| Mirrorpool (4 variants) | 1010 |
| Mizzix of the Izmagnus (12 variants) | 348 |
| Mizzix of the Izmagnus (7 variants) | 586 |
| Mobilized District (4 variants) | 1011 |
| Molimo, Maro-Sorcerer (12 variants) | 305 |
| Morophon, the Boundless (14 variants) | 3 |
| Morophon, the Boundless (5 variants) | 1058 |
| Morophon, the Boundless (7 variants) | 453 |
| Morophon, the Boundless (14 variants) | 669 |
| Mountain (4 variants) | 796 |
| Mountain (14 variants) | 446 |
| Mountain (4 variants) | 795 |
| Mountain (14 variants) | 447 |
| Mountain (14 variants) | 448 |
| Mountain (4 variants) | 794 |
| Mountain Valley (4 variants) | 1012 |
| Mowu, Loyal Companion (12 variants) | 306 |
| Murder of Crows (14 variants) | 106 |
| Murmuring Mystic (14 variants) | 107 |
| Myr Sire (12 variants) | 400 |
| Myriad Construct (4 variants) | 963 |
| Myriad Landscape (12 variants) | 421 |
| Myriad Landscape (14 variants) | 660 |
| Myrsmith (14 variants) | 44 |
| Mystic Confluence (14 variants) | 108 |
| Mystic Confluence (7 variants) | 492 |
| Mystic Forge (4 variants) | 964 |
| Mystic Gate (4 variants) | 1013 |
| Mystic Monastery (4 variants) | 1014 |
| Nadier's Nightblade (14 variants) | 641 |
| Nadier's Nightblade (14 variants) | 175 |
| Nahiri, the Harbinger (4 variants) | 929 |
| Nahiri, the Lithomancer (14 variants) | 45 |
| Nahiri, the Lithomancer (7 variants) | 467 |
| Narci, Fable Singer (10 variants) | 775 |
| Narci, Fable Singer (4 variants) | 710 |
| Narset of the Ancient Way (4 variants) | 930 |
| Narset, Enlightened Master (4 variants) | 931 |
| Narset, Parter of Veils (4 variants) | 853 |
| Nature's Lore (4 variants) | 904 |
| Necroblossom Snarl (4 variants) | 1015 |
| Necrotic Sliver (4 variants) | 932 |
| Neheb, the Eternal (12 variants) | 244 |
| Neheb, the Eternal (5 variants) | 1062 |
| Neheb, the Eternal (14 variants) | 678 |
| Neheb, the Eternal (7 variants) | 545 |
| Nekusar, the Mindrazer (12 variants) | 349 |
| Nekusar, the Mindrazer (7 variants) | 587 |
| Nemata, Grove Guardian (12 variants) | 307 |
| Nessian Wanderer (4 variants) | 905 |