D/D Ghost

Fiend/Tuner/Effect

If this card is sent to the Graveyard: You can target 1 "D/D" monster or "Dark Contract" card in your Graveyard, except "D/D Ghost"; send 1 card from your Deck to the Graveyard with that name. If this card is banished: You can target 1 of your banished "D/D" monsters or "Dark Contract" cards, except "D/D Ghost"; return it to the Graveyard.

D/D Lamia

Fiend/Tuner/Effect

If this card is in your hand or Graveyard: You can send 1 "D/D" or "Dark Contract" card from your hand or face-up from your field to the Graveyard, except "D/D Lamia"; Special Summon this card, but banish it when it leaves the field. You can only use this effect of "D/D Lamia" once per turn.

D/D Berfomet

Fiend/Effect

Once per turn: You can target 1 "D/D" monster you control that has a Level, except "D/D Berfomet", and declare a Level from 1 to 8; it becomes that Level until the end of this turn, also you cannot Special Summon monsters for the rest of this turn, except "D/D" monsters.

D/D Lilith

Fiend/Effect

If this card is Normal or Special Summoned: You can activate 1 of these effects. You can only use this effect of "D/D Lilith" once per turn.
- Target 1 "D/D" monster in your Graveyard; add it to your hand.
- Add 1 face-up "D/D" Pendulum Monster from your Extra Deck to your hand.

D/D Necro Slime

Fiend/Effect

If this card is in your Graveyard: You can Fusion Summon 1 "D/D/D" Fusion Monster from your Extra Deck, by banishing Fusion Materials listed on it from your Graveyard, including this card. You can only use this effect of "D/D Necro Slime" once per turn.

D/D Nighthowl

Fiend/Tuner/Effect

When this card is Normal Summoned: You can target 1 "D/D" monster in your Graveyard; Special Summon it, also you cannot Special Summon monsters for the rest of this turn, except Fiend-Type monsters. That monster's ATK and DEF become 0. If it is destroyed, you take 1000 damage.

D/D Pandora

Fiend/Effect

When this card is destroyed by battle and sent to the Graveyard, or when this card in your possession is destroyed by an opponent's card effect and sent to your Graveyard, and you control no cards: You can draw 2 cards.

D/D Swirl Slime

Fiend/Effect

If this card is in your hand: You can Fusion Summon 1 "D/D/D" Fusion Monster from your Extra Deck, using monsters from your hand as Fusion Materials, including this card. You can banish this card from your Graveyard; Special Summon 1 "D/D" monster from your hand. You can only use each effect of "D/D Swirl Slime" once per turn.

Stygian Security

Fiend/Tuner

When this card is destroyed by battle and sent to the Graveyard, Special Summon 1 Level 1 Fiend-Type monster from your Deck.

D/D Cerberus

Fiend/Pendulum/Effect

Pendulum Effect: Once per turn: You can target 1 "D/D" monster you control; change its Level to 4, and if you do, it gains 400 ATK and DEF (even if this card leaves the field).
Monster Effect: When this card is Pendulum Summoned from the hand, while you control a "D/D" monster other than "D/D Cerberus": You can target 1 Continuous Spell Card in your Graveyard; add it to your hand.

D/D Proud Chevalier

Fiend/Pendulum/Effect

Pendulum Effect: Once per turn: You can pay 500 LP, then target 1 face-up monster your opponent controls; it loses 500 ATK (even if this card leaves the field). Unless you have a "D/D" card in your other Pendulum Zone, this card's Pendulum Scale becomes 5.
Monster Effect: When this card is Normal Summoned: You can add 1 face-up DARK Pendulum Monster from your Extra Deck to your hand.

D/D Proud Ogre

Fiend/Pendulum/Effect

Pendulum Effect: Once per turn: You can pay 500 LP, then target 1 "D/D" monster you control; it gains 500 ATK (even if this card leaves the field). Unless you have a "D/D" card in your other Pendulum Zone, this card's Pendulum Scale becomes 5.
Monster Effect: When this card is Normal Summoned: You can Special Summon 1 face-up DARK Pendulum Monster from your Extra Deck, but it has its effects negated, also you cannot Special Summon monsters for the rest of this turn, except "D/D" monsters.

D/D Savant Galilei

Fiend/Pendulum/Effect

Pendulum Effect: You cannot Pendulum Summon monsters, except "D/D" monsters. This effect cannot be negated. Once per turn, during your Standby Phase: Increase this card's Pendulum Scale by 2 (max. 10), then destroy all monsters you control with a Level less than or equal to this card's Pendulum Scale, except "D/D" monsters.
Monster Effect: During either player's turn: You can discard this card, then target 1 "D/D" or "Dark Contract" card you control; return it to the hand. You can only use this effect of "D/D Savant Galilei" once per turn.

D/D Savant Kepler

Fiend/Pendulum/Effect

Pendulum Effect: You cannot Pendulum Summon monsters, except "D/D" monsters. This effect cannot be negated. Once per turn, during your Standby Phase: Reduce this card's Pendulum Scale by 2 (min. 1), then destroy all monsters you control with a Level greater than or equal to this card's Pendulum Scale, except "D/D" monsters.
Monster Effect: If this card is Normal or Special Summoned: You can activate 1 of these effects. You can only use this effect of "D/D Savant Kepler" once per turn.
- Target 1 other "D/D" card you control; return it to the hand.
- Add 1 "Dark Contract" card from your Deck to your hand.

D/D Savant Nikola

Fiend/Pendulum/Effect

Pendulum Effect : You cannot Pendulum Summon monsters, except "D/D" monsters. This effect cannot be negated. Once per turn: You can discard 1 "D/D/D" monster, then target 1 Level 6 or lower "D/D" monster you control; it gains 2000 ATK and DEF until the end of this turn (even if this card leaves the field).
Monster Effect : If this card in the Pendulum Zone is destroyed: You can target 1 "D/D/D" monster you control; return it to the hand, and if you do, place up to 2 face-up "D/D" Pendulum Monsters from your Extra Deck in your Pendulum Zones, but they cannot activate their Pendulum Effects this turn. You can only use this effect of "D/D Savant Nikola" once per turn.

D/D Savant Thomas

Fiend/Pendulum/Effect

Pendulum Effect : During your Main Phase: You can add 1 face-up "D/D" Pendulum Monster from your Extra Deck to your hand. You can only use this effect of "D/D Savant Thomas" once per turn.
Monster Effect : You can target 1 "D/D" card in your Pendulum Zone; destroy that card, and if you do, Special Summon 1 Level 8 "D/D/D" monster from your Deck in Defense Position, but for the rest of this turn, its effects (if any) are negated, and any battle damage your opponent takes becomes halved. You can only use this effect of "D/D Savant Thomas" once per turn.

D/D/D Chaos King Apocalypse

Fiend/Pendulum/Effect

Pendulum Effect: You can banish 2 "D/D" monsters from your Graveyard; Special Summon this card from your Pendulum Zone.
Monster Effect: During your opponent's turn, if this card is in your hand or Graveyard: You can target 2 face-up Spell/Trap Cards you control; you cannot Special Summon monsters for the rest of this turn, except Fiend-Type monsters, also destroy the targeted cards, and if you do, Special Summon this card (this is a Quick Effect). You can only use this effect of "D/D/D Chaos King Apocalypse" once per turn.

D/D/D Doom King Armageddon

Fiend/Pendulum/Effect

Pendulum Effect: Once per turn: You can target 1 "D/D" monster you control; it gains 800 ATK until the end of this turn (even if this card leaves the field).
Monster Effect: Once per turn, if a monster(s) you control is destroyed by battle or by card effect: You can target 1 of those monsters; this card gains ATK equal to that monster's original ATK until the end of this turn. This card cannot attack your opponent directly during the turn this effect is activated. Cannot be destroyed by Spell/Trap effects that do not target this card.

D/D/D Rebel King Leonidas

Fiend/Pendulum/Effect

Pendulum Effect : When you take effect damage (except during the Damage Step): You can destroy this card, and if you do, any effect that would inflict damage to a player this turn increases their LP by the same amount, instead.
Monster Effect : When you take effect damage (except during the Damage Step): You can Special Summon this card from your hand, and if you do, gain LP equal to the damage you took. You take no effect damage.

D/D/D Oblivion King Abyss Ragnarok

Fiend/Pendulum/Effect

Pendulum Effect : If you Special Summon a "D/D" monster(s), except during the Damage Step: You can target 1 "D/D" monster in your Graveyard; any battle damage your opponent takes becomes halved for the rest of this turn, also Special Summon that monster, and if you do, take 1000 damage. You can only use this effect of "D/D/D Oblivion King Abyss Ragnarok" once per turn.
Monster Effect : If this card is Normal or Special Summoned: You can target 1 "D/D/D" monster in your Graveyard; Special Summon it. You can only use this effect of "D/D/D Oblivion King Abyss Ragnarok" once per turn. Once per turn: You can Tribute 1 other "D/D" monster, then target 1 monster your opponent controls; banish it.

Allure of Darkness

Draw 2 cards, then banish 1 DARK monster from your hand, or, if you do not have any in your hand, send your entire hand to the GY.

Dark Contract with the Gate

During your Main Phase: You can add 1 "D/D" monster from your Deck to your hand. You can only use this effect of "Dark Contract with the Gate" once per turn. Once per turn, during your Standby Phase: Take 1000 damage.

Dark Contract with the Swamp King

During your Main Phase: You can Fusion Summon 1 Fiend-Type Fusion Monster from your Extra Deck, using monsters from your hand or your side of the field as Fusion Materials. You can only use this effect of "Dark Contract with the Swamp King" once per turn. If Summoning a "D/D" Fusion Monster this way, you can also banish monsters from your Graveyard as Fusion Material. Once per turn, during your Standby Phase: Take 1000 damage.

Dark Eruption

Target 1 DARK monster with 1500 or less ATK in your Graveyard; add that target to your hand.

Monster Reborn

Special Summon 1 monster from either player's Graveyard to your side of the field.

Polymerization

Fusion Summon 1 Fusion Monster from your Extra Deck, using monsters from your hand or your side of the field as Fusion Materials.

Bottomless Trap Hole

When your opponent Summons a monster(s) with 1500 or more ATK: Destroy that monster(s) with 1500 or more ATK, and if you do, banish it instead of sending it to the Graveyard.

Contract Laundering

Destroy as many "Dark Contract" cards in your Spell & Trap Zone as possible, and if you do, draw the same number of cards you destroyed, then gain 1000 LP for each card you drew with this effect.

D/D/D Human Resources

Shuffle 3 cards into the Deck (any combination of "D/D" monsters in your hand, field, or Graveyard, and/or "D/D" cards in your Pendulum Zone), then you can add 2 "D/D" monsters from your Deck to your hand.

Dark Bribe

When an opponent's Spell/Trap Card is activated: Your opponent draws 1 card, also negate the Spell/Trap activation, and if you do, destroy it.

Dark Contract with the Witch

You can send 1 "D/D" or "Dark Contract" card from your hand to the Graveyard, then target 1 card on the field; destroy it. You can only use this effect of "Dark Contract with the Witch" once per turn. All Fiend-Type monsters you control gain 1000 ATK during your opponent's turn only. Once per turn, during your Standby Phase: Take 1000 damage.

Fiendish Chain

Activate this card by targeting 1 Effect Monster on the field; negate the effects of that face-up monster while it is on the field, also that face-up monster cannot attack. When it is destroyed, destroy this card.

Localized Tornado

Return all cards from your hand and Graveyard to the Deck(s).

Mirror Force

When an opponent's monster declares an attack: Destroy all Attack Position monsters your opponent controls.

Sinister Yorishiro

Each turn, 1 Level 5 or higher Fiend monster you Normal Summon can be Summoned without Tributing. If exactly 1 Normal Summoned/Set Level 5 or higher Fiend monster (and no other cards) would be destroyed, you can send this card to the GY instead.

Cross-Sheep

/Link/Effect

2 monsters with different names
If a monster is Special Summoned to a zone this card points to: You can apply the following effects, in sequence, based on the card types of the monster(s) this card points to.
• Ritual: Draw 2 cards, then discard 2 cards.
• Fusion: Special Summon 1 Level 4 or lower monster from your GY.
• Synchro: All monsters you control gain 700 ATK.
• Xyz: All monsters your opponent controls lose 700 ATK.
You can only use this effect of "Cross-Sheep" once per turn.

Crystron Halqifibrax

Machine/Link/Effect

2 monsters, including a Tuner
If this card is Link Summoned: You can Special Summon 1 Level 3 or lower Tuner from your hand or Deck in Defense Position, but it cannot activate its effects this turn. During your opponent's Main Phase or Battle Phase (Quick Effect): You can banish this card you control; Special Summon 1 Tuner Synchro Monster from your Extra Deck. (This is treated as a Synchro Summon.) You can only use each effect of "Crystron Halqifibrax" once per turn.

D/D/D Abyss King Gilgamesh

Fiend/Link/Effect

2 "D/D" monsters
If this card is Special Summoned: You can activate this effect; you cannot Special Summon monsters for the rest of this turn, except "D/D" monsters, also place 2 "D/D" Pendulum Monsters with different names from your Deck in your Pendulum Zones, and if you do, take 1000 damage. If this Link Summoned card is destroyed by battle with an opponent's attacking monster, or by an opponent's card effect while in its owner's Monster Zone: You can Special Summon 1 "D/D" monster from your Extra Deck or GY in Defense Position. You can only use each effect of "D/D/D Abyss King Gilgamesh" once per turn.

Union Carrier

Machine/Link/Effect

2 monsters with the same Type or Attribute
Cannot be used as Link Material the turn it is Link Summoned. You can target 1 face-up monster you control; equip 1 monster to it from your hand or Deck with its same original Type or Attribute. The equipped monster gains 1000 ATK. If you equipped it from the Deck, you cannot Special Summon monsters with that Equip Card's name for the rest of this turn. You can only use this effect of "Union Carrier" once per turn.

D/D/D Flame High King Genghis

Fiend/Fusion/Effect

If another "D/D" monster(s) is Normal or Special Summoned to your field, while you control this face-up card (except during the Damage Step): You can target 1 "D/D" monster in your Graveyard; Special Summon it. You can only use this effect of "D/D/D Flame High King Executive Genghis" once per turn. Once per turn, during your turn, when a Spell/Trap Card or effect is activated: You can negate the activation (this is a Quick Effect).

D/D/D Flame King Genghis

Fiend/Fusion/Effect

2 "D/D" monsters
If another "D/D" monster(s) is Special Summoned to your field, while you control this face-up card (except during the Damage Step): You can target 1 "D/D" monster in your Graveyard; Special Summon it. You can only use this effect of "D/D/D Flame King Genghis" once per turn. If this card is destroyed by battle, or if this card in its owner's possession is destroyed by an opponent's card effect: You can target 1 "Dark Contract" card in your Graveyard; add it to your hand.

D/D/D Oracle King d'Arc

Fiend/Fusion/ Effect

2 "D/D" monsters
Any effect that would inflict damage to you makes you gain that much LP, instead.

D/D/D Super Doom King Purple Armageddon

Fiend/Fusion/Pendulum/Effect

Pendulum Effect :Once per turn, if your "D/D/D" Fusion Monster battles an opponent's monster, before damage calculation: You can make that opponent's monster lose 1000 ATK until the end of this turn (even if this card leaves the field).
Monster Effect : 2 "D/D/D" monsters
You can target 1 Attack Position monster your opponent controls; destroy it, and if you do, inflict damage to your opponent equal to half the destroyed monster's original ATK. You can only use this effect of "D/D/D Super Doom King Purplish Armageddon" once per turn. If an opponent's monster battles, before damage calculation: You can make the ATK of that opponent's monster become equal to its original ATK until the end of the Damage Step. If this card in the Monster Zone is destroyed: You can place this card in your Pendulum Zone.

Crystal Wing Synchro Dragon

Dragon/Synchro/Effect

1 Tuner + 1+ non-Tuner Synchro Monsters
Once per turn, when another monster's effect is activated (Quick Effect): You can negate the activation, and if you do, destroy that monster, and if you do that, this card gains ATK equal to the destroyed monster's original ATK until the end of this turn. If this card battles a Level 5 or higher monster your opponent controls, during damage calculation: This card gains ATK equal to the current ATK of the opponent's monster it is battling during that damage calculation only.

D/D/D Gust High King Alexander

Fiend/Synchro/Effect

1 Tuner + 1+ non-Tuner monsters
If 3 or more "D/D/D" monsters are on the field, this card gains 3000 ATK. If another "D/D" monster(s) is Normal or Special Summoned to your field while this monster is on the field (except during the Damage Step): You can target 1 "D/D" monster in your GY; Special Summon it. You can only use this effect of "D/D/D Gust High King Alexander" once per turn.

D/D/D Gust King Alexander

Fiend/Synchro/Effect

1 "D/D" Tuner + 1 or more non-Tuner monsters
If another "D/D" monster(s) is Normal or Special Summoned to your field, while you control this face-up card (except during the Damage Step): You can target 1 Level 4 or lower "D/D" monster in your Graveyard; Special Summon it. You can only use this effect of "D/D/D Gust King Alexander" once per turn.

D/D/D Super Doom King Bright Armageddon

Fiend/Synchro/Pendulum/Effect

Pendulum Effect : Once per turn, when an opponent's monster declares an attack: You can target 1 "D/D/D" Synchro Monster you control; destroy as many monsters your opponent controls as possible with DEF less than or equal to the targeted monster's ATK, and if you do, inflict 1000 damage to your opponent for each monster destroyed. Monster Effect : 1 "D/D" Tuner + 1+ non-Tuner "D/D/D" monsters
Your opponent cannot target monsters you control with card effects. If another monster is Normal or Special Summoned while this monster is on the field (except during the Damage Step): You can make your opponent choose 1 Pendulum Monster they control, and all other monsters they currently control have their effects negated. If this card in the Monster Zone is destroyed: You can place this card in your Pendulum Zone.

Formula Synchron

Machine/Synchro/Tuner/Effect

1 Tuner + 1 non-Tuner monster
When this card is Synchro Summoned: You can draw 1 card. During your opponent's Main Phase, you can: Immediately after this effect resolves, Synchro Summon using this card you control (this is a Quick Effect).

Satellite Warrior

Warrior/Synchro/Effect

1 Tuner + 1+ non-Tuner Synchro Monsters
If this card is Synchro Summoned: You can target cards your opponent controls, up to the number of Synchro Monsters in your GY; destroy them, and if you do, this card gains 1000 ATK for each card destroyed. If this Synchro Summoned card is destroyed: You can Special Summon up to 3 Level 8 or lower "Warrior", "Synchron", and/or "Stardust" Synchro Monsters with different names from your GY. You can only use each effect of "Satellite Warrior" once per turn.

D/D/D Duo-Dawn King Kali Yuga

Fiend/Xyz/Effect

2 Level 8 "D/D" monsters
After this card is Xyz Summoned, for the rest of this turn, other cards and their effects cannot be activated on the field, and other cards' effects on the field are negated. Once per turn, during either player's turn: You can detach 1 Xyz Material from this card; destroy all Spell and Trap Cards on the field. You can detach 1 Xyz Material from this card, then target 1 "Dark Contract" Spell/Trap Card in your Graveyard; Set that target.

D/D/D Super Doom King Dark Armageddon

Fiend/Xyz/Pendulum/Effect

Pendulum Effect : Once per turn, if you have a "D/D" card in your other Pendulum Zone: You can Special Summon 1 "D/D/D" Xyz Monster from your Extra Deck, except "D/D/D Super Doom King Dark Armageddon". Monster Effect : 2 Level 8 "D/D/D" monsters
Cannot be Pendulum Summoned. When this card is Xyz Summoned: You can attach 1 face-up "D/D" Pendulum Monster from your Extra Deck to this card as material. Pendulum Monsters you control cannot be destroyed by card effects. Once per turn: You can detach 1 material from this card, then target monsters your opponent controls, equal to the number of Pendulum Monsters you control; destroy them. If this card in the Monster Zone is destroyed: You can place this card in your Pendulum Zone.

D/D/D Wave High King Caesar

Fiend/Xyz/Effect

2 Level 6 Fiend monsters
When a Spell/Trap Card, or monster effect, is activated that includes an effect that Special Summons a monster (Quick Effect): You can detach 1 material from this card; negate the activation, and if you do, destroy that card, then you can make 1 other "D/D" monster you control and this card gain 1800 ATK until the end of this turn. If this card is sent from the field to the GY: You can add 1 "Dark Contract" card from your Deck to your hand.

D/D/D Wave King Caesar

Fiend/Xyz/Effect

2 Level 4 Fiend-Type monsters
During either player's turn: You can detach 1 Xyz Material from this card; at the end of the Battle Phase, Special Summon from your Graveyard as many monsters destroyed this turn as possible, but during the next Standby Phase, take 1000 damage for each monster Special Summoned by this effect. If this card is sent from the field to the Graveyard: You can add 1 "Dark Contract" card from your Deck to your hand. You can only use each effect of "D/D/D Wave King Caesar" once per turn.