Quarter Century Stampede

You can Special Summon this card (from your Graveyard) by returning 1 "Dark World" monster you control to the hand, except "Grapha, Dragon Lord of Dark World". If this card is discarded to the Graveyard by a card effect: Target 1 card your opponent controls; destroy that target, then, if this card was discarded from your hand to your Graveyard by an opponent's card effect, look at 1 random card in your opponent's hand, then, if it was a monster, you can Special Summon it to your side of the field.

Grapha, Dragon Lord of Dark World

Quarter Century Bonanza

If this card is discarded to the Graveyard by a card effect: If it was discarded from your hand to your Graveyard by an opponent's card effect, you can target up to 2 cards your opponent controls; Special Summon this card from the Graveyard, then destroy those targets (if any).

Goldd, Wu-Lord of Dark World

If this card is discarded to the Graveyard by a card effect: Special Summon it from the Graveyard, then, if this card was discarded from your hand to your Graveyard by an opponent's card effect, your opponent returns exactly 2 cards from their hand to the bottom of their Deck, in any order.

Sillva, Warlord of Dark World

Maze of Millennia

"Reign-Beaux, Overlord of Dark World" + 2+ Fiend monsters
If this card is Fusion Summoned: You can destroy all cards your opponent controls. This card's original ATK/DEF each become the number of materials used for its Summon x 1000. Once per turn (Quick Effect): You can target 1 face-up card you control; discard 1 card, also your opponent cannot target that face-up card with card effects for the rest of this turn.

Clorless, Chaos King of Dark World

Speed Duel GX: Duelists of Shadows

When this card inflicts battle damage to your opponent: You can discard 1 card.

Brron, Mad King of Dark World

Target 1 Set card on the field; destroy that target, then discard 1 card.

Dark World Lightning

If this card is discarded from your hand to your Graveyard by an opponent's card effect: Special Summon this card from the Graveyard. When this card is Special Summoned this way: Destroy all monsters your opponent controls OR all Spell/Trap Cards they control.

Reign-Beaux, Overlord of Dark World

The name of this illustrious knight is known by all residents of Dark World. He never oppresses the commoners.

Zure, Knight of Dark World

Structure Deck: Dark World

If this card is discarded to the Graveyard by a card effect: Special Summon it from the Graveyard.

Beiige, Vanguard of Dark World

If this card is discarded to the Graveyard by a card effect: Draw 1 card, plus another card if this card was discarded from your hand to your Graveyard by an opponent's card effect.

Broww, Huntsman of Dark World

If this card is discarded to the Graveyard by a card effect: Special Summon this card from the Graveyard to your opponent's side of the field in face-up Defense Position. When this card is Special Summoned by the effect of a "Dark World" card: Your opponent must discard 1 card.

Ceruli, Guru of Dark World

Target 1 Level 4 or lower Fiend monster in your GY; Special Summon it, then discard 1 Fiend monster. You can only activate 1 "Charge Into a Dark World" per turn.

Charge Into a Dark World

During the Main Phase: Fusion Summon 1 Fiend Fusion Monster from your Extra Deck, by banishing materials mentioned on it from your field or GY. If Fusion Summoning a "Dark World" monster this way, you can also discard monsters as material. During your Main Phase, if this card is in your GY: You can add this card to your hand, then discard 1 "Dark World" monster. You can only use each effect of "Dark World Accession" once per turn.

Dark World Accession

During your Main Phase: You can discard 1 "Dark World" monster, and if you do, "Dark World" monsters you currently control gain ATK equal to the Level the discarded monster had in the hand x 100, until the end of this turn. If a monster whose original Type is Fiend is discarded from your hand by the effect of a "Dark World" card or an opponent's card effect, even during the Damage Step: You can discard 1 card, then draw 2 cards. You can only use each effect of "Dark World Archives" once per turn.

Dark World Archives

When an opponent's monster activates its effect, if you have 3 or more cards in your hand (except during the Damage Step): You can target 1 "Dark World" monster on the field; return it to the hand, and if you do, the activated effect becomes "Discard 1 random card from your opponent's hand".

Dark World Brainwashing

Each player draws 1 card, then each player discards 1 card.

Dark World Dealings

When a monster(s) would be Normal or Special Summoned: You can negate the Summon, and if you do, destroy that monster(s), then discard 1 Fiend monster. If a "Dark World" monster(s) you control would be destroyed by battle or an opponent's card effect, you can banish this card from your GY instead. You can only use each effect of "Dark World Punishment" once per turn.

Dark World Punishment

Target up to 3 cards in any GY(s); banish them, then discard 1 Fiend monster. During your Main Phase, except the turn this card was sent to the GY: You can banish this card from your GY, then target 1 of your banished Fiend monsters; add it to your hand. You can only activate 1 "Dark World Puppetry" per turn.

