| Meandering RiverTreasure Chest · 70799 | Treasure Chest | 70799 | Common | — |
| Meandering TowershellKhans of Tarkir · 141 | Khans of Tarkir | 141 | Rare | €0.13 |
| Meandering TowershellSecret Lair Drop Tokens · 236 | Secret Lair Drop Tokens | 236 | Rare | €0.49 |
| Meandering TowershellThe List Tokens · KTK-141 | The List Tokens | KTK-141 | Rare | €0.13 |
| Meanders GuideLorwyn Eclipsed · 25 | Lorwyn Eclipsed | 25 | Uncommon | €0.09 |
| Measure of WickednessSaviors of Kamigawa · 82 | Saviors of Kamigawa | 82 | Uncommon | €0.21 |
| Meathook Massacre IIDuskmourn: House of Horror · 108 | Duskmourn: House of Horror | 108 | Mythic Rare | €2.31 |
| Meathook Massacre IIDuskmourn: House of Horror · 293 | Duskmourn: House of Horror | 293 | Mythic Rare | $2.59 |
| Meathook Massacre IIDuskmourn: House of Horror · 311 | Duskmourn: House of Horror | 311 | Mythic Rare | €2.14 |
| Meathook Massacre IIDuskmourn: House of Horror Promos · 108p | Duskmourn: House of Horror Promos | 108p | Mythic Rare | $2.29 |
| Meathook Massacre IIDuskmourn: House of Horror Promos · 108s | Duskmourn: House of Horror Promos | 108s | Mythic Rare | €3.43 |
| Meat Locker // Drowned DinerDuskmourn: House of Horror · 65 | Duskmourn: House of Horror | 65 | Common | €0.10 |
| Meatsqueak, Hoard LordMystery Booster Commander Edition · 32 | Mystery Booster Commander Edition | 32 | Rare | €15.75 |
| Mechan AssemblerEdge of Eternities · 63 | Edge of Eternities | 63 | Uncommon | €0.09 |
| Mechanical GliderAvatar: The Last Airbender Eternal · 256 | Avatar: The Last Airbender Eternal | 256 | Common | $0.13 |
| Mechanical MobsterMarvel's Spider-Man · 168 | Marvel's Spider-Man | 168 | Common | €0.04 |
| Mechanical MobsterThrough the Omenpaths · 163 | Through the Omenpaths | 163 | Common | — |
| Mechanized Ninja CavalryTeenage Mutant Ninja Turtles · 156 | Teenage Mutant Ninja Turtles | 156 | Common | €0.12 |
| Mechanized ProductionAether Revolt · 38 | Aether Revolt | 38 | Mythic Rare | €1.64 |
| Mechanized ProductionJumpstart 2022 · 320 | Jumpstart 2022 | 320 | Mythic Rare | €1.68 |
| Mechanized ProductionMarvel Universe · 57 | Marvel Universe | 57 | Mythic Rare | €1.60 |
| Mechanized ProductionMurders at Karlov Manor Commander · 109 | Murders at Karlov Manor Commander | 109 | Mythic Rare | €1.33 |
| Mechanized ProductionAether Revolt Promos · 38s | Aether Revolt Promos | 38s | Mythic Rare | €8.61 |
| Mechanized ProductionFallout · 178 | Fallout | 178 | Mythic Rare | €1.68 |
| Mechanized ProductionFallout · 461 | Fallout | 461 | Mythic Rare | €1.76 |
| Mechanized ProductionFallout · 706 | Fallout | 706 | Mythic Rare | €5.04 |
| Mechanized ProductionFallout · 989 | Fallout | 989 | Mythic Rare | €5.00 |
| Mechanized ProductionThe List Tokens · AER-38 | The List Tokens | AER-38 | Mythic Rare | €2.06 |
| Mechanized ProductionSecret Lair Drop Tokens · 1841 | Secret Lair Drop Tokens | 1841 | Mythic Rare | €1.71 |
| Mechanized WarfareThe Brothers' War · 139 | The Brothers' War | 139 | Rare | $0.65 |
| Mechanized WarfareThe Brothers' War · 338 | The Brothers' War | 338 | Rare | $1.01 |
| Mechanized WarfareThe Brothers' War Promos Tokens · 139p | The Brothers' War Promos Tokens | 139p | Rare | €0.56 |
| Mechanized WarfareThe Brothers' War Promos Tokens · 139s | The Brothers' War Promos Tokens | 139s | Rare | $0.98 |
| Mechanized WarfareMagic Online Promos · 105738 | Magic Online Promos | 105738 | Rare | — |
| Mechan NavigatorEdge of Eternities · 64 | Edge of Eternities | 64 | Uncommon | €0.10 |
| MechanozoaEdge of Eternities · 66 | Edge of Eternities | 66 | Common | €0.08 |
| Mechan ShieldmateEdge of Eternities · 65 | Edge of Eternities | 65 | Common | €0.06 |
| Mech HangarKamigawa: Neon Dynasty · 270 | Kamigawa: Neon Dynasty | 270 | Uncommon | €0.23 |
| MechtitanKamigawa: Neon Dynasty Tokens · 14 | Kamigawa: Neon Dynasty Tokens | 14 | — | $9.11 |
| Mechtitan CoreKamigawa: Neon Dynasty · 249 | Kamigawa: Neon Dynasty | 249 | Rare | $0.28 |
| Mechtitan CoreKamigawa: Neon Dynasty · 402 | Kamigawa: Neon Dynasty | 402 | Rare | €1.12 |
| Mechtitan CoreKamigawa: Neon Dynasty · 497 | Kamigawa: Neon Dynasty | 497 | Rare | €0.47 |
| Mechtitan CoreKamigawa: Neon Dynasty Promos · 249p | Kamigawa: Neon Dynasty Promos | 249p | Rare | €0.21 |
| Mechtitan CoreKamigawa: Neon Dynasty Promos · 249s | Kamigawa: Neon Dynasty Promos | 249s | Rare | $0.73 |
| Mechtitan CoreMagic Online Promos · 98109 | Magic Online Promos | 98109 | Rare | — |
| Mechtitan Core // Mechtitan CoreSecret Lair Drop Tokens · 1965 | Secret Lair Drop Tokens | 1965 | Rare | $3.15 |
| Mechtitan // MechtitanSecret Lair Drop Tokens · 1969 | Secret Lair Drop Tokens | 1969 | — | €2.80 |
| MeddleMirage · 73 | Mirage | 73 | Uncommon | €0.16 |
| MeddleOnslaught · 92 | Onslaught | 92 | Uncommon | €0.14 |
| Meddling KidsUnhinged · 118 | Unhinged | 118 | Rare | €0.57 |