| Mystic Archaeologist (6 variants) | 511 |
| Myojin of Night's Reach | 610 |
| Muldrotha, the Gravetide | 430 |
| Muldrotha, the Gravetide | 440 |
| Muldrotha, the Gravetide (12 variants) | 243 |
| Mountain (12 variants) | 288 |
| Mountain (12 variants) | 289 |
| Mountain (12 variants) | 278 |
| Mountain (12 variants) | 279 |
| Mossborn Hydra (12 variants) | 107 |
| Mossborn Hydra (12 variants) | 337 |
| Mossborn Hydra (8 variants) | 471 |
| Mossborn Hydra | 399 |
| Mortify | 662 |
| Moment of Triumph (6 variants) | 500 |
| Moment of Craving (6 variants) | 524 |
| Mold Adder | 640 |
| Mocking Sprite (12 variants) | 159 |
| Mocking Sprite | 744 |
| Mischievous Pup (12 variants) | 144 |
| Mischievous Mystic (12 variants) | 47 |
| Mindsparker | 628 |
| Mild-Mannered Librarian (12 variants) | 228 |
| Midnight Snack (12 variants) | 65 |
| Midnight Reaper | 609 |
| Micromancer (12 variants) | 158 |
| Meteor Golem (12 variants) | 256 |
| Mentor of the Meek | 578 |
| Mazemind Tome | 676 |
| Maze's End | 727 |
| Massacre Wurm | 714 |
| Massacre Wurm | 754 |
| Marauding Blight-Priest (12 variants) | 178 |
| Make Your Move (12 variants) | 143 |
| Make a Stand | 708 |
| Magnigoth Sentry (6 variants) | 556 |
| Maelstrom Pulse | 661 |
| Macabre Waltz (12 variants) | 177 |
| Maalfeld Twins (6 variants) | 523 |
| Lyra Dawnbringer | 738 |
| Lyra Dawnbringer (2 variants) | 707 |
| Lunar Insight (12 variants) | 46 |
| Lunar Insight (12 variants) | 310 |
| Lunar Insight | 378 |
| Lunar Insight (8 variants) | 456 |
| Luminous Rebuke (12 variants) | 20 |
| Loot, Exuberant Explorer | 398 |
| Loot, Exuberant Explorer (12 variants) | 336 |
| Loot, Exuberant Explorer (8 variants) | 470 |
| Loot, Exuberant Explorer (12 variants) | 106 |