| MurderThe List Tokens · M20-109 | The List Tokens | M20-109 | Common | €0.10 |
| MurderZendikar Rising Commander · 47 | Zendikar Rising Commander | 47 | Common | €0.14 |
| Murderous CompulsionCommander 2019 · 122 | Commander 2019 | 122 | Common | €0.17 |
| Murderous CompulsionInnistrad Remastered · 126 | Innistrad Remastered | 126 | Common | €0.06 |
| Murderous CompulsionThe List Tokens · SOI-126 | The List Tokens | SOI-126 | Common | €0.11 |
| Murderous CompulsionShadows over Innistrad · 126 | Shadows over Innistrad | 126 | Common | €0.11 |
| Murdock's CrusadeMarvel Super Heroes · 24 | Marvel Super Heroes | 24 | Common | €0.06 |
| Murk DwellersFourth Edition Foreign Black Border · 148 | Fourth Edition Foreign Black Border | 148 | Common | €0.15 |
| Murk DwellersFourth Edition · 148 | Fourth Edition | 148 | Common | €0.06 |
| Murk DwellersFifth Edition · 180 | Fifth Edition | 180 | Common | €0.07 |
| Murk DwellersThe Dark · 49 | The Dark | 49 | Common | $0.19 |
| Murk DwellersIntroductory Two-Player Set · 21 | Introductory Two-Player Set | 21 | Common | €0.02 |
| Murk DwellersRenaissance · 62 | Renaissance | 62 | Common | €0.09 |
| Murk DwellersRivals Quick Start Set · 20 | Rivals Quick Start Set | 20 | Common | — |
| Murk StriderBattle for Zendikar · 62 | Battle for Zendikar | 62 | Common | $0.06 |
| Murky SewerDuskmourn: House of Horror · 263 | Duskmourn: House of Horror | 263 | Common | €0.09 |
| Murmuring MysticCommander Masters · 107 | Commander Masters | 107 | Common | $0.39 |
| Murmuring MysticOutlaws of Thunder Junction Commander · 102 | Outlaws of Thunder Junction Commander | 102 | Common | €0.89 |
| Murmuring PhantasmDragon's Maze · 15 | Dragon's Maze | 15 | Common | €0.05 |
| Murmuring PhantasmJumpstart · 157 | Jumpstart | 157 | Common | $0.29 |
| Murmuring VolumeReality Fracture · 174 | Reality Fracture | 174 | Common | €0.05 |
| Murmurs from BeyondCommander 2011 · 53 | Commander 2011 | 53 | Common | €0.07 |
| Murmurs from BeyondSaviors of Kamigawa · 47 | Saviors of Kamigawa | 47 | Common | €0.11 |
| Muscle BurstOdyssey · 252 | Odyssey | 252 | Common | €0.11 |
| Muscle BurstThe List Tokens · ODY-252 | The List Tokens | ODY-252 | Common | €0.07 |
| Muscle SliverPremium Deck Series: Slivers · 9 | Premium Deck Series: Slivers | 9 | Common | $1.26 |
| Muscle SliverThe List Tokens · TMP-238 | The List Tokens | TMP-238 | Common | $1.18 |
| Muscle SliverTempest · 238 | Tempest | 238 | Common | €0.72 |
| Muscle SliverMagic Online Promos · 36034 | Magic Online Promos | 36034 | Common | — |
| Muscle SliverTempest Remastered · 182 | Tempest Remastered | 182 | Common | — |
| Muse DrakeGuilds of Ravnica · 46 | Guilds of Ravnica | 46 | Common | $0.05 |
| Muse DrakeFoundations Jumpstart · 330 | Foundations Jumpstart | 330 | Common | €0.11 |
| Muse's EncouragementSecrets of Strixhaven · 61 | Secrets of Strixhaven | 61 | Common | €0.03 |
| Museum NightwatchMurders at Karlov Manor · 25 | Murders at Karlov Manor | 25 | Common | €0.03 |
| Mushroom WatchdogsThe Lord of the Rings: Tales of Middle-earth · 180 | The Lord of the Rings: Tales of Middle-earth | 180 | Common | €0.09 |
| Mushroom WatchdogsThe Lord of the Rings: Tales of Middle-earth · 631 | The Lord of the Rings: Tales of Middle-earth | 631 | Common | €0.21 |
| Mutagenic GrowthNew Phyrexia · 116 | New Phyrexia | 116 | Common | $1.19 |
| Mutagenic GrowthThe List Tokens · NPH-116 | The List Tokens | NPH-116 | Common | $1.15 |
| Mutant Chain ReactionTeenage Mutant Ninja Turtles · 125 | Teenage Mutant Ninja Turtles | 125 | Common | €0.03 |
| Mutant's PreyDragon's Maze · 45 | Dragon's Maze | 45 | Common | €0.12 |
| Mutant SurveyorAetherdrift · 98 | Aetherdrift | 98 | Common | €0.02 |
| Mutant TownTeenage Mutant Ninja Turtles · 187 | Teenage Mutant Ninja Turtles | 187 | Common | €0.06 |
| Mutant Town MusiciansTeenage Mutant Ninja Turtles · 97 | Teenage Mutant Ninja Turtles | 97 | Common | €0.03 |
| MutinyRivals of Ixalan · 106 | Rivals of Ixalan | 106 | Common | $0.08 |
| 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 | €0.07 |
| 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 |
| Muzzio's PreparationsConspiracy · 7 | Conspiracy | 7 | Common | $0.10 |