DM4 Companion

We serve card previews. Try it: 🎴Leviathan Leviathan — Effect Monster (Sea-Dragon) [Water-Kin] — Level 6 — Cost 43 — ATK 1800 / DEF 1500 — Unleashes all-consuming tsunami, transforming the battlefield into Sea. ※ YKJ

The stamps YKJ represent the card's availability per version. Filled means deckable, ringed means after the campaign, and grey means never.

open me to learn about making the cardpool more colorful

art:

We provide addon patches that paint fusion results violet, and ritual monsters cyan. Set the toggle to “recolored” to color the hover-previews in this way.

browse all 900 cards, side by side →

🔤Reading a Card

This legend explains the symbols and jargon.

Symbol	Meaning
⚔	attack power
🛡	defense power
≤ / ≥	at most / at least, in effect conditions
※	this card has an entry in Card Notes

Levels

Most buff effects speak in levels, like so: boosts allied Magnets #2 by 1 level. One level is +500 ⚔ and +500 🛡. A monster can be at most two levels above its baseline, or one below.

“-kin”

-kin, e.g. Illusion-kin, refers to alignment, rather than type.

🔎Ask About a Card

Type any card and learn all about it.

🌗Alignments

Every monster wears one, printed under its type. The cycles below say who beats whom; the table says what we renamed.

DM4J	DM4E	This translation
くろkuro	Shadow	Black
しろshiro	Light	White
あくまakuma	Fiend	Demon
げんそうgensō	Dreams	Illusion
ほのおhonō	Pyro	Fire
みずmizu	Aqua	Water
かみkami	Divine	God

The advantage cycle

Fire > Forest > Wind > Earth > Thunder > Water > Fire

Black > White > Demon > Illusion > Black

each > means “beats”, outright · God stands outside both cycles

🐉Types

The types this translation renamed, beside their official names. The rest kept theirs.

DM4J	DM4E	This translation
まほうつかいmahōtsukai	Spellcst	Magician
アンデットandetto	Zombie	Undead
じゅうせんしjūsenshi	BeastWar	Beast-Warrior
ちょうじゅうchōjū	WngBeast	Bird-Beast
あくまakuma	Fiend	Demon
てんしtenshi	Fairy	Angel
かいりゅうkairyū	SeaSerp	Sea-Dragon
いかずちikazuchi	Thunder	Lightning
みずmizu	Aqua	Water
ほのおhonō	Pyro	Fire
がんせきganseki	Rock	Stone
まほうmahō	Spell	Magic

⛰️ Fields

Three terrains wear new names here.

DM4J	DM4E	This translation
そうげんsōgen	Sogen	Grassland
うみumi	Umi	Sea
やみyami	Yami	Darkness

What they do

Terrain	The card says
Arena (neutral)	—
🎴Forest (330) YKJ	This forest boosts Beast, Beast-Warrior, Insect, & Plant monsters by 30%.
🎴Wasteland (331) YKJ	This wasteland boosts Dinosaur, Stone, & Undead monsters by 30%.
🎴Mountain (332) YKJ	This mountain boosts Dragon, Lightning, & Bird-Beast monsters by 30%.
🎴Grassland (333) YKJ	This grassland boosts Beast-Warrior & Warrior monsters by 30%.
🎴Sea (334) YKJ	This sea boosts Water, Fish, Sea-Dragon, & Lightning, & weakens Machine & Fire, by 30%.
🎴Darkness (335) YKJ	This void boosts Magician & Demon monsters by 30% but weakens Angel monsters by 30%.

Battlefield changers

These effects set / change the terrain: 🎴Curse of Dragon Curse of Dragon — Effect Monster (Dragon) [Wind-Kin] — Level 6 — Cost 91 — ATK 2000 / DEF 1500 — Its Hell Flame incinerates battlefields, converting them into Wasteland. , 🎴Leviathan Leviathan — Effect Monster (Sea-Dragon) [Water-Kin] — Level 6 — Cost 43 — ATK 1800 / DEF 1500 — Unleashes all-consuming tsunami, transforming the battlefield into Sea. ※ , 🎴Giant Lithic Soldier Giant Lithic Soldier — Effect Monster (Stone) [Earth-Kin] — Level 6 — Cost 91 — ATK 1300 / DEF 2000 — It shakes the earth, resetting all terrain to neutral Arena. ※ , 🎴Castle of Concealing Darkness, 🎴Mountain Spirit Mountain Spirit — Effect Monster (Magician) [Earth-Kin] — Level 6 — Cost 43 — ATK 1300 / DEF 1800 — The spirit uses its hand-held flute to transform the battlefield into Mountain. , 🎴Trent Trent — Effect Monster (Plant) [Forest-Kin] — Level 6 — Cost 43 — ATK 1500 / DEF 1800 — This great tree guards the spirit forest. It transforms the field into a Forest. .

