D/D Savant Copernicus

Fiend/Pendulum/Effect

Pendulum Effect: You cannot Pendulum Summon monsters, except "D/D" monsters. This effect cannot be negated. Once, while this card is in your Pendulum Zone, you can negate an activated Spell effect that would inflict damage to you, then destroy this card.
Monster Effect: If this card is Normal or Special Summoned: You can send 1 "D/D" or "Dark Contract" card from your Deck to the Graveyard, except "D/D Savant Copernicus". You can only use this effect of "D/D Savant Copernicus" once per turn.

D/D Ark

Fiend/Pendulum/Effect

Pendulum Effect:
You can target 1 Pendulum Summoned monster your opponent controls; destroy both that monster and this card. You can only use this effect of "D/D Ark" once per turn.
Monster Effect:
If this card is destroyed by card effect: You can Special Summon 1 face-up "D/D" Pendulum Monster from your Extra Deck, except "D/D Ark", but its effects are negated. You can only use this effect of "D/D Ark" once per turn.

D/D Gryphon

Fiend/Pendulum/Effect

Pendulum Effect
You can target 1 Fiend monster you control; it gains 500 ATK (until the end of this turn) for each "Dark Contract" Spell/Trap with different names currently on your field or in your GY, then destroy this card. You can only use this effect of "D/D Gryphon" once per turn.
Monster Effect
If you control a "D/D" monster: You can Special Summon this card from your hand in Defense Position. If this card is Pendulum Summoned: You can discard 1 "D/D" or "Dark Contract" card; draw 1 card. If this card is Special Summoned from the GY: You can add 1 "D/D" card from your Deck to your hand, except "D/D Gryphon". You can only use each effect of "D/D Gryphon" once per turn.

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/D Destiny King Zero Laplace

Fiend/Pendulum/Effect

Pendulum Effect : During your Main Phase: You can add 1 face-up "D/D/D" Pendulum Monster from your Extra Deck to your hand, except "D/D/D Destiny King Zero Laplace". You can only use this effect of "D/D/D Destiny King Zero Laplace" once per turn.
Monster Effect : You can Special Summon this card (from your hand) by Tributing 1 "D/D/D" monster. Before damage calculation, if this card battles an opponent's monster: You can activate this effect; this card's ATK becomes double that opponent's monster's original ATK until the end of the Damage Step. If this card attacks a Defense Position monster, inflict piercing battle damage. The first time this card would be destroyed by battle each turn, it is not destroyed, also you take no battle damage from that battle.

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 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.

D/D Orthros

Fiend/Pendulum/Tuner/Effect

Pendulum Effect: Once per turn: You can target 1 Spell/Trap Card on the field and 1 other "D/D" or "Dark Contract" card you control; destroy them.
Monster Effect: When you take battle or effect damage: You can Special Summon this card from your hand. If this card is Special Summoned to your field, you cannot Special Summon monsters for the rest of this turn, except Fiend-Type monsters.

D/D Dog

Fiend/Pendulum/Effect

Pendulum Effect:
You can target 1 Fusion, Synchro, or Xyz Monster your opponent controls; negate its effects until the end of this turn, then destroy this card. You can only use this effect of "D/D Dog" once per turn.
Monster Effect:
Once per turn, if your opponent Special Summons a Fusion, Synchro, or Xyz Monster(s) (except during the Damage Step): You can target 1 of those monsters; this turn, that face-up monster cannot attack, also its effects are negated.

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 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 Supersight King Zero Maxwell

Fiend/Pendulum/Effect

Before damage calculation, if this card attacked an opponent's Defense Position monster: You can change the DEF of the opponent's monster to 0 until the end of the Damage Step. If this card attacks a Defense Position monster, inflict piercing battle damage to your opponent. You take no battle damage from attacks involving this card.

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 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 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 Evil

Fiend/Pendulum/Effect

Pendulum Effect:
Once, while this card is in your Pendulum Zone, when your opponent Pendulum Summons a monster(s) (except during the Damage Step): You can activate this effect; this turn, that Pendulum Summoned monster cannot attack, also its effects are negated.
Monster Effect:
Cannot attack unless you control another "D/D" monster. During your opponent's Main Phase (Quick Effect): You can target 1 face-up Pendulum Summoned monster your opponent controls; negate that face-up monster's effects until the end of this turn. You can only use this effect of "D/D Evil" once per turn.

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 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 Newton

Fiend/Pendulum/Effect

Pendulum Effect: You cannot Pendulum Summon monsters, except "D/D" monsters. This effect cannot be negated. Once, while this card is in your Pendulum Zone, you can negate an activated Trap effect that would inflict damage to you, then destroy this card.
Monster Effect: You can discard this card, then target 1 "D/D" or "Dark Contract" card in your Graveyard, except "D/D Savant Newton"; add it to your hand. You can only use this effect of "D/D Savant Newton" once per turn.

D/D Vice Typhon

Fiend/Effect

When this card is Normal Summoned: You can Tribute 1 "D/D" monster; Special Summon 1 Level 7 "D/D/D" monster from your Deck. During your Main Phase, if this card is in the GY because it was sent there this turn: You can Fusion Summon 1 Level 8 or higher "D/D/D" Fusion Monster from your Extra Deck, by banishing Fusion Materials listed on it from your GY, including this card. You can only use each effect of "D/D Vice Typhon" once per turn.

D/D/D Supreme King Kaiser

Fiend/Effect

If this card is Pendulum Summoned: All face-up cards your opponent currently controls have their effects negated, until the end of this turn. Once per turn, during your Main Phase, if this card was Pendulum Summoned this turn: You can target up to 2 cards in your Spell & Trap Zones; destroy them, and if you do, for each card destroyed, this card gains 1 additional attack during each Battle Phase this turn.

