| Make a Stand | OGW-26 |
| Majestic Metamorphosis | SNC-48 |
| Maja, Bretagard Protector | KHM-222 |
| Mahamoti Djinn | IMA-64 |
| Magus of the Vineyard | FUT-132 |
| Magus of the Moon | FUT-101 |
| Magus of the Moat | FUT-12 |
| Magnigoth Treefolk | PLS-82 |
| Magmaw | UMA-138 |
| Magmatic Insight | ORI-155 |
| Magmatic Force | CMD-128 |
| Magma Spray | AKH-141 |
| Magic Missile | AFR-154 |
| Magewright's Stone | DIS-162 |
| Mages' Contest | INV-154 |
| Magda, Brazen Outlaw | KHM-142 |
| Maelstrom Nexus (2 variants) | ARB-130 |
| Maelstrom Archangel | CON-115 |
| Madcap Skills | MM3-99 |
| Mad Ratter | ELD-130 |
| Mad Auntie | MMA-90 |
| Macabre Waltz | SOI-121 |
| Lurking Predators | M10-190 |
| Lure | IMA-175 |
| Lunarch Mantle | A25-24 |
| Lunar Frenzy | MID-147 |
| Lunar Avenger | 5DN-136 |
| Lumithread Field | FUT-25 |
| Lukka, Wayward Bonder Emblem | TSTX-8 |
| Lukka, Coppercoat Outcast | IKO-125 |
| Ludevic, Necrogenius // Olag, Ludevic's Hubris | MID-233 |
| Lucky Clover | ELD-226 |
| Loyal Warhound | AFR-23 |
| Loyal Unicorn | C18-4 |
| Loyal Sentry | A25-22 |
| Loyal Apprentice | C18-23 |
| Loxodon Warhammer | C17-216 |
| Loxodon Partisan | DDO-17 |
| Loxodon Gatekeeper | RAV-25 |
| Lovisa Coldeyes | CSP-90 |
| Lotus-Eye Mystics | UMA-23 |
| Lotus Petal | TMP-294 |
| Lotus Bloom | TSP-259 |
| Lose Hope | 5DN-52 |
| Lorthos, the Tidemaker | ZEN-53 |
| Lord of the Undead | PLS-44 |
| Lord of the Accursed | AKH-99 |
| Looter il-Kor | TSP-66 |
| Looming Altisaur | XLN-23 |
| Lonis, Cryptozoologist | MH2-204 |