| 227 | Matsu-Tribe Decoy | Alan Pollack | Green | C | Champions of Kamigawa |
| 136 | Matsu-Tribe Sniper | Carl Critchlow | Green | C | Betrayers of Kamigawa |
| 6 | Matter Reshaper | Chris Rahn | | R | Oath of the Gatewatch |
| 806 | Matter Reshaper | Chris Rahn | | R | Commander Masters |
| 256 | Matzalantli, the Great Door | Piotr Dura | | R | The Lost Caverns of Ixalan |
| 387 | Matzalantli, the Great Door | Piotr Dura | | R | The Lost Caverns of Ixalan |
| 214 | Mauhúr, Uruk-hai Captain | Javier Charro | Black/Red | U | The Lord of the Rings: Tales of Middle Earth |
| 665 | Mauhúr, Uruk-hai Captain | Javier Charro | Black/Red | U | The Lord of the Rings: Tales of Middle Earth |
| 27 | Maul of the Skyclaves | Joseph Meehan | White | R | Zendikar Rising |
| 80 | Maul of the Skyclaves | Joseph Meehan | White | R | Phyrexia: All Will Be One Commander |
| 195 | Maul of the Skyclaves | Joseph Meehan | White | R | March of the Machine Commander |
| 320 | Maul of the Skyclaves | Joseph Meehan | White | R | Zendikar Rising |
| 114 | Maul Splicer | Jason Chan | Green | C | New Phyrexia |
| 123 | Maulfist Doorbuster | Josh Hass | Red | U | Kaladesh |
| 115 | Maulfist Revolutionary | Scott Murphy | Green | U | Aether Revolt |
| 168 | Maulfist Revolutionary | Scott Murphy | Green | U | Kaladesh Remastered |
| 91 | Maulfist Squad | Matt Stewart | Black | C | Kaladesh |
| 99 | Maulfist Squad | Matt Stewart | Black | C | Kaladesh Remastered |
| 13 | Mausoleum Guard | David Palumbo | White | U | Duel Decks: Sorin vs. Tibalt |
| 20 | Mausoleum Guard | David Palumbo | White | U | Innistrad |
| 213 | Mausoleum Guard | David Palumbo | White | U | Jumpstart 2022 |
| 78 | Mausoleum Harpy | Randy Vargas | Black | U | Rivals of Ixalan |
| 75 | Mausoleum Secrets | Adam Paquette | Black | R | Guilds of Ravnica |
| 84 | Mausoleum Turnkey | Darrell Riche | Black | U | Ravnica Remastered |
| 94 | Mausoleum Turnkey | Darrell Riche | Black | U | Ravnica: City of Guilds |
| 116 | Mausoleum Turnkey | Darrell Riche | Black | U | Ravnica Clue Edition |
| 142 | Mausoleum Turnkey | Darrell Riche | Black | U | Conspiracy: Take the Crown |
| 255 | Mausoleum Turnkey | Darrell Riche | Black | U | Jumpstart |
| 69 | Mausoleum Wanderer | Kieran Yanner | Blue | R | Eldritch Moon |
| 81 | Mausoleum Wanderer | Kieran Yanner | Blue | R | Shadows Over Innistrad Remastered |
| 50 | Maverick Thopterist | Zack Stella | Blue/Red | U | Duel Decks: Elves vs. Inventors |
| 130 | Maverick Thopterist | Zack Stella | Blue/Red | U | Aether Revolt |
| 185 | Maverick Thopterist | Zack Stella | Blue/Red | U | Commander 2018 |
| 199 | Maverick Thopterist | Zack Stella | Blue/Red | U | Kaladesh Remastered |
| 21 | Mavinda, Students' Advocate | Wesley Burt | White | M | Strixhaven: School of Mages |
| 291 | Mavinda, Students' Advocate | Wesley Burt | White | M | Strixhaven: School of Mages |
| 24 | Mavren Fein, Dusk Apostle | Daarken | White | R | Ixalan |
| 133 | Mavren Fein, Dusk Apostle | Daarken | White | R | The Lost Caverns of Ixalan Commander |
| 99 | Maw of Kozilek | Daarken | Red | C | Oath of the Gatewatch |
| 108 | Maw of the Mire | Vincent Proce | Black | C | Innistrad |
| 83 | Maw of the Obzedat | Randy Gallegos | White/Black | U | Dragon's Maze |
| Mawcor | John Matson | Blue | R | Tempest |
| 59 | Mawcor | John Matson | Blue | R | Tempest Remastered |
| 87 | Mawcor | Kev Walker | Blue | R | Seventh Edition |
| 133 | Mawloc | Mathias Kollros | Red/Green | R | Warhammer 40,000 Commander |
| 43 | Maximize Altitude | Mike Bierek | Blue | C | Guilds of Ravnica |
| 111 | Maximize Velocity | Svetlin Velinov | Red | C | Guilds of Ravnica |
