| Metallic Leomech | 53 | 11,239 | 465 | — |
| Metaljaw Lionturtle | 5 | 245 | 45 | — |
| Metal Jackaleopardite | 150 | 14,199 | 763 | |
| Messenger of Fear | 150 | 719,416 | 789 | |
| Messenger of Fear | 150 | 6,096,993 | 798 | |
| Messenger of Fear | 150 | 4,877,594 | 798 | |
| Messenger of Fear | 150 | 1,463,278 | 92,849 | — |
| Messenger of Aeolia | 87 | 36,944 | 917 | |
| Messenger of Aeolia | 87 | 153,935 | 3,823 | |
| Messenger of Aeolia | 89 | 174,805 | 1 | |
| Mesozoic Firedrake | 35 | 4,849 | 309 | — |
| Merman Weaver | 60 | 55,851 | 1,533 | — |
| Mermaiden Rustler | 57 | 10,416 | 581 | |
| Merchant | 60 | 100,000,000 | 1 | — |
| Memoir: Wu | 93 | 300,000 | 3,248 | — |
| Memoir: Ti | 93 | 300,000 | 3,248 | — |
| Memoir: Ta | 93 | 300,000 | 3,248 | — |
| Memoir: Shang | 93 | 300,000 | 3,248 | — |
| Memoir: Pu | 93 | 300,000 | 3,248 | — |
| Memoir: Po | 93 | 300,000 | 3,248 | — |
| Memoir: Kun | 93 | 300,000 | 3,248 | — |
| Memoir: Ku | 93 | 300,000 | 3,248 | — |
| Melancholic Scorpion King | 29 | 4,333 | 252 | |
| Melancholic Scorpion | 26 | 3,557 | 227 | |
| Meed Apostle | 93 | 48,311 | 1,076 | |
| Mechanic Pterosaur | 41 | 6,365 | 439 | |
| Mastiff of the Great Divide | 43 | 6,848 | 379 | |
| Massaca Seben: Mirror | 150 | 520,973 | 836 | |
| Massaca Seben | 150 | 2,408,753 | 845 | — |
| Massaca Seben | 150 | 264,716 | 845 | — |
| Marshal: Dismal Duke | 150 | 16,000,000 | 1,232 | |
| Marine Mantis | 31 | 3,908 | 274 | — |
| Mantis Widow | 45 | 7,573 | 399 | — |
| Mantis Banshee | 19 | 2,299 | 166 | |
| Mantavip Javeliner | 60 | 14,133 | 607 | — |
| Mantavip Hexxer | 86 | 30,124 | 792 | — |
| Malicious Jackaleopardite | 26 | 3,557 | 229 | — |
| Malicious Cadevil | 85 | 29,469 | 749 | |
| Malefic Towerling | 90 | 233,357 | 2,460 | — |
| Malefic Phong | 88 | 141,452 | 2,415 | |
| Malefic Penetrator | 102 | 275,417 | 2,891 | |
| Magus of the Plume | 118 | 348,599 | 1,139 | |
| Magmamare | 85 | 1,000,000 | 1,793 | — |
| Mad Wolfling | 2 | 71 | 15 | |
| Machinoslitt | 150 | 23,977,103 | 875 | — |
| Lynxus Vassal | 14 | 1,238 | 122 | |
| Lyncean King Hunter | 22 | 2,808 | 190 | — |
| Lyncean Hunter | 21 | 2,633 | 182 | |
| Lusting Cactopod | 38 | 6,098 | 334 | — |
| Lupine Guard | 35 | 5,926 | 306 | — |