| Machine AttackerUnlisted Printings | Unlisted Printings | — | — | — |
| Machine Conversion FactoryLegend of Blue Eyes White Dragon · 096 | Legend of Blue Eyes White Dragon | 096 | Short Print | €0.02 |
| Machine DuplicationRise of Destiny · 041 | Rise of Destiny | 041 | Rare | €0.09 |
| Machine KingYu-Gi-Oh! Trading Card Game Tour 2004 promotional card · 001 | Yu-Gi-Oh! Trading Card Game Tour 2004 promotional card | 001 | Ultra Rare | €0.28 |
| Machine King - 3000 B.C.Absolute Powerforce · 074 | Absolute Powerforce | 074 | Common | €0.06 |
| Machine King PrototypeShadow of Infinity · 012 | Shadow of Infinity | 012 | Common | €0.06 |
| Machine Lord UrCrossroads of Chaos · 093 | Crossroads of Chaos | 093 | Secret Rare | $0.18 |
| Macro CosmosEnemy of Justice · 057 | Enemy of Justice | 057 | Common | €0.02 |
| Mad ArchfiendCrossroads of Chaos · 003 | Crossroads of Chaos | 003 | Rare | €0.17 |
| Mad Dog of DarknessInvasion of Chaos · 057 | Invasion of Chaos | 057 | Rare | €0.12 |
| Made to Order Mermaid Outfit OutfitterPhoton Hypernova · 085 | Photon Hypernova | 085 | Super Rare | €0.14 |
| Mad HackerBattle of Chaos · 030 | Battle of Chaos | 030 | Common | €0.06 |
| Madjinn GunnUnlisted Printings | Unlisted Printings | — | — | — |
| Mad LobsterCybernetic Revolution · 003 | Cybernetic Revolution | 003 | Common | €0.15 |
| Mad MaulerDimension Force · 013 | Dimension Force | 013 | Common | €0.06 |
| Madolche AnjellyPrimal Origin · 028 | Primal Origin | 028 | Ultra Rare | €0.75 |
| Madolche BaapleReturn of the Duelist · 022 | Return of the Duelist | 022 | Common | €0.08 |
| Madolche ButleruskReturn of the Duelist · 025 | Return of the Duelist | 025 | Common | €0.23 |
| Madolche ChateauReturn of the Duelist · 061 | Return of the Duelist | 061 | Common | €0.13 |
| Madolche ChickolatesJudgment of the Light · 099 | Judgment of the Light | 099 | Common | €0.14 |
| Madolche ChouxvalierReturn of the Duelist · 023 | Return of the Duelist | 023 | Rare | €0.56 |
| Madolche CruffssantAbyss Rising · 025 | Abyss Rising | 025 | Common | €0.16 |
| Madolche DessertThe Infinite Forbidden · 077 | The Infinite Forbidden | 077 | Common | €0.06 |
| Madolche Fresh SistartFlames of Destruction · 097 | Flames of Destruction | 097 | Common | €0.08 |
| Madolche HootcakeLord of the Tachyon Galaxy · 032 | Lord of the Tachyon Galaxy | 032 | Super Rare | $0.40 |
| Madolche LessonReturn of the Duelist · 070 | Return of the Duelist | 070 | Common | €0.16 |
| Madolche MagileineReturn of the Duelist · 024 | Return of the Duelist | 024 | Super Rare | €0.70 |
| Madolche MarmalmaideAbyss Rising · 026 | Abyss Rising | 026 | Common | €0.22 |
| Madolche MessengelatoAbyss Rising · 027 | Abyss Rising | 027 | Rare | €1.37 |
| Madolche MewfeuilleReturn of the Duelist · 021 | Return of the Duelist | 021 | Common | €0.43 |
| Madolche Mini MeowcaroonsThe Infinite Forbidden · 050 | The Infinite Forbidden | 050 | Common | €0.06 |
| Madolche NightsLord of the Tachyon Galaxy · 076 | Lord of the Tachyon Galaxy | 076 | Super Rare | €0.21 |
| MadolchepaloozaAbyss Rising · 074 | Abyss Rising | 074 | Super Rare | €5.49 |
| Madolche PetingcessoeurSavage Strike · 023 | Savage Strike | 023 | Rare | €0.17 |
| Madolche PromenadeEternity Code · 076 | Eternity Code | 076 | Super Rare | $1.26 |
| Madolche PuddingcessReturn of the Duelist · 026 | Return of the Duelist | 026 | Ultra Rare | €0.15 |
| Madolche Puddingcess Chocolat-a-la-ModeCrossed Souls · 051 | Crossed Souls | 051 | Ultra Rare | €1.49 |
| Madolche Queen TiarafraiseThe Infinite Forbidden · 044 | The Infinite Forbidden | 044 | Super Rare | $0.15 |
| Madolche Queen TiaramisuAbyss Rising · 048 | Abyss Rising | 048 | Ultra Rare | €0.22 |
| Madolche SalonEternity Code · 064 | Eternity Code | 064 | Ultra Rare | €0.09 |
| Madolche Tea BreakReturn of the Duelist · 072 | Return of the Duelist | 072 | Rare | $0.67 |
| Madolche Teacher GlassouffleDark Neostorm · 039 | Dark Neostorm | 039 | Rare | €0.14 |
| Madolche TicketAbyss Rising · 061 | Abyss Rising | 061 | Common | €0.49 |
| Madolche WaltzReturn of the Duelist · 071 | Return of the Duelist | 071 | Common | €0.22 |
| Mad ReloaderYu-Gi-Oh! GX Tag Force 2 promotional cards · 001 | Yu-Gi-Oh! GX Tag Force 2 promotional cards | 001 | Super Rare | €0.07 |
| Mad Sword BeastPharaoh's Servant · 091 | Pharaoh's Servant | 091 | Rare | €0.02 |
| Mad Tempest Trirealm Rift PloutonionUnlisted Printings | Unlisted Printings | — | — | — |
| Maestroke the Symphony DjinnStarter Deck: Xyz Symphony · 043 | Starter Deck: Xyz Symphony | 043 | Super Rare | €0.20 |
| Magellanica, the Deep Sea CityRise of the Duelist · 059 | Rise of the Duelist | 059 | Super Rare | €0.12 |
| Mage PowerLabyrinth of Nightmare · 050 | Labyrinth of Nightmare | 050 | Ultra Rare | €0.12 |