| Maximum Carnage // Maximum CarnageMarvel's Spider-Man Art Series · 46 | Marvel's Spider-Man Art Series | 46 | — | — |
| Maximum OverdriveAetherdrift · 96 | Aetherdrift | 96 | Common | €0.07 |
| Maximus, Knight ApparentSecret Lair Drop Tokens · 2449 | Secret Lair Drop Tokens | 2449 | Mythic Rare | $0.94 |
| Mayael's AriaDouble Masters 2022 · 253 | Double Masters 2022 | 253 | Rare | €0.76 |
| Mayael's AriaDouble Masters 2022 · 524 | Double Masters 2022 | 524 | Rare | €2.87 |
| Mayael's AriaAlara Reborn · 121 | Alara Reborn | 121 | Rare | €0.76 |
| Mayael's AriaSecret Lair Drop Tokens · 1848 | Secret Lair Drop Tokens | 1848 | Rare | €0.88 |
| Mayael the AnimaShards of Alara · 179 | Shards of Alara | 179 | Mythic Rare | €0.81 |
| Mayael the AnimaCommander 2013 · 199 | Commander 2013 | 199 | Mythic Rare | €0.66 |
| Mayael the AnimaCommander 2013 Oversized · 199 | Commander 2013 Oversized | 199 | Mythic Rare | €0.37 |
| Mayael the AnimaCommander's Arsenal Oversized · 8 | Commander's Arsenal Oversized | 8 | Mythic Rare | €1.08 |
| Mayael the Anima AvatarMagic Online Avatars · 86 | Magic Online Avatars | 86 | Rare | — |
| May Civilization CollapseArchenemy Schemes · 25★ | Archenemy Schemes | 25★ | Common | €5.70 |
| MayhemMarvel Super Heroes Jumpstart Front Cards · 36 | Marvel Super Heroes Jumpstart Front Cards | 36 | — | — |
| Mayhem DevilDuskmourn: House of Horror Commander · 225 | Duskmourn: House of Horror Commander | 225 | Uncommon | €0.45 |
| Mayhem DevilEdge of Eternities Commander · 121 | Edge of Eternities Commander | 121 | Uncommon | $0.34 |
| Mayhem DevilRavnica Remastered · 199 | Ravnica Remastered | 199 | Uncommon | €0.57 |
| Mayhem DevilSecret Lair Promo · 28 | Secret Lair Promo | 28 | Rare | €0.86 |
| Mayhem DevilRavnica Remastered · 374 | Ravnica Remastered | 374 | Uncommon | €0.60 |
| Mayhem DevilThe List Tokens · WAR-204 | The List Tokens | WAR-204 | Uncommon | $0.35 |
| Mayhem DevilSecret Lair Drop Tokens · 1715 | Secret Lair Drop Tokens | 1715 | Rare | €13.40 |
| Mayhem DevilWar of the Spark · 204 | War of the Spark | 204 | Uncommon | €0.40 |
| Mayhem PatrolStreets of New Capenna · 114 | Streets of New Capenna | 114 | Common | €0.07 |
| May of the MachineUnknown Event · CB03 | Unknown Event | CB03 | Common | — |
| Mayor of Avabruck // Howlpack AlphaInnistrad Remastered · 207 | Innistrad Remastered | 207 | Rare | €0.45 |
| Mayor of Avabruck // Howlpack AlphaInnistrad · 193 | Innistrad | 193 | Rare | $0.56 |
| Mayor of Avabruck // Howlpack AlphaInnistrad Promos · 193★ | Innistrad Promos | 193★ | Rare | €0.60 |
| Mayor of Avabruck // Howlpack AlphaShadows of the Past · 53 | Shadows of the Past | 53 | Rare | — |
| Mayor of Avabruck // Howlpack AlphaMagic Online Promos · 42866 | Magic Online Promos | 42866 | Rare | — |
| May the Mana Be with YouUnknown Event · CC03 | Unknown Event | CC03 | Common | $36.05 |
| Maze AbominationDragon's Maze · 26 | Dragon's Maze | 26 | Common | €0.08 |
| Maze BehemothDragon's Maze · 43 | Dragon's Maze | 43 | Common | €0.07 |
| Maze GliderDragon's Maze · 13 | Dragon's Maze | 13 | Common | €0.04 |
| Mazemind TomeThe Brothers' War Retro Artifacts · 30 | The Brothers' War Retro Artifacts | 30 | Rare | €0.26 |
| Mazemind TomeThe Brothers' War Retro Artifacts · 93 | The Brothers' War Retro Artifacts | 93 | Rare | $0.33 |
| Mazemind TomeThe Brothers' War Retro Artifacts · 93z | The Brothers' War Retro Artifacts | 93z | Rare | €149.94 |
| Mazemind TomeCommander Masters · 959 | Commander Masters | 959 | Rare | €0.15 |
| Mazemind TomeFoundations · 676 | Foundations | 676 | Rare | €0.17 |
| Mazemind TomeCore Set 2021 · 232 | Core Set 2021 | 232 | Rare | €0.22 |
| Mazemind TomeCore Set 2021 · 383 | Core Set 2021 | 383 | Rare | €0.63 |
| Mazemind TomeCore Set 2021 Promos · 232p | Core Set 2021 Promos | 232p | Rare | €0.23 |
| Mazemind TomeCore Set 2021 Promos · 232s | Core Set 2021 Promos | 232s | Rare | $0.74 |
| Mazemind TomeThe List Tokens · M21-232 | The List Tokens | M21-232 | Rare | $0.31 |
| Mazemind TomeMagic Online Promos · 82010 | Magic Online Promos | 82010 | Rare | — |
| Mazemind TomeFoundations Commander · 268 | Foundations Commander | 268 | Rare | €0.21 |
| Mazemind Tome // Mazemind TomeThe Brothers' War Art Series · 66 | The Brothers' War Art Series | 66 | — | — |
| Maze of IthDouble Masters · 322 | Double Masters | 322 | Rare | €8.78 |
| Maze of IthDominaria Remastered · 250 | Dominaria Remastered | 250 | Rare | €7.68 |
| Maze of IthThe Dark · 117 | The Dark | 117 | Uncommon | €19.14 |
| Maze of IthDominaria Remastered · 398 | Dominaria Remastered | 398 | Rare | €8.56 |