| Mana Bloom (6 variants) | 275 |
| Mana Geyser (6 variants) | 247 |
| Manaform Hellkite (6 variants) | 248 |
| Mangara, the Diplomat (6 variants) | 155 |
| Martial Impetus (6 variants) | 156 |
| Mazirek, Kraul Death Priest | 319 |
| Merchant of Venom (4 variants) | 76 |
| Merchant of Venom (6 variants) | 27 |
| Millikin | 351 |
| Mind Stone | 352 |
| Mirrorwing Dragon (6 variants) | 249 |
| Mistveil Plains | 386 |
| Moldervine Reclamation | 320 |
| Molten Tributary | 387 |
| Monologue Tax (6 variants) | 157 |
| Moonshaker Cavalry (6 variants) | 110 |
| Morbid Opportunist (6 variants) | 219 |
| Mortality Spear | 321 |
| Muddle, the Ever-Changing (8 variants) | 5 |
| Mycoloth (6 variants) | 276 |
| Mystic Sanctuary | 388 |
| Naktamun Lorespinner // Wheel of Fortune (6 variants) | 33 |
| Naktamun Lorespinner // Wheel of Fortune (4 variants) | 81 |
| Nature's Lore (6 variants) | 278 |
| Necroblossom Snarl | 389 |
| Nether Traitor (6 variants) | 220 |
| Nev, the Practical Dean (4 variants) | 89 |
| Nev, the Practical Dean (6 variants) | 41 |
| Nexus Mentality (4 variants) | 71 |
| Nexus Mentality (6 variants) | 21 |
| Night's Whisper (6 variants) | 221 |
| Nils, Discipline Enforcer (6 variants) | 158 |
| Ohran Frostfang (6 variants) | 279 |
| Ominous Harvest (6 variants) | 28 |
| Ominous Harvest (4 variants) | 77 |
| Opal Palace | 390 |
| Open the Way (2 variants) | 280 |
| Ophiomancer (6 variants) | 118 |
| Oran-Rief, the Vastwood | 391 |
| Overflowing Basin | 392 |
| Oversimplify | 322 |
| Owlin Spiralmancer (4 variants) | 72 |
| Owlin Spiralmancer (6 variants) | 22 |
| Ozolith, the Shattered Spire (6 variants) | 281 |
| Parasitic Impetus (6 variants) | 222 |
| Patchwork Banner | 353 |
| Path of Ancestry | 393 |
| Path to Exile (6 variants) | 159 |
| Pawn of Ulamog (6 variants) | 223 |
| Pearl-Ear, Imperial Advisor (6 variants) | 160 |