| 179 | Mayael the Anima | Jason Chan | White/Red/Green | M | Shards of Alara |
| 199 | Mayael the Anima | Jason Chan | White/Red/Green | M | Commander 2013 Edition |
| 121 | Mayael's Aria | Steve Argyle | White/Red/Green | R | Alara Reborn |
| 253 | Mayael's Aria | Steve Argyle | White/Red/Green | R | Double Masters 2022 |
| 524 | Mayael's Aria | Steve Argyle | White/Red/Green | R | Double Masters 2022 |
| 199 | Mayhem Devil | Dmitry Burmak | Black/Red | U | Ravnica Remastered |
| 204 | Mayhem Devil | Dmitry Burmak | Black/Red | U | War of the Spark |
| 225 | Mayhem Devil | Dmitry Burmak | Black/Red | U | Duskmourn: House of Horror Commander |
| 374 | Mayhem Devil | Dmitry Burmak | Black/Red | U | Ravnica Remastered |
| 114 | Mayhem Patrol | Johan Grenier | Red | C | Streets of New Capenna |
| 53 | Mayor of Avabruck | Svetlin Velinov | Green | R | Shadows of the Past |
| 77 | Mayor of Avabruck | Ryan Pancoast | Green | R | Shadows of the Past |
| 193 | Mayor of Avabruck | Svetlin Velinov | Green | R | Innistrad |
| 26 | Maze Abomination | Yeong-Hao Han | Black | C | Dragon's Maze |
| 43 | Maze Behemoth | Yeong-Hao Han | Green | C | Dragon's Maze |
| 13 | Maze Glider | Yeong-Hao Han | Blue | C | Dragon's Maze |
| Maze of Ith | Anson Maddocks | | U | The Dark |
| 10 | Maze of Ith | Yeong-Hao Han | | M | From the Vault: Realms |
| 241 | Maze of Ith | Yeong-Hao Han | | R | Eternal Masters |
| 246 | Maze of Ith | Anson Maddocks | | R | Masters Edition IV |
| 250 | Maze of Ith | Yeong-Hao Han | | R | Dominaria Remastered |
| 322 | Maze of Ith | Yeong-Hao Han | | R | Double Masters |
| 398 | Maze of Ith | Yeong-Hao Han | | R | Dominaria Remastered |
| 456 | Maze of Ith | Mark Tedin | | R | Dominaria Remastered |
| Maze of Shadows | D. Alexander Gregory | | U | Tempest |
| 238 | Maze of Shadows | D. Alexander Gregory | | U | Tempest Remastered |
| 33 | Maze Rusher | Yeong-Hao Han | Red | C | Dragon's Maze |
| 4 | Maze Sentinel | Yeong-Hao Han | White | C | Dragon's Maze |
| 231 | Maze Skullbomb | Matt Forsyth | | C | Phyrexia: All Will Be One |
| 30 | Mazemind Tome | Randy Gallegos | | R | The Brothers' War Retro Artifacts |
| 93 | Mazemind Tome | Randy Gallegos | | R | The Brothers' War Retro Artifacts |
| 232 | Mazemind Tome | Randy Gallegos | | R | Core Set 2021 |
| 383 | Mazemind Tome | Randy Gallegos | | R | Core Set 2021 |
| 959 | Mazemind Tome | Randy Gallegos | | R | Commander Masters |
| 27 | Maze's End | Cliff Childs | | M | Historic Anthology 3 |
| 152 | Maze's End | Cliff Childs | | M | Dragon's Maze |
| 465 | Maze's End | Cliff Childs | | M | Ravnica Remastered |
| 174 | Maze's Mantle | L.A draws | Green | C | Phyrexia: All Will Be One |
| 48 | Mazirek, Kraul Death Priest | Mathias Kollros | Black/Green | M | Commander 2015 |
| 185 | Mazirek, Kraul Death Priest | Mathias Kollros | Black/Green | M | Commander Anthology |
| 209 | Mazirek, Kraul Death Priest | Mathias Kollros | Black/Green | R | Double Masters |
| 241 | Mazzy, Truesword Paladin | Justyna Dura | White/Red/Green | R | Alchemy Horizons: Baldur's Gate |
| 281 | Mazzy, Truesword Paladin | Diesel | White/Red/Green | R | Alchemy Horizons: Baldur's Gate |
| 283 | Mazzy, Truesword Paladin | Justyna Gil | White/Red/Green | R | Commander Legends: Battle for Baldur's Gate |
| 430 | Mazzy, Truesword Paladin | Diesel | White/Red/Green | R | Commander Legends: Battle for Baldur's Gate |
| 147 | Me, the Immortal | Yuliya Litvinova | Blue/Red/Green | R | Doctor Who Commander |
| 430 | Me, the Immortal | Yuliya Litvinova | Blue/Red/Green | R | Doctor Who Commander |
| 17 | Meadowboon | Steven Belledin | White | U | Morningtide |
| 22 | Meadowboon | Steven Belledin | White