83 🎴Castle of Concealing Darkness YKJ is built different: it also hides your cards, potentially letting you re-use other monsters’ effects.

📝Card Notes

Where the ※ marks cash in: every marked card without a section of its own is here.

Secret effects

Five “normal” monsters have passive effects their text does not describe.

21 🎴Sealed Exodia YKJ: You win if, after your draw at the start of your turn, you are holding all the pieces of Exodia.

The moth line: if one of these is in play at the start of your turn, it evolves into the next step.

🎴Petit Moth Petit Moth — Monster (Insect) [Forest-Kin] — Level 1 — Cost 16 — ATK 300 / DEF 200 — This tiny larva will become some kind of bug, but its adult form is unknown. ※ → 🎴Larva Moth Larva Moth — Monster (Insect) [Forest-Kin] — Level 2 — Cost 255 — ATK 500 / DEF 400 — Because it's a larva, it looks quite weak. It eventually grows into a colossal moth. ※ → 🎴Evolution Cocoon Evolution Cocoon — Monster (Insect) [Forest-Kin] — Level 6 — Cost 255 — ATK 0 / DEF 2000 — It takes in larvae and evolves them into adults. ※ → 🎴Great Moth Great Moth — Monster (Insect) [Forest-Kin] — Level 8 — Cost 255 — ATK 2600 / DEF 2500 — This giant moth attacks by scattering scale dust. It's especially powerful in forests. ※ → 🎴Completely Ultimate Great Moth

“Strongest monster” effects

Eight cards act on the strongest enemy monster. These all work the same way: the enemy monster with the highest current ⚔ is selected. If there’s a tie, it picks the rightmost qualifying monster. The set: 🎴Arm of the Dead Arm of the Dead — Effect Monster (Undead) [Demon-Kin] — Level 2 — Cost 37 — ATK 600 / DEF 600 — Seizes the strongest enemy monster & drags both victim and itself to the grave together. ※ , 🎴Electric Lizard Electric Lizard — Effect Monster (Lightning) [Thunder-Kin] — Level 3 — Cost 65 — ATK 850 / DEF 800 — Prevents the currently strongest enemy monster from acting next turn. ※ , 🎴Bow-Drawing Mermaid Bow-Drawing Mermaid — Effect Monster (Water) [Water-Kin] — Level 5 — Cost 7 — ATK 1400 / DEF 1500 — Weakens the strongest enemy monster by 1 level and prevents it from acting for 1 turn. ※ , 🎴Brain Control Brain Control — Magic (Magic) — Cost 200 — Take control of the opponent's strongest monster until the end of turn. ※ , 🎴Change of Heart Change of Heart — Magic (Magic) — Cost 255 — Make the opponent's strongest monster into your ally for the remainder of the duel. ※ , 🎴Beckoning to Darkness Beckoning to Darkness — Magic (Magic) — Cost 15 — Destroys the strongest enemy monster on the field. ※ , 🎴Sacrifice Sacrifice — Effect Monster (Magician) [God-Kin] — Level 1 — Cost 255 — ATK 0 / DEF 0 — With its evil eye's magic, it steals and becomes the foe's strongest monster. ※ , and 🎴Thousand-Eyes Sacrifice Thousand-Eyes Sacrifice — Effect Monster (Magician) [God-Kin] — Level 1 — Cost 255 — ATK 0 / DEF 0 — It steals and becomes the foe's strongest monster, raised to its maximum level. ※ .

