| Marang River ProwlerZendikar Rising Commander · 29 | Zendikar Rising Commander | 29 | Uncommon | $0.08 |
| Marang River SkeletonDragons of Tarkir · 108 | Dragons of Tarkir | 108 | Uncommon | €0.02 |
| Marauding LooterIxalan · 225 | Ixalan | 225 | Uncommon | €0.10 |
| Marauding MakoAetherdrift · 138 | Aetherdrift | 138 | Uncommon | $0.45 |
| Marauding MakoAetherdrift · 419 | Aetherdrift | 419 | Uncommon | €0.99 |
| Marauding SphinxOutlaws of Thunder Junction · 56 | Outlaws of Thunder Junction | 56 | Uncommon | €0.11 |
| Marble DiamondClassic Sixth Edition · 298 | Classic Sixth Edition | 298 | Uncommon | $0.35 |
| Marble DiamondSeventh Edition · 306 | Seventh Edition | 306 | Uncommon | €0.36 |
| Marble DiamondSeventh Edition · 306★ | Seventh Edition | 306★ | Uncommon | $0.67 |
| Marble DiamondCommander 2014 · 248 | Commander 2014 | 248 | Uncommon | €0.02 |
| Marble DiamondDuel Decks: Divine vs. Demonic · 24 | Duel Decks: Divine vs. Demonic | 24 | Uncommon | €0.15 |
| Marble DiamondDuel Decks Anthology: Divine vs. Demonic · 24 | Duel Decks Anthology: Divine vs. Demonic | 24 | Uncommon | €0.27 |
| Marble DiamondMirage · 310 | Mirage | 310 | Uncommon | €0.83 |
| Marble DiamondThe List Tokens · MIR-310 | The List Tokens | MIR-310 | Uncommon | €0.34 |
| Marble PriestLegends · 286 | Legends | 286 | Uncommon | €1.64 |
| Marchesa's DecreeConspiracy: Take the Crown · 44 | Conspiracy: Take the Crown | 44 | Uncommon | €1.79 |
| Marchesa's DecreeThe List Tokens · CN2-44 | The List Tokens | CN2-44 | Uncommon | $0.89 |
| Marchesa's DecreeTreasure Chest · 20 | Treasure Chest | 20 | Uncommon | — |
| Marchesa's DecreeFoundations Commander · 113 | Foundations Commander | 113 | Uncommon | $0.24 |
| Marchesa's InfiltratorConspiracy · 22 | Conspiracy | 22 | Uncommon | €0.18 |
| Marchesa's SmugglerConspiracy · 50 | Conspiracy | 50 | Uncommon | €0.15 |
| March from the Black GateThe Lord of the Rings: Tales of Middle-earth · 94 | The Lord of the Rings: Tales of Middle-earth | 94 | Uncommon | €0.16 |
| March from the Black GateThe Lord of the Rings: Tales of Middle-earth · 545 | The Lord of the Rings: Tales of Middle-earth | 545 | Uncommon | €0.49 |
| March Toward PerfectionAlchemy: Phyrexia · 9 | Alchemy: Phyrexia | 9 | Uncommon | — |
| Mardu BlazebringerKhans of Tarkir · 115 | Khans of Tarkir | 115 | Uncommon | $0.04 |
| Mardu BlazebringerKhans of Tarkir · 115y | Khans of Tarkir | 115y | Uncommon | — |
| Mardu CharmKhans of Tarkir · 186 | Khans of Tarkir | 186 | Uncommon | $0.07 |
| Mardu Heart-PiercerDuel Decks: Speed vs. Cunning Tokens · 13 | Duel Decks: Speed vs. Cunning Tokens | 13 | Uncommon | €0.06 |
| Mardu Heart-PiercerKhans of Tarkir · 116 | Khans of Tarkir | 116 | Uncommon | $0.03 |
| Mardu Heart-PiercerJumpstart 2022 · 572 | Jumpstart 2022 | 572 | Uncommon | $0.06 |
| Mardu MonumentTarkir: Dragonstorm · 245 | Tarkir: Dragonstorm | 245 | Uncommon | €0.08 |
| Mardu RoughriderKhans of Tarkir · 187 | Khans of Tarkir | 187 | Uncommon | €0.11 |
| Mardu RoughriderThe List Tokens · KTK-187 | The List Tokens | KTK-187 | Uncommon | €0.11 |
| Mardu ShadowspearFate Reforged · 74 | Fate Reforged | 74 | Uncommon | €0.18 |
| Mardu ShadowspearFate Reforged Promos · 74 | Fate Reforged Promos | 74 | Uncommon | €0.27 |
| Mardu ShadowspearMagic Online Promos · 55717 | Magic Online Promos | 55717 | Uncommon | — |
| Mardu Woe-ReaperFate Reforged · 18 | Fate Reforged | 18 | Uncommon | €0.21 |
| Marhault ElsdragonChronicles Foreign Black Border · 79 | Chronicles Foreign Black Border | 79 | Uncommon | €1.24 |
| Marhault ElsdragonChronicles · 79 | Chronicles | 79 | Uncommon | €0.15 |
| Marhault ElsdragonLegends · 244 | Legends | 244 | Uncommon | €1.62 |
| Marhault ElsdragonMasters Edition III · 161 | Masters Edition III | 161 | Uncommon | — |
| Marionette ApprenticeModern Horizons 3 · 100 | Modern Horizons 3 | 100 | Uncommon | €1.32 |
| Marionette ApprenticeModern Horizons 3 · 410 | Modern Horizons 3 | 410 | Uncommon | €1.92 |
| Marionette ApprenticeThe List Tokens · MH3-100 | The List Tokens | MH3-100 | Uncommon | — |
| Marisi's TwinclawsAlara Reborn · 140 | Alara Reborn | 140 | Uncommon | $0.19 |
| Marisi's TwinclawsDuel Decks: Ajani vs. Nicol Bolas · 17 | Duel Decks: Ajani vs. Nicol Bolas | 17 | Uncommon | €0.05 |
| Marisi's TwinclawsMagic Online Promos · 36186 | Magic Online Promos | 36186 | Uncommon | — |
| Market GnomeThe Lost Caverns of Ixalan · 22 | The Lost Caverns of Ixalan | 22 | Uncommon | €0.12 |
| Mark for DeathGatecrash · 99 | Gatecrash | 99 | Uncommon | €0.06 |
| Mark of EvictionRavnica: City of Guilds · 58 | Ravnica: City of Guilds | 58 | Uncommon | $0.14 |