| Moonrager's SlashInnistrad: Midnight Hunt · 148 | Innistrad: Midnight Hunt | 148 | Common | €0.07 |
| Moonrise ClericBloomburrow · 226 | Bloomburrow | 226 | Common | €0.06 |
| Moonsnare PrototypeKamigawa: Neon Dynasty · 69 | Kamigawa: Neon Dynasty | 69 | Common | €0.21 |
| Moonsnare SpecialistFoundations Jumpstart · 328 | Foundations Jumpstart | 328 | Common | €0.19 |
| Moonsnare SpecialistKamigawa: Neon Dynasty · 70 | Kamigawa: Neon Dynasty | 70 | Common | €0.07 |
| Moonsnare SpecialistKamigawa: Neon Dynasty · 335 | Kamigawa: Neon Dynasty | 335 | Common | €0.10 |
| Moonwing MothSaviors of Kamigawa · 20 | Saviors of Kamigawa | 20 | Common | €0.10 |
| Moor FiendIce Age · 153 | Ice Age | 153 | Common | €0.07 |
| Moorish CavalryArabian Nights · 7 | Arabian Nights | 7 | Common | €3.83 |
| Moorish CavalryArabian Nights · 7† | Arabian Nights | 7† | Common | €5.52 |
| Moorland DrifterShadows over Innistrad · 27 | Shadows over Innistrad | 27 | Common | €0.06 |
| Moorland InquisitorAvacyn Restored · 30 | Avacyn Restored | 30 | Common | €0.02 |
| Moorland InquisitorDuel Decks: Blessed vs. Cursed Tokens · 16 | Duel Decks: Blessed vs. Cursed Tokens | 16 | Common | €0.05 |
| Moorland InquisitorCore Set 2020 · 31 | Core Set 2020 | 31 | Common | €0.03 |
| Moorland InquisitorArena Beginner Set · 15 | Arena Beginner Set | 15 | Common | — |
| MoraleFourth Edition Foreign Black Border · 36 | Fourth Edition Foreign Black Border | 36 | Common | €0.18 |
| MoraleFourth Edition · 36 | Fourth Edition | 36 | Common | €0.12 |
| MoraleThe Dark · 14 | The Dark | 14 | Common | $0.23 |
| MoraleRenaissance · 15 | Renaissance | 15 | Common | €0.07 |
| Morbid HungerOdyssey · 150 | Odyssey | 150 | Common | €0.07 |
| Morbid PlunderMirrodin Besieged · 47 | Mirrodin Besieged | 47 | Common | $0.11 |
| Morbid PlunderDuel Decks: Mirrodin Pure vs. New Phyrexia · 72 | Duel Decks: Mirrodin Pure vs. New Phyrexia | 72 | Common | — |
| Mordenkainen's PolymorphAdventures in the Forgotten Realms · 65 | Adventures in the Forgotten Realms | 65 | Common | €0.05 |
| Mordor MusterThe Lord of the Rings: Tales of Middle-earth · 96 | The Lord of the Rings: Tales of Middle-earth | 96 | Common | €0.12 |
| Mordor MusterThe Lord of the Rings: Tales of Middle-earth · 547 | The Lord of the Rings: Tales of Middle-earth | 547 | Common | €0.44 |
| Mordor TrebuchetThe Lord of the Rings: Tales of Middle-earth · 97 | The Lord of the Rings: Tales of Middle-earth | 97 | Common | €0.14 |
| Mordor TrebuchetThe Lord of the Rings: Tales of Middle-earth · 548 | The Lord of the Rings: Tales of Middle-earth | 548 | Common | €0.34 |
| More of That Strange Oil...Unknown Event · CU13 | Unknown Event | CU13 | Common | — |
| Morgue BurstDragon's Maze · 86 | Dragon's Maze | 86 | Common | $0.03 |
| Morgue TheftOdyssey · 151 | Odyssey | 151 | Common | €0.14 |
| Morgue ThrullStronghold · 65 | Stronghold | 65 | Common | $0.11 |
| Morgue ToadDuel Decks: Ajani vs. Nicol Bolas · 47 | Duel Decks: Ajani vs. Nicol Bolas | 47 | Common | €0.17 |
| Morgue ToadPlaneshift · 46 | Planeshift | 46 | Common | €0.08 |
| Morgul-Knife WoundThe Lord of the Rings: Tales of Middle-earth · 98 | The Lord of the Rings: Tales of Middle-earth | 98 | Common | €0.07 |
| Morgul-Knife WoundThe Lord of the Rings: Tales of Middle-earth · 549 | The Lord of the Rings: Tales of Middle-earth | 549 | Common | €0.23 |
| Moriok ReaverScars of Mirrodin · 70 | Scars of Mirrodin | 70 | Common | $0.05 |
| Moriok ReplicaScars of Mirrodin · 178 | Scars of Mirrodin | 178 | Common | $0.10 |
| Moriok ScavengerMirrodin · 68 | Mirrodin | 68 | Common | €0.07 |
| Morkrut BehemothInnistrad: Double Feature · 114 | Innistrad: Double Feature | 114 | Common | €0.08 |
| Morkrut BehemothFoundations Jumpstart · 465 | Foundations Jumpstart | 465 | Common | €0.19 |
| Morkrut BehemothInnistrad: Midnight Hunt · 114 | Innistrad: Midnight Hunt | 114 | Common | $0.07 |
| Morkrut NecropodShadows over Innistrad Remastered · 125 | Shadows over Innistrad Remastered | 125 | Common | — |
| Morphic TidePlanechase 2012 Planes · 3 | Planechase 2012 Planes | 3 | Common | €0.75 |
| Morphic TidePlanechase Anthology Planes · 3 | Planechase Anthology Planes | 3 | Common | €0.23 |
| MorselhoarderShadowmoor · 212 | Shadowmoor | 212 | Common | €0.16 |
| Morsel TheftMorningtide · 68 | Morningtide | 68 | Common | €0.14 |
| Mortal Flesh Is WeakArchenemy Schemes · 26★ | Archenemy Schemes | 26★ | Common | €6.67 |
| Mortal ObstinacyJourney into Nyx · 17 | Journey into Nyx | 17 | Common | $0.26 |
| Mortal's ArdorBorn of the Gods · 20 | Born of the Gods | 20 | Common | €0.05 |
| Mortal's ArdorDuel Decks: Elspeth vs. Kiora Tokens · 19 | Duel Decks: Elspeth vs. Kiora Tokens | 19 | Common | €0.13 |