Dark World Puppetry

Target 1 "Dark World" monster in your Graveyard; Special Summon that target. You cannot Summon other monsters the turn you activate this card (but you can Set).

Gateway to Dark World

You can only Special Summon "Genta, Gateman of Dark World" once per turn. You can discard this card to the GY; add 1 "The Gates of Dark World" from your Deck to your hand. If this card is banished and you control a "Dark World" card: You can Special Summon this card.

Genta, Gateman of Dark World

"Grapha, Dragon Lord of Dark World" + 1 DARK monster
When your opponent activates a monster effect, or a Normal Spell/Trap Card, while you have a card(s) in your hand (Quick Effect): You can activate this effect; the activated effect becomes "Your opponent discards 1 card". You can only use this effect of "Grapha, Dragon Overlord of Dark World" once per turn. If this Fusion Summoned card in its owner's control leaves the field because of an opponent's card: You can Special Summon 1 of your "Grapha, Dragon Lord of Dark World" that is banished or in your GY, then each player with a hand discards 1 card.

Grapha, Dragon Overlord of Dark World

If this card is discarded to the Graveyard by a card effect: Target 1 Spell/Trap Card on the field; destroy that target.

Gren, Tactician of Dark World

If this card is discarded to the Graveyard by a card effect: Target 1 monster on the field; destroy that target.

Kahkki, Guerilla of Dark World

If this card is discarded to the Graveyard by a card effect: If it was discarded from your hand to your Graveyard by an opponent's card effect, target 1 Fiend-Type monster on the field; Special Summon this card from the Graveyard, then that target (if any) gains 500 ATK.

Latinum, Exarch of Dark World

If this card is discarded to the Graveyard by a card effect: Special Summon it from the Graveyard, then, if this card was discarded from your hand to your Graveyard by an opponent's card effect, you can Special Summon 1 Fiend-Type monster from your Deck to either side of the field.

Lucent, Netherlord of Dark World

If this card is discarded to the GY by card effect: You can target 1 "Dark World" monster in your GY, except "Parl, Hermit of Dark World"; Special Summon it to either field, then, if this card was discarded from your hand to your GY by an opponent's card effect, you can Special Summon, to either field, 1 of your Fiend monsters that is banished, or in your hand or GY. You can only use this effect of "Parl, Hermit of Dark World" once per turn.

Parl, Hermit of Dark World

You can Special Summon this card (from your GY) by returning 1 Level 7 or lower "Dark World" monster you control to the hand. If this card is discarded to the GY by card effect: You can add 1 Level 5 or higher "Dark World" monster from your Deck to your hand, except "Reign-Beaux, Overking of Dark World", then, if this card was discarded from your hand to your GY by an opponent's card effect, you can Special Summon 1 Level 4 or lower "Dark World" monster from your Deck or GY to either field.

Reign-Beaux, Overking of Dark World

His renowned athletic physique has made him famous with the populace of Dark World. They call him "Iron Wall Renge" because no one can break through his incredible defenses.

Renge, Gatekeeper of Dark World

When this card is destroyed by battle and sent to the Graveyard: Add 1 Level 4 or lower "Dark World" monster from your Deck to your hand.

Scarr, Scout of Dark World

If this card is discarded to the Graveyard by a card effect: If it was discarded from your hand to your Graveyard by an opponent's card effect, you can target 1 monster in your opponent's Graveyard; add 1 "Dark World" card from your Deck to your hand, then Special Summon that target (if any) in face-up Defense Position.

Snoww, Unlight of Dark World

Target 2 "Dark World" monsters in your Graveyard; add those targets to your hand.

The Forces of Darkness

All Fiend-Type monsters gain 300 ATK and DEF. Once per turn: You can banish 1 Fiend-Type monster from your Graveyard; discard 1 Fiend-Type monster, then draw 1 card.

The Gates of Dark World

Speed Duel: Battle City Box

They say he is a dragon-manipulating warrior from the dark world. His attack is tremendous, using his great swords with vicious power.

Dark Blade

Legendary Collection 4: Joey's World Mega Pack

During your End Phase, if you discard a monster(s) to the Graveyard because you had more cards than your hand size limit: You can target 1 of those monsters; Special Summon that target.

Dark World Grimoire

Starter Deck: Yu-Gi-Oh! 5D's

The new form of the enigmatic Inpachi, remodeled by cutting-edge Dark World technology. Maneuverability has been sacrificed for strong armor, which is considered more important.

Woodborg Inpachi

Dark Revelation Volume 4

A gourmet food renowned by the Dark World upper crust. It has sensational flavor.

Mad Lobster

Dark Revelation Volume 2

A workaholic fiend who devotes everything to his research into the languages of Dark World. His mind has collapsed because of working too hard.