The graveyard

Three cards interact with the graveyard: 🎴Winged Divine Dragon of Ra Winged Divine Dragon of Ra — Effect Monster (Machine) [God-Kin] — Level 12 — Cost 50 — ATK 4000 / DEF 4000 — Summon from foe's graveyard, then yours, then steal their monsters left to right. Destroy the rest. ※ , 🎴Revival of the Dead Revival of the Dead — Magic (Magic) — Cost 60 — Summon the monster most recently placed in the opposing graveyard, to your field. ※ , and 🎴Gravedigger Ghoul Gravedigger Ghoul — Magic (Magic) — Cost 2 — The gravedigger ghoul removes the card from each graveyard, if one is present. ※ . Each player has a graveyard. Each graveyard has room for exactly one card at a time: the last monster sent there.

Winged Divine Dragon of Ra still depopulates the graveyard even if you don’t have room for the monsters.

Alignment cards

White-kin and Black-kin refer to alignments. Three cards deal with these: 🎴Superstar Superstar — Effect Monster (Angel) [White-Kin] — Level 3 — Cost 47 — ATK 500 / DEF 700 — Boosts allied White-kin by 1 level and weakens allied Black-kin by 1 level. ※ , 🎴Apprentice Witch Apprentice Witch — Effect Monster (Magician) [Black-Kin] — Level 2 — Cost 33 — ATK 550 / DEF 500 — Boosts allied Black-kin by 1 level and weakens allied White-kin by 1 level. ※ , and 🎴Shine Castle Shine Castle — Magic (Magic) — Cost 100 — The dazzling glow given off by this castle boosts White-kin monsters by 1 level. ※ .

Scaling buffs

Five monsters gain a level for each time a condition is met, up to the standard cap on levels: two levels above baseline.

Their on-the-card phrasing of up to 2 does not cover this unlikely edge case: if they are somehow at level -1, and are face-down (so they’re qualified to use their effect), and the condition is fulfilled three or more times (e.g. three cards in hand), then they would gain three levels (-1 → 2).

The five such monsters are: 🎴Wodan of the Forest Wodan of the Forest — Effect Monster (Warrior) [Forest-Kin] — Level 4 — Cost 121 — ATK 900 / DEF 1200 — Gains 1 level for each Plant-type on your field, up to 2. ※ , 🎴Labyrinth Demon Tank Labyrinth Demon Tank — Effect Monster (Machine) [Demon-Kin] — Level 7 — Cost 16 — ATK 2400 / DEF 2400 — Gains 1 level for each Labyrinth Wall on your field, up to 2. ※ , 🎴Black Magician Girl Black Magician Girl — Effect Monster (Magician) [Black-Kin] — Level 6 — Cost 91 — ATK 2000 / DEF 1700 — Gains 1 level for each Black Magician in your hand, up to 2. ※ , 🎴Insect Queen Insect Queen — Effect Monster (Insect) [Forest-Kin] — Level 7 — Cost 16 — ATK 2200 / DEF 2400 — Gains 1 level for each Insect-type on your field, up to 2. ※ , and 🎴Sky Dragon of Osiris Sky Dragon of Osiris — Effect Monster (Dragon) [God-Kin] — Level 12 — Cost 50 — ATK 4000 / DEF 4000 — Gains 1 level for each card in your hand, up to 2. ※ .

Cards that name other cards

These cards name other cards whose names here differ from the official ones.

12 🎴Barbarian #2 YKJ ↔ 554 🎴Barbarian #1 YKJ

160 🎴Magnets #1 YKJ ↔ 161 🎴Magnets #2 YKJ

224 🎴Trap Master YKJ → 🎴Sulfuric Acid Pitfall Sulfuric Acid Pitfall — Trap (Trap) — Cost 128 — Opponent's attacking monster with ≤3000 ⚔ falls into the acid pit and perishes.

687 🎴Tengu’s Fan YKJ reflects the fixed-damage burn spells, the whole ladder of them:

🎴Sparks Sparks — Magic (Magic) — Cost 0 — These falling sparks deal 50 damage to the opponent. 50 → 🎴Fireball Fireball — Magic (Magic) — Cost 5 — This hurled fireball deals 100 damage to the opponent. 100 → 🎴Burning at the Stake Burning at the Stake — Magic (Magic) — Cost 15 — This fiery punishment inflicts 200 damage to the opponent. 200 → 🎴Ceaseless Inferno Ceaseless Inferno — Magic (Magic) — Cost 50 — This inferno burns for a full day, dealing 500 damage to the opponent. 500 → 🎴Hellfire Hellfire — Magic (Magic) — Cost 100 — Hellfire erupts, dealing 1000 damage to the opponent. 1000

730 🎴Dark-Eyes Illusionist YKJ → 731 🎴Sacrifice YKJ

760 🎴Black Magician Girl YKJ → 🎴Black Magician Black Magician — Monster (Magician) [Black-Kin] — Level 8 — Cost 27 — ATK 2500 / DEF 2100 — It has top-tier offensive and defensive power among all magic users.

