| Mortivore | 161★ |
| Mortivore (9 variants) | 161 |
| Mortal Combat (18 variants) | 160 |
| Molimo, Maro-Sorcerer (9 variants) | 280 |
| Molimo, Maro-Sorcerer | 280★ |
| Mogg Fanatic (18 variants) | 219 |
| Mobilization | 29★ |
| Mobilization (9 variants) | 29 |
| Mirri, Cat Warrior (9 variants) | 279 |
| Mirri, Cat Warrior | 279★ |
| Mind Stone (18 variants) | 335 |
| Mind Rot (18 variants) | 159 |
| Mind Bend | 93★ |
| Mind Bend (9 variants) | 93 |
| Millstone (18 variants) | 334 |
| Might Weaver (9 variants) | 278 |
| Might Weaver | 278★ |
| Might of Oaks (18 variants) | 277 |
| Midnight Ritual (18 variants) | 158 |
| Merfolk Looter (18 variants) | 92 |
| Megrim (18 variants) | 157 |
| Mass of Ghouls (18 variants) | 156 |
| March of the Machines | 91★ |
| March of the Machines (9 variants) | 91 |
| Mantis Engine (9 variants) | 333 |
| Mantis Engine | 333★ |
| Manabarbs (18 variants) | 218 |
| Mahamoti Djinn (9 variants) | 90 |
| Mahamoti Djinn | 90★ |
| Lure (9 variants) | 276 |
| Lure | 276★ |
| Luminesce (18 variants) | 28 |
| Lumengrid Warden (18 variants) | 89 |
| Loyal Sentry (18 variants) | 27 |
| Loxodon Warhammer (9 variants) | 332 |
| Loxodon Warhammer | 332★ |
| Loxodon Mystic (18 variants) | 26 |
| Lord of the Undead (18 variants) | 155 |
| Lord of the Pit (9 variants) | 154 |
| Lord of the Pit | 154★ |
| Looming Shade (18 variants) | 153 |
| Llanowar Wastes (18 variants) | 355 |
| Llanowar Sentinel (18 variants) | 275 |
| Llanowar Elves (18 variants) | 274 |
| Lightning Elemental | 217★ |
| Lightning Elemental (9 variants) | 217 |
| Leonin Scimitar | 331★ |
| Leonin Scimitar (9 variants) | 331 |
| Legacy Weapon (18 variants) | 330 |
| Lavaborn Muse (18 variants) | 216 |