D/D/D Dragon King Pendragon

Fiend/Effect

If this card is in your hand: You can Tribute 1 Dragon-Type monster and 1 other Fiend-Type monster from your hand and/or your side of the field; Special Summon this card. Once per turn: You can discard 1 card; this card gains 500 ATK, then you can destroy 1 Spell/Trap Card on the field. This ATK increase lasts until the end of this 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 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 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 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.

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 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 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.

Dark Contract with the Entities

When a "D/D/D" monster of the below card type is Special Summoned from the Extra Deck to your field: You can activate the appropriate effect once per turn;
• Fusion: Gain 1000 LP.
• Synchro: Your opponent cannot target that Special Summoned monster with card effects.
• Xyz: Banish 1 card from the field or the Graveyard.
• Pendulum: Draw 1 card, then discard 1 card.
Once per turn, during your Standby Phase: Take 2000 damage.

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.

Piri Reis Map

At the start of your Main Phase 1: Add 1 monster with 0 ATK from your Deck to your hand, but halve your LP. After adding it to your hand, until the end of the next turn after this card was activated, you cannot activate the added monster's effects, or the effects of cards with its name, until you Normal Summon that monster or a card with its name.

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 Contract with the Yamimakai

Once per turn, during your Standby Phase: Take 1000 damage.
You can only use 1 of the following effects of "Dark Contract with the Yamimakai" per turn, and only once that turn.
- During your Main Phase: You can target 1 "D/D" Pendulum Monster in your Graveyard; place it in your Pendulum Zone.
- During your Main Phase: You can place 1 face-up "D/D" Pendulum Monster from your Extra Deck in your Pendulum Zone.

Forbidden Dark Contract with the Swamp King

Once per turn: You can Special Summon 1 "D/D/D" monster from your hand in Defense Position, but its effects are negated. Once per turn: You can Fusion Summon 1 Fiend-Type Fusion Monster from your Extra Deck, using monsters from your hand or field as Fusion Materials, including a monster Special Summoned by this card with the above effect. Once per turn, during your Standby Phase: Take 2000 damage.

Dark Contract with Patent License

If your opponent Special Summons a monster(s) with the same card type (Fusion, Synchro, Xyz, or Link) as a "D/D/D" monster you control (except during the Damage Step): You can inflict 1000 damage to your opponent, also, while this card is on the field, your opponent cannot Special Summon monsters with the same card type as that Special Summoned monster for the rest of this turn. If this card is sent to the GY: You can add 1 "D/D" monster from your GY, or 1 face-up "D/D" Pendulum Monster from your Extra Deck, to your hand. You can only use this effect of "Dark Contract with Patent License" once per turn.

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.

Dark Contract with the Eternal Darkness

While you have 2 "D/D" cards in your Pendulum Zones, your opponent cannot target monsters on the field with Spell/Trap effects, Tribute them for a Tribute Summon, nor use them as Materials for a Fusion, Synchro, or Xyz Summon. Once per turn, during your Standby Phase: Take 1000 damage.

Dark Contract with Errors

Once per turn, if you control a "D/D" monster: You can negate all Trap Card effects on the field (other than this card's) for the rest of this turn (even if this card leaves the field). Once per turn, during your Standby Phase: Take 1000 damage.

D/D Recruits

If your opponent controls more monsters than you do: Target any number of "D/D" monsters and/or "Dark Contract" cards in your Graveyard up to the difference; add those cards to your hand. You can only activate 1 "D/D Recruits" per turn.

D/D Reroll

"Dark Contract" cards you control cannot be destroyed by your opponent's card effects. You can banish this card from your Graveyard, then target up to 3 of your other banished "D/D" cards; shuffle them into the Deck.

D/D/D Contract Change

When an opponent's monster declares an attack: Activate 1 of these effects;
- Banish 1 "D/D/D" monster from your Graveyard, and if you do, the attacking monster loses ATK equal to the banished monster's ATK.
- Add 1 Level 4 or lower "D/D" Pendulum Monster from your Deck to your hand.

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.

D/D/D Headhunt

If you control a "D/D/D" monster: Target 1 face-up monster your opponent controls; take control of it until the End Phase of the next turn, but its effects are negated, it cannot declare an attack, also if it is a monster Special Summoned from the Extra Deck, it is also treated as a "D/D/D" monster. You can only activate 1 "D/D/D Headhunt" 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.

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 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 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 Dragonbane King Beowulf

Fiend/Fusion/Effect

1 "D/D/D" monster + 1 "D/D" monster

If a "D/D" monster you control attacks a Defense Position monster, inflict piercing battle damage to your opponent. Once per turn, during your Standby Phase: You can destroy all cards in the Spell & Trap Zones.

D/D/D Wave Oblivion King Caesar Ragnarok

Fiend/Fusion/Effect

2 "D/D/D" monsters
Once per turn, when an attack is declared involving this card: You can target 1 other "D/D" or "Dark Contract" card you control; return it to the hand, and if you do, equip 1 face-up monster your opponent controls to this card, except the battling monster. This card gains ATK equal to the combined original ATK of the monsters equipped to it by this effect.

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.

D/D/D Cursed King Siegfried

Fiend/Synchro/Effect

1 Tuner + 1 or more non-Tuner "D/D" monsters
During either player's turn: You can target 1 face-up Spell/Trap Card on the field; that target has its effects negated, until the next Standby Phase. You can only use this effect of "D/D/D Cursed King Siegfried" once per turn. If this card is destroyed by battle or card effect and sent to the Graveyard: Gain 1000 LP for each "Dark Contract" card you control.

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.

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.

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 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.