| Mischievous Mystic (12 variants) | 47 |
| Mischievous Pup (12 variants) | 144 |
| Mocking Sprite (12 variants) | 159 |
| Mocking Sprite | 744 |
| Mold Adder | 640 |
| Moment of Craving (6 variants) | 524 |
| Moment of Triumph (6 variants) | 500 |
| Mortify | 662 |
| Mossborn Hydra (12 variants) | 107 |
| Mossborn Hydra (12 variants) | 337 |
| Mossborn Hydra (8 variants) | 471 |
| Mossborn Hydra | 399 |
| Mountain (12 variants) | 288 |
| Mountain (12 variants) | 289 |
| Mountain (12 variants) | 278 |
| Mountain (12 variants) | 279 |
| Muldrotha, the Gravetide | 430 |
| Muldrotha, the Gravetide | 440 |
| Muldrotha, the Gravetide (12 variants) | 243 |
| Myojin of Night's Reach | 610 |
| Mystic Archaeologist (6 variants) | 511 |
| Mystical Teachings | 594 |
| Needletooth Pack (12 variants) | 108 |
| Negate | 710 |
| Nessian Hornbeetle (12 variants) | 229 |
| New Horizons (6 variants) | 557 |
| Nine-Lives Familiar (12 variants) | 66 |
| Nine-Lives Familiar (12 variants) | 321 |
| Nine-Lives Familiar | 385 |
| Nine-Lives Familiar (8 variants) | 462 |
| Niv-Mizzet, Visionary | 411 |
| Niv-Mizzet, Visionary (12 variants) | 123 |
| Niv-Mizzet, Visionary (8 variants) | 482 |
| Niv-Mizzet, Visionary (12 variants) | 350 |
| Nullpriest of Oblivion | 611 |
| Obliterating Bolt | 629 |
| Offer Immortality (6 variants) | 525 |
| Omniscience (12 variants) | 312 |
| Omniscience (12 variants) | 161 |
| Omniscience | 379 |
| Opt (6 variants) | 512 |
| Ordeal of Nylea | 641 |
| Orzhov Guildgate | 692 |
| Overrun (12 variants) | 230 |
| Ovika, Enigma Goliath | 663 |
| Pacifism (6 variants) | 501 |
| Painful Quandary (12 variants) | 179 |
| Pelakka Wurm | 720 |
| Pelakka Wurm | 765 |
| Perforating Artist (12 variants) | 124 |