmobile
J Genesis	Crystal
Sir James Knightman	Shield
Jin Magatsu	Shuriken Holster
Kakeru Futaboshi	Gem
Shusui Kanahebi	Tanto
Kanata Ozora	Ball	When the Core Gadget is summon, his outfit changes. He kicks it whenever he activates Crystal Spikes ability or when he uses his impacts. He kicks it upwards whenever he draws a card.
Kazane Fujimiya	Ball
Keisetsu of the Sword Arts	Skateboard
Kemura	Headband
Kenta Zakoyama	Cube
Kiri Hyoryu	Snowflake
Ku Teito	Wheel
Kurooni Konmae	Yellow Fundoshi
Long Daiakuji	Yin & Yang
Magoroku Shido (Owner) Heim (Temporarily)	Star	This was used by Shido for his beginning matches in the first season. When his ties with Disaster was revealed, he replaced it with his Dark Core Gadget. By Buddyfight 100, he returns to using it once more. It was used by Heim when he stole it from Shido after betraying Ikazuchi and escaping to Dragon World.
Masuka Raid	Rose
Mukuro Shigamine	Top (Destroyed)	Spins while in use.
Noboru Kodo	Lance	Noboru used this as an impromptu throwing weapon to reveal Tasuku as the Purgatory Knight.
Paruko Nanana	Microphone	Paruko uses this to give the play-by-play on the Buddyfights where she is the commentator, even using it during her own Buddyfights with other people.
Raremaro Tefudanokimi	Kusudama	When using his Buddy Skill, Raremaro holds onto the tassels to float away rather then levitate on his own.
Rouga Aragami	Spear	Rouga used this whenever he was in public while at Aibo Academy. After losing to Gao and transferring to Sengoku Academy, he replaced it permanently with his Dark Core Gadget.
Sakate	Gauntlet
Sayuri Gotsurugi	Hair Pin
Shosetsu Kirisame	Sword Sheath	Shosetsu keeps Durandal within the sheath and only draws it out whenever he equips it.
Shura Gokumon	Skull Pauldron
Sofia Sakharov	Jewel	Sophia can draw cards from it without needing to physically touch the crystal, instead she seems to draw cards telepathically
Suzuha Amanosuzu	Dessert Stand	Suzuha normally has Sebastian at her side during matches to hold her gadget. While under the control of a Hundred Demons, it is shown to float like most Core Gadgets.
Tasuku Ryuenji	Star Pulsar (Replaced)	It remained as Tasuku's Core Gadget for much of the 1st Season until he joined Disaster. While Tasuku was with Disaster, it fell into Kiri's hands after raiding Disaster's base to free the captive Buddy Monsters, which he then gave to Gao. It was returned to Tasuku's possession after he left Disaster. In Buddyfight 100, it was damaged after his fight with Ikazuchi, and was replaced with a Neo Deck Case. Interestingly enough, this is the only Core Gadget to be called by an actual name and the only non-Neo Deck Case to have a red crystal.
Tenka Gotsurugi	Pocket
Terumi Kuchinawa	Wand	It looks nearly identical to the one she previously owned when she was a member of Disaster, save for the gem.
Tetsuya Kurodake	Headphones
Togari Togeyama	Shoulder Pad
Unknown Criminal	Hammer (Destroyed)	It was destroyed after the criminal was defeated by Tasuku.
Wataru Kageo	Top Hat
WBC Japan Cup Participant	Sword
WBC Japan Cup Participant	Football
WBC Japan Cup Participant	Belt
WBC Japan Cup Participant
WBC Japan Cup Participant
WBC Japan Cup Participant	Gem
WBC Japan Cup Participant	Diamond
WBC Japan Cup Participant	Bracelet
WBC Japan Cup Participant	Bracelet
WBC Japan Cup Participant	Platform
Wisdom	Eyes	This core gadget is the only one to not have a crystal when transformed. Instead, it creates cards from the electricity in its eyes whenever Wisdom draws a card.
Zanya Kisaragi	Wakizashi	Zanya is shown drawing the blade whenever he activates his Secret Sword Impacts.

Dark Core Deck Case

A "Dark Core Deck Case" gives its owner the ability to use Disaster Force. The user can become more malevolent and power-hungry if they can't control the Dark Core's powers. Anyone who comes into contact with a Dark Core becomes negative, sinister and darker under its influence. They can also be used to possess others, as seen with Doai. It has also been shown to occasionally surprise the user and activate Disaster Force without their permission.

All known Dark Cores so far are black colored when inactive and have an eye-like figure over the crystal. When luminizing using Dark Core Deck Case, the luminize is called "Dark Luminize"

According to Kyoya, they are developed by his financial group after Disaster Force was "accidentally discovered". An additional side effect of using Disaster Force is that it fuels a portal to Darkness Dragon World, allowing monsters from it to invade Earth.

