| MiSolfachord EliteiaAncient Guardians · 016 | Ancient Guardians | 016 | Rare | €0.07 |
| MispolymerizationThe Lost Millennium · 053 | The Lost Millennium | 053 | Common | €0.02 |
| Missing ForceAbyss Rising · 038 | Abyss Rising | 038 | Short Print | $0.11 |
| Missus RadiantCode of the Duelist · 052 | Code of the Duelist | 052 | Super Rare | €0.12 |
| MistakeShadow Specters · 076 | Shadow Specters | 076 | Secret Rare | €0.19 |
| Mistaken AccusationBreakers of Shadow · 068 | Breakers of Shadow | 068 | Short Print | $0.10 |
| Mistaken ArrestClash of Rebellions · 065 | Clash of Rebellions | 065 | Secret Rare | $0.48 |
| Mistar BoyCode of the Duelist Special Edition · 3 | Code of the Duelist Special Edition | 3 | Super Rare | €0.16 |
| Mist ArchfiendForce of the Breaker · 064 | Force of the Breaker | 064 | Secret Rare | €0.09 |
| Mist Bird ClausolasJudgment of the Light · 043 | Judgment of the Light | 043 | Super Rare | €0.78 |
| Mist BodyMcDonald's Promotional Cards 2 · 005 | McDonald's Promotional Cards 2 | 005 | Rare | €0.20 |
| Mist CondorDuel Terminal 1 · 068 | Duel Terminal 1 | 068 | Duel Terminal Rare Parallel Rare | €0.14 |
| Mist Valley Apex AvianDuel Terminal 2 · 079 | Duel Terminal 2 | 079 | Duel Terminal Rare Parallel Rare | $0.22 |
| Mist Valley Baby RocDuel Terminal 2 · 019 | Duel Terminal 2 | 019 | Duel Terminal Normal Parallel Rare | €0.05 |
| Mist Valley ExecutorDuel Terminal 2 · 020 | Duel Terminal 2 | 020 | Duel Terminal Normal Parallel Rare | €0.02 |
| Mist Valley FalconDuel Terminal 2 · 078 | Duel Terminal 2 | 078 | Duel Terminal Normal Parallel Rare | €0.09 |
| Mist Valley ShamanHidden Arsenal · 005 | Hidden Arsenal | 005 | Secret Rare | €0.06 |
| Mist Valley SoldierHidden Arsenal · 006 | Hidden Arsenal | 006 | Secret Rare | €0.10 |
| Mist Valley ThunderbirdHidden Arsenal · 004 | Hidden Arsenal | 004 | Secret Rare | €0.02 |
| Mist Valley Thunder LordDuel Terminal 2 · 090 | Duel Terminal 2 | 090 | Duel Terminal Ultra Parallel Rare | $0.09 |
| Mist Valley WatcherDuel Terminal 1 · 067 | Duel Terminal 1 | 067 | Duel Terminal Normal Parallel Rare | €0.13 |
| Mist Valley WindmasterDuel Terminal 1 · 069 | Duel Terminal 1 | 069 | Duel Terminal Normal Parallel Rare | €0.15 |
| Mist WurmHidden Arsenal · 023 | Hidden Arsenal | 023 | Secret Rare | $0.31 |
| Mithra the Thunder VassalEmperor of Darkness Structure Deck · 011 | Emperor of Darkness Structure Deck | 011 | Common | €0.21 |
| Mitsurugi Great PurificationSupreme Darkness · 096 | Supreme Darkness | 096 | Common | €0.11 |
| Mitsurugi MagatamaAlliance Insight · 094 | Alliance Insight | 094 | Super Rare | €0.04 |
| Mitsurugi MirrorAlliance Insight · 093 | Alliance Insight | 093 | Common | €0.06 |
| Mitsurugi no Mikoto, AramasaAlliance Insight · 090 | Alliance Insight | 090 | Super Rare | €0.06 |
| Mitsurugi no Mikoto, KusanagiSupreme Darkness · 090 | Supreme Darkness | 090 | Common | €0.07 |
| Mitsurugi no Mikoto, SajiSupreme Darkness · 091 | Supreme Darkness | 091 | Common | €0.05 |
| Mitsurugi no Miko, WousuAlliance Insight · 091 | Alliance Insight | 091 | Common | €0.06 |
| Mitsurugi PrayersSupreme Darkness · 094 | Supreme Darkness | 094 | Common | €0.03 |
| Mitsurugi RitualSupreme Darkness · 095 | Supreme Darkness | 095 | Ultra Rare | €0.15 |
| Mitsurugi Sacred BoundaryAlliance Insight · 095 | Alliance Insight | 095 | Common | €0.05 |
| Mitsurugi TempestAlliance Insight · 096 | Alliance Insight | 096 | Common | €0.02 |
| Mitsu the Insect NinjaDarkwing Blast · 016 | Darkwing Blast | 016 | Ultra Rare | €0.11 |
| MixeroidLegendary Duelists · 029 | Legendary Duelists | 029 | Rare | €0.09 |
| Mixousia the ConfounderChaos Origins · 085 | Chaos Origins | 085 | Common | €0.13 |
| Moai Interceptor CannonsThe Lost Millennium · 014 | The Lost Millennium | 014 | Common | €0.07 |
| Mobius the Frost MonarchSoul of the Duelist · 022 | Soul of the Duelist | 022 | Super Rare | €0.36 |
| Mobius the Mega MonarchLegacy of the Valiant · 040 | Legacy of the Valiant | 040 | Secret Rare | €0.65 |
| MogmoleAbyss Rising · 004 | Abyss Rising | 004 | Common | €0.09 |
| Moissa Knight, the Comet GeneralCyberstorm Access · 081 | Cyberstorm Access | 081 | Common | €0.08 |
| Moissa WightAlliance Insight · 029 | Alliance Insight | 029 | Common | €0.11 |
| Moisture CreaturePharaonic Guardian · 013 | Pharaonic Guardian | 013 | Rare | €0.08 |
| MojaDuelist Pack Collection Tin 2009 · 4 | Duelist Pack Collection Tin 2009 | 4 | Ultra Rare | €0.19 |
| Mokey MokeyAncient Sanctuary · 057 | Ancient Sanctuary | 057 | Super Short Print | €0.14 |
| Mokey Mokey AdriftPower of the Elements · 030 | Power of the Elements | 030 | Common | €0.06 |
| Mokey Mokey KingRise of Destiny · 036 | Rise of Destiny | 036 | Common | €0.14 |
| Mokey Mokey SmackdownRise of Destiny · 043 | Rise of Destiny | 043 | Common | €0.11 |