| Mutinous MassacreEdge of Eternities Promos · 222p | Edge of Eternities Promos | 222p | Rare | €0.10 |
| Mutinous MassacreEdge of Eternities Promos · 222s | Edge of Eternities Promos | 222s | Rare | $0.48 |
| MutinyRivals of Ixalan · 106 | Rivals of Ixalan | 106 | Common | $0.07 |
| MutinyThe List Tokens · RIX-106 | The List Tokens | RIX-106 | Common | €0.08 |
| Mutual DestructionIkoria: Lair of Behemoths · 96 | Ikoria: Lair of Behemoths | 96 | Common | €0.06 |
| Mutual EpiphanyMarch of the Machine Commander · 151 | March of the Machine Commander | 151 | Common | €0.25 |
| Mutual EpiphanyPlanechase 2012 Planes · 4 | Planechase 2012 Planes | 4 | Common | €0.59 |
| Mutual EpiphanyPlanechase Anthology Planes · 4 | Planechase Anthology Planes | 4 | Common | €0.22 |
| Muxus, Goblin GrandeeJumpstart · 24 | Jumpstart | 24 | Rare | $10.44 |
| Muxus, Goblin GrandeeJumpstart 2022 · 575 | Jumpstart 2022 | 575 | Rare | $11.64 |
| Muxus, Goblin GrandeeThe List Tokens · JMP-24 | The List Tokens | JMP-24 | Rare | $9.81 |
| Muxus, Goblin GrandeeSecret Lair Drop Tokens · 1314 | Secret Lair Drop Tokens | 1314 | Rare | €60.96 |
| Muxus, Goblin GrandeeSecret Lair Drop Tokens · 1314★ | Secret Lair Drop Tokens | 1314★ | Rare | $108.77 |
| Mu YanlingGlobal Series Jiang Yanggu & Mu Yanling Tokens · 1 | Global Series Jiang Yanggu & Mu Yanling Tokens | 1 | Mythic Rare | €4.78 |
| Mu YanlingTreasure Chest · 70795 | Treasure Chest | 70795 | Mythic Rare | — |
| Mu Yanling, Celestial WindCore Set 2020 · 286 | Core Set 2020 | 286 | Mythic Rare | €1.26 |
| Mu Yanling, Sky DancerFoundations Jumpstart · 329 | Foundations Jumpstart | 329 | Mythic Rare | €0.30 |
| Mu Yanling, Sky DancerCore Set 2020 · 68 | Core Set 2020 | 68 | Mythic Rare | $0.65 |
| Mu Yanling, Sky DancerCore Set 2020 Promos · 68p | Core Set 2020 Promos | 68p | Mythic Rare | $1.58 |
| Mu Yanling, Sky DancerCore Set 2020 Promos · 68s | Core Set 2020 Promos | 68s | Mythic Rare | €7.98 |
| Mu Yanling, Sky Dancer EmblemCore Set 2020 Tokens · 12 | Core Set 2020 Tokens | 12 | — | $0.44 |
| Mu Yanling, Wind RiderAetherdrift · 52 | Aetherdrift | 52 | Mythic Rare | $0.43 |
| Mu Yanling, Wind RiderAetherdrift · 379 | Aetherdrift | 379 | Mythic Rare | €0.53 |
| Mu Yanling, Wind RiderAetherdrift · 399 | Aetherdrift | 399 | Mythic Rare | €4.53 |
| Mu Yanling, Wind RiderAetherdrift · 409 | Aetherdrift | 409 | Mythic Rare | €31.25 |
| Mu Yanling, Wind RiderAetherdrift · 437 | Aetherdrift | 437 | Mythic Rare | €1.81 |
| Mu Yanling, Wind RiderAetherdrift Promos · 52p | Aetherdrift Promos | 52p | Mythic Rare | €0.42 |
| Mu Yanling, Wind RiderAetherdrift Promos · 52s | Aetherdrift Promos | 52s | Mythic Rare | $1.23 |
| Muzzio's PreparationsConspiracy · 7 | Conspiracy | 7 | Common | $0.10 |
| Muzzio, Visionary ArchitectThe Brothers' War Commander · 89 | The Brothers' War Commander | 89 | Mythic Rare | €0.10 |
| Muzzio, Visionary ArchitectConspiracy · 23 | Conspiracy | 23 | Mythic Rare | $0.78 |
| Muzzio, Visionary ArchitectVintage Masters · 82 | Vintage Masters | 82 | Mythic Rare | — |
| MuzzleMercadian Masques · 30 | Mercadian Masques | 30 | Common | $0.11 |
| Mwonvuli Acid-MossThe List Tokens · TSP-207 | The List Tokens | TSP-207 | Common | $0.50 |
| Mwonvuli Acid-MossTime Spiral · 207 | Time Spiral | 207 | Common | $0.77 |
| Mwonvuli Beast TrackerMagic 2013 · 177 | Magic 2013 | 177 | Uncommon | €0.23 |
| Mwonvuli Beast TrackerMagic 2013 Promos · 177★ | Magic 2013 Promos | 177★ | Uncommon | €0.37 |
| Mwonvuli Beast TrackerMagic Online Promos · 45211 | Magic Online Promos | 45211 | Uncommon | — |
| Mwonvuli OozeWeatherlight · 135 | Weatherlight | 135 | Rare | €0.83 |
| Mycelic BalladAlchemy: Ixalan · 12 | Alchemy: Ixalan | 12 | Rare | — |
| My Champion Stands SupremeDuskmourn: House of Horror Commander · 341 | Duskmourn: House of Horror Commander | 341 | Common | $0.26 |
| Mycoid ResurrectionAlchemy: Ixalan · 26 | Alchemy: Ixalan | 26 | Rare | — |
| Mycoid ShepherdAlara Reborn · 73 | Alara Reborn | 73 | Rare | €0.25 |
| Mycoid ShepherdDCI Promos · 28 | DCI Promos | 28 | Rare | €1.88 |
| Mycoid ShepherdMagic Online Promos · 43556 | Magic Online Promos | 43556 | Rare | — |
| MycologistPlanar Chaos · 27 | Planar Chaos | 27 | Uncommon | €0.17 |
| MycologistTime Spiral Remastered · 29 | Time Spiral Remastered | 29 | Uncommon | €0.14 |
| MycolothShards of Alara · 140 | Shards of Alara | 140 | Rare | €0.94 |
| MycolothCommander 2015 · 192 | Commander 2015 | 192 | Rare | €1.05 |
| MycolothCommander 2016 · 158 | Commander 2016 | 158 | Rare | €1.45 |