| Mountain | 503 |
| Mountain | 504 |
| Mountain (16 variants) | 307 |
| Mountain (16 variants) | 317 |
| Monumental Henge (16 variants) | 354 |
| Monumental Henge (16 variants) | 222 |
| Monstrous Vortex (16 variants) | 427 |
| Monstrous Vortex (16 variants) | 162 |
| Molten Gatekeeper (16 variants) | 128 |
| Mogg Mob (16 variants) | 127 |
| Mindless Conscription (16 variants) | 101 |
| Meteoric Mace (16 variants) | 283 |
| Metastatic Evangel (16 variants) | 393 |
| Metastatic Evangel (16 variants) | 35 |
| Meltdown (16 variants) | 418 |
| Meltdown (16 variants) | 282 |
| Marionette Apprentice (16 variants) | 410 |
| Marionette Apprentice (16 variants) | 100 |
| Mandibular Kite (16 variants) | 34 |
| Malevolent Rumble (16 variants) | 161 |
| Lion Umbra (16 variants) | 160 |
| Lion Umbra (16 variants) | 426 |
| Lethal Throwdown (16 variants) | 99 |
| Legion Leadership // Legion Stronghold (16 variants) | 255 |
| Laelia, the Blade Reforged (16 variants) | 281 |
| Laelia, the Blade Reforged (5 variants) | 482 |
| Laelia, the Blade Reforged (16 variants) | 368 |
| Kudo, King Among Bears (16 variants) | 432 |
| Kudo, King Among Bears (16 variants) | 376 |
| Kudo, King Among Bears (16 variants) | 192 |
| Kudo, King Among Bears (5 variants) | 490 |
| Kozilek's Unsealing (16 variants) | 65 |
| Kozilek's Command (16 variants) | 11 |
| Kozilek, the Broken Reality | 382z |
| Kozilek, the Broken Reality (5 variants) | 475 |
| Kozilek, the Broken Reality (16 variants) | 386 |
| Kozilek, the Broken Reality (16 variants) | 10 |
| Kozilek, the Broken Reality (16 variants) | 382 |
| Kappa Cannoneer (16 variants) | 401 |
| Kappa Cannoneer (16 variants) | 270 |
| Kami of Jealous Thirst (16 variants) | 98 |
| Kaalia of the Vast (5 variants) | 489 |
| Kaalia of the Vast (16 variants) | 290 |
| Kaalia of the Vast (16 variants) | 343 |
| Kaalia of the Vast (16 variants) | 375 |
| K'rrik, Son of Yawgmoth (16 variants) | 365 |
| K'rrik, Son of Yawgmoth (16 variants) | 274 |
| K'rrik, Son of Yawgmoth (5 variants) | 479 |
| Junk Diver (16 variants) | 293 |
| Jolted Awake (16 variants) | 392 |