| Orzhov Basilica (6 variants) | 311 |
| Order of Succession (6 variants) | 52 |
| Opportunity (6 variants) | 51 |
| Ophiomancer (6 variants) | 84 |
| Opal Palace (6 variants) | 310 |
| One Dozen Eyes (6 variants) | 159 |
| Oloro, Ageless Ascetic (6 variants) | 203 |
| Obelisk of Jund (6 variants) | 252 |
| Obelisk of Grixis (6 variants) | 251 |
| Obelisk of Esper (6 variants) | 250 |
| Nivix Guildmage (6 variants) | 202 |
| Nihil Spellbomb (6 variants) | 249 |
| Nightscape Familiar (6 variants) | 83 |
| Night Soil (6 variants) | 158 |
| New Benalia (6 variants) | 309 |
| Nevinyrral's Disk (6 variants) | 248 |
| Nekusar, the Mindrazer (6 variants) | 201 |
| Naya Soulbeast (6 variants) | 157 |
| Naya Panorama (6 variants) | 308 |
| Naya Charm (6 variants) | 200 |
| Mystic Barrier (6 variants) | 18 |
| Myr Battlesphere (6 variants) | 247 |
| Murkfiend Liege (6 variants) | 231 |
| Mountain (6 variants) | 349 |
| Mountain (6 variants) | 352 |
| Mountain (6 variants) | 351 |
| Mountain (6 variants) | 350 |
| Mosswort Bridge (6 variants) | 307 |
| Molten Slagheap (6 variants) | 306 |
| Molten Disaster (6 variants) | 117 |
| Mold Shambler (6 variants) | 156 |
| Mnemonic Wall (6 variants) | 50 |
| Mistmeadow Witch (6 variants) | 230 |
| Mirror Entity (6 variants) | 17 |
| Mirari (6 variants) | 246 |
| Mayael the Anima (6 variants) | 199 |
| Mass Mutiny (6 variants) | 116 |
| Marrow Bats (6 variants) | 82 |
| Marath, Will of the Wild (6 variants) | 198 |
| Magus of the Arena (6 variants) | 115 |
| Lu Xun, Scholar General (6 variants) | 49 |
| Lonely Sandbar (6 variants) | 305 |
| Llanowar Reborn (6 variants) | 304 |
| Lim-Dûl's Vault (6 variants) | 197 |
| Leonin Bladetrap (6 variants) | 245 |
| Leafdrake Roost (6 variants) | 196 |
| Krosan Warchief (6 variants) | 155 |
| Krosan Tusker (6 variants) | 154 |
| Krosan Grip (6 variants) | 153 |
| Kongming, "Sleeping Dragon" (6 variants) | 16 |