782 🎴Lightning Rod YKJ ↔ 🎴Thunderbolt Thunderbolt — Magic (Magic) — Cost 50 — Strikes all enemy monsters with an electric shock, annihilating them!

Battle modes

320 🎴Defense Seal YKJ: every enemy is flipped into attack mode and exposed, and during their next turn they can neither set nor switch anything into defense.

⚔️ Buff Magic

Some magic cards give buffs. Most of these buff one qualifying monster by one level. The full wardrobe has a page of its own, linked below: what your monster can wear, and whom your buff can dress.

Cards with more going on than the standard buff

303 🎴Dark Energy YKJ

318 🎴Kaleidoscope · Gorgeous Clones YKJ: 🎴Harpie Lady Harpie Lady — Effect Monster (Bird-Beast) [Wind-Kin] — Level 5 — Cost 5 — ATK 1300 / DEF 1400 — Boosts allied Harpie's Pet Dragon by 1 level. → 🎴Harpie Lady Sisters Trio Harpie Lady Sisters Trio — Effect Monster (Bird-Beast) [Wind-Kin] — Level 7 — Cost 2 — ATK 1950 / DEF 2100 — Boosts allied Harpie's Pet Dragon to its maximum level. ※

658 🎴Metallization YKJ transforms either of two monsters:

🎴Red-Eyes Black Dragon Red-Eyes Black Dragon — Monster (Dragon) [Demon-Kin] — Level 7 — Cost 16 — ATK 2400 / DEF 2000 — It has top-tier attack power. This card is so rare it may as well be an illusion! → 🎴Red-Eyes Black Metal Dragon Red-Eyes Black Metal Dragon — Monster (Machine) [Black-Kin] — Level 9 — Cost 0 — ATK 2800 / DEF 2400 — This Red-Eyes Black Dragon has been further empowered through metallization.

🎴Devilzoa Devilzoa — Monster (Demon) [Demon-Kin] — Level 8 — Cost 41 — ATK 2600 / DEF 1900 — This monster reportedly achieves its true potential when metallicized. → 🎴Metal Devilzoa Metal Devilzoa — Monster (Machine) [Demon-Kin] — Level 9 — Cost 0 — ATK 3000 / DEF 2300 — Devilzoa's metallicized form boasts devastating offensive might.

what can my monster wear? · all buffs and their exact targets →

🕯️ Rituals

Ritual cards name their inputs and their output. These names can differ from the official ones. The relationship between ritual, sacrifice, and result, as well as any naming differences, are tabulated here.

This is how to use a ritual card: sacrifice only the two other monsters. The named monster(s) need to remain on the field. Else you’ll expend the ritual card and get no benefit.

#	Ritual	Sacrifice	Summons

🎮Versions & Banlists

Each version bans the decking of a third-or-so of the nominal cardpool. This banlist is loosened slightly upon beating Pegasus for the fifth time. A few cards are limited to one-ofs, or are undeckable in any version. These limitations can be turned off via the opendeck add-on patch.

Specifically, there’re 317 banned in Yugi, 256 banned in Kaiba, and 244 banned in Jonouchi. Finishing the game unlocks 15** more cards in Yugi, 26 in Kaiba, and 37 in Jonouchi.

Limited to one copy

The one-of cards (22)

#	Card	In	Password

Version-specific cards

The cards that aren't everywhere

#	Card	In	Password

Trading

Any card can be traded between any of the versions. DM4 can also trade with DM1, DM2, and DM3. The banlists do not restrict trading in any way.

God cards are intended to be gotten through trading. Each god card is deckable in only one of the versions. The card is only dropped in the other two versions. The relationships are shown below.