A deck case themed after the Dark Core was released.

Owner	Gadget	Information
Bolt Fuchigami	Mini Yamigedo "Spirit Form"	This is the only Dark Core Gadget to seemingly not to have been made by Kyoya Gaen. Considered a Dark Core Deck Case because it can "Dark Luminize" cards.
Davide Yamazaki	Pendant	It attaches to the side of his choker
Elf Kabala	Compact	Kabala has added a feature to his Core Gadget that allows him to use it in a similar fashion to a remote control to manipulate all of the monsters that Disaster had captured so far.
Gremlin	Pauldron
Kiri Hyoryu	Snowflake (Destroyed)	It was destroyed after Kiri lost to Gao within Disaster's HQ.
Kyoya Gaen	Wings
Magoroku Shido	Star (Replaced)	In Buddyfight 100, Shido has returned to using his standard Core Gadget.
Rouga Aragami	Spear
Shosetsu Kirisame	Sword Sheath (Destroyed)	After Shosetsu lost control of the Disaster Force and went on a rampage, it was quickly destroyed by the efforts of Tasuku.
Sofia Sakharov	Jewel	In Buddyfight 100, Sofia use a Normal Core Gadget.
Tasuku Ryuenji (Disguised as the Purgatory Knight) Purgatory Knight (Copy made by Armordeity, Dynamis)	Armor (Destroyed)	Kyoya Gaen rigged this gadget so that cards Luminized from it cannot affect Darkness Dragon World monsters. It was destroyed after Tasuku released the Future Force to defend Jack from Sofia's spell. A sentient copy of the gadget was created by Armordeity, Dynamis to test Tasuku and Jack, to see if they were worthy of utilising Star Dragon World. It is unknown if this copy was also a Dark Core Gadget.
Terumi Kuchinawa (Previous Owner)	Wand (Repossessed)	It was taken by Sofia after she erased Terumi's memories.
Great Fiend, Yamigedo	Ikazuchi Form

Neo Deck Case

Gao Neo Core Deck Case — Neo Core Deck Case

Nothing much is known about them other than the fact that it is quite new and so far only Buddy Police Officers have them.

One characteristic that differentiates them from standard Deck Core Cases is that the crystal is colored red, similar in appearance to when the standard Cases utilises the Future Force.

According to Jack and Tasuku, this model of the Deck Core is implied to be able to withstand Yamigedo's power and not malfunction or be destroyed.

Owner	Gadget	Information
Gao Mikado	Sun Belt
Tasuku Ryuenji	Neo Star Pulsar	Sixth Omni Storm Lord, Variable Cord had stolen Tasuku's Neo Deck Case but was eventually recovered.
Bal's Future Buddy	Sun Belt

Omni Lord Emblems

Other than having the same uses as other Core Gadgets, these Emblems (in the shape of an orb) are another way to recognise a being as one of the 8 current Omni Lords (Other than the amount of "horns" they may have).

When a current Omni Lord has reached the end of their life or seeks to retire, they may pass it down to another monster, an example being a disciple of theirs, allowing the new wielder to become the Omni Lord related to that Emblem.

It would seem that these orbs have a unique method of activation as despite being granted Tenbu's Emblem, Drum was unable to utilise it at first.

In H Episode 32, Count Dawn noted that the Emblems cannot be wielded by monsters of other worlds besides the world the Emblem's Omni Lord belongs to. This was the reason Mukuro Shigamine can never become its master even if he took possession of one from an Omni Lord.

Owner	Gadget (Status)	Information
First Omni Beast Lord, Ziun	Green Orb	"Beast" Kanji
Second Omni Demon Lord, Asmodai	Turquoise Orb	"Demon" Kanji
Third Omni Water Lord, Miserea	Brown Orb	Unlike the other emblems, the orb does not match world's colour (white) Turns into a snowflake when luminized "Water" Kanji
Fourth Omni Fire Lord, Burn Nova	Grey Orb	Given to be held by Ricky "Flame" Kanji
Fifth Omni Dragon Lord, Tenbu (Current Owner) Drum Bunker Dragon (Previous Owner)	Red Orb	Passed down to Drum before Tenbu was devoured by Yamigedo. Later returned to Tenbu after Yamigedo was defeated. " Dragon" Kanji
Sixth Omni Storm Lord, Variable Cord	Blue Orb	"Storm" Kanji
Seventh Omni Earth Lord, Count Dawn	Yellow Orb	It can transform into a parasol to protect Dawn from the Sun's rays during the daytime. "Earth" Kanji
Eighth Omni Deity Lord, Grangadez	Orange/Saffron Orb	Attached to his Chest "God" Kanji
Ninth Omni Brave Lord, Captain Answer (Previous Owner) Ninth Omni Brave Lord, Mukuro (Current Owner)	Bluish/Purple Orb	Inside his body "Brave" Kanji