| MisinformationAlliances · 56 | Alliances | 56 | Uncommon | €0.42 |
| MisinformationMasters Edition II · 105 | Masters Edition II | 105 | Uncommon | — |
| Misleading MotesWilds of Eldraine · 61 | Wilds of Eldraine | 61 | Common | €0.04 |
| Misleading SignpostWilds of Eldraine Commander · 11 | Wilds of Eldraine Commander | 11 | Rare | €8.43 |
| Misleading SignpostWilds of Eldraine Commander · 47 | Wilds of Eldraine Commander | 47 | Rare | €9.61 |
| Misleading SignpostFoundations Commander · 69 | Foundations Commander | 69 | Rare | $3.46 |
| Misleading SignpostThe List Tokens · WOC-11 | The List Tokens | WOC-11 | Rare | €3.18 |
| Miss DemeanorUnglued · 10 | Unglued | 10 | Uncommon | €0.40 |
| Misshapen FiendMercadian Masques · 147 | Mercadian Masques | 147 | Common | €0.08 |
| Miss HighwaterMystery Booster Commander Edition · 16 | Mystery Booster Commander Edition | 16 | Rare | €5.39 |
| Mission BriefingGuilds of Ravnica · 44 | Guilds of Ravnica | 44 | Rare | $0.35 |
| Mission BriefingMurders at Karlov Manor Commander · 110 | Murders at Karlov Manor Commander | 110 | Rare | €0.27 |
| Mission BriefingGuilds of Ravnica Promos · 44p | Guilds of Ravnica Promos | 44p | Rare | €0.47 |
| Mission BriefingGuilds of Ravnica Promos · 44s | Guilds of Ravnica Promos | 44s | Rare | €1.53 |
| MisstepMercadian Masques · 88 | Mercadian Masques | 88 | Common | €0.11 |
| MissyDoctor Who · 8 | Doctor Who | 8 | Rare | €0.28 |
| MissyDoctor Who · 431 | Doctor Who | 431 | Rare | €0.23 |
| MissyDoctor Who · 546 | Doctor Who | 546 | Rare | €0.42 |
| MissyDoctor Who · 613 | Doctor Who | 613 | Rare | €0.73 |
| MissyDoctor Who · 1022 | Doctor Who | 1022 | Rare | €1.19 |
| MissyDoctor Who · 1137 | Doctor Who | 1137 | Rare | €6.71 |
| Mistakes Were MadeUnfinity · 147 | Unfinity | 147 | Common | €0.07 |
| Mistakes Were MadeUnfinity · 433 | Unfinity | 433 | Common | €0.43 |
| Mistbind CliqueLorwyn · 75 | Lorwyn | 75 | Rare | €6.10 |
| Mistbind CliqueSecret Lair Drop Tokens · 116 | Secret Lair Drop Tokens | 116 | Rare | $14.46 |
| Mistbind CliqueSpecial Guests · 131 | Special Guests | 131 | Mythic Rare | $3.10 |
| Mistblade ShinobiBetrayers of Kamigawa · 43 | Betrayers of Kamigawa | 43 | Common | €0.78 |
| Mistblade ShinobiPlanechase Anthology · 20 | Planechase Anthology | 20 | Common | €0.47 |
| Mistblade ShinobiPlanechase 2012 · 20 | Planechase 2012 | 20 | Common | €1.29 |
| Mistblade ShinobiThe List Tokens · PCA-20 | The List Tokens | PCA-20 | Common | $0.55 |
| Mistblade ShinobiSalvat 2005 · E29 | Salvat 2005 | E29 | Common | €0.87 |
| Mistbreath ElderBloomburrow · 184 | Bloomburrow | 184 | Rare | €0.29 |
| Mistbreath ElderBloomburrow · 323 | Bloomburrow | 323 | Rare | €0.54 |
| Mistbreath ElderBloomburrow Promos · 184p | Bloomburrow Promos | 184p | Rare | €0.31 |
| Mistbreath ElderBloomburrow Promos · 184s | Bloomburrow Promos | 184s | Rare | $0.42 |
| MistcallerCore Set 2019 · 62 | Core Set 2019 | 62 | Rare | $0.38 |
| MistcallerCore Set 2019 Promos · 62s | Core Set 2019 Promos | 62s | Rare | €2.21 |
| Mist-Cloaked HeraldCore Set 2019 · 310 | Core Set 2019 | 310 | Common | $0.68 |
| Mist-Cloaked HeraldMarvel Super Heroes Commander · 760 | Marvel Super Heroes Commander | 760 | Common | €0.26 |
| Mist-Cloaked HeraldRivals of Ixalan · 43 | Rivals of Ixalan | 43 | Common | $0.36 |
| Mistcutter HydraTheros · 162 | Theros | 162 | Rare | €1.07 |
| Mistcutter HydraPioneer Masters · 184 | Pioneer Masters | 184 | Rare | — |
| Mist DancerThe Lost Caverns of Ixalan Commander · 44 | The Lost Caverns of Ixalan Commander | 44 | Rare | €0.25 |
| Mist DancerThe Lost Caverns of Ixalan Commander · 76 | The Lost Caverns of Ixalan Commander | 76 | Rare | $0.33 |
| Mist DragonMirage · 79 | Mirage | 79 | Rare | €1.51 |
| Mister Cheddar, Cheese SliverUnknown Event · RB05a | Unknown Event | RB05a | Rare | — |
| Mister FantasticMarvel Super Heroes Commander · 2 | Marvel Super Heroes Commander | 2 | Mythic Rare | $0.40 |
| Mister FantasticMarvel Super Heroes Commander · 876 | Marvel Super Heroes Commander | 876 | Mythic Rare | €0.72 |
| Mister Fantastic, Reed RichardsMarvel Super Heroes · 66 | Marvel Super Heroes | 66 | Uncommon | €0.20 |
| Mister Fantastic, Reed RichardsMarvel Super Heroes · 320 | Marvel Super Heroes | 320 | Uncommon | €0.34 |