God card	Deckable in	Drops in
Obelisk	Kaiba	Yugi, Jonouchi
Osiris	Yugi	Kaiba, Jonouchi
Ra	Jonouchi	Kaiba, Yugi

Each version of the game excludes one of the Dark Stage opponents. That excluded opponent is the one who drops the deckable god card. Incidentally, those three cards are the only ones without a password.

🏆Opponents

Decklists, prize pools, and odds found within.

Sugoroku is covered too, though not as an opponent. His table is for the bonus card he can award after a duel.

The decklists also say how much capacity each deck uses.

decklists and reward-tables →

🧬Fusion

Learn about fusion; there are 43,220 fusable pairs and 117 resulting monsters.

To fuse, “use” one monster on another. The resulting monster isn’t able to do anything else on the turn it is created.

The fusion page has a search widget and it has a list of the 117 fusable-for monsters and how to make them. Here’s an example entry:

the fusion lab and the recipe book →

🏷️ Name Changes

601 cards’ names differ from those used in the TCG and those used in the Early Days Collection’s translation.

Margin favorites

These are the names we especially liked.

#	DM4J	TCG print	DM4E	This translation	In
299	otomeオトメ	〃	🎴Sonic Maid	🎴Belle	YKJ
656	joubutsuじょうぶつ	〃	🎴Eternal Rest	🎴Last Sutra	YKJ
676	odoriniyoruyuuhatsuおどりによるゆうはつ	〃	🎴Commencement Dance	🎴Invocation Through Dance	YKJ
698	kosumokuīnnoinoriコスモクイーンのいのり	never printed	🎴C. Queen's Prayer	🎴Beseech the Cosmo Queen	YKJ
875	raijingu warabīライジング・ワラビー	never printed	🎴Rising Wallaby	🎴Raijin' Wallaby	YKJ

Find a card

#	DM4J	TCG print	DM4E	This translation	In

The DM4E column shows the name used in the Early Days Collection. A 〃 means the TCG and the Early Days Collection agree on the name.

all 601 renames →

🔑Passwords

Passwords can be used to unlock cards, among other things. These nine are those "other things".

Password	What it does
17232574	Sugoroku gives the player an extra card after each duel
71837829	Change the Dark Stage opponent to Mai Kujaku
45442120	Change the Dark Stage opponent to Keith
82659417	Change the Dark Stage opponent to Dark Bakura, except in the Kaiba version
45565702	Change the Dark Stage opponent to Malik, except in the Jonouchi version
18054115	Change the Dark Stage opponent to Dark Yugi, except in the Yugi version
19170603	Change the Secret Stage opponent to Yugi Gonbutori
83771069	Change the Secret Stage opponent to Kaiser Umiuma
44220672	View the credits

every card’s password →

💾Save Editor

Your save file, palpated.

Load a DM4 .sav and edit it! Or, rather, edit and save a copy; we don’t touch the original. The save/apply button’s near the top of the page.

open the save editor →

🍒Add-ons

Consider running some of the optional features!

The main patch is solely a translation.

opendeck every card is deckable

rainbow

fusion-target monsters have a violet background color
effect-fusions’ textboxes have an orange outline
ritual-target monsters have a ritual-cyan background color
the one effect-ritual’s textbox has an orange outline

bugfixes

Beckoning to Darkness stops incorrectly fizzling
Pot of Greed stops taking up a spot in your hand during its resolution

🐛Bugs

We inherit a bug from the base game.

Beckoning to Darkness fizzles if user’s monster zone is full — its code was copied from 🎴Change of Heart Change of Heart — Magic (Magic) — Cost 255 — Make the opponent's strongest monster into your ally for the remainder of the duel. ※ ’s, which checks for an empty spot since it needs somewhere to put the stolen monster. This “got any room?” check still runs, so given full monster zones, 🎴Beckoning to Darkness Beckoning to Darkness — Magic (Magic) — Cost 15 — Destroys the strongest enemy monster on the field. ※ incorrectly spares the opposing monster. The beckonfix add-on removes it. The computer opponent already does not check for this, so it can beckon your guys regardless.

Pot of Greed cannot entirely refill your hand — during its resolution, it reserves space in your hand, the space it used to be in before casting it. Thus it can’t draw you to five. The potfix add-on tweaks its routine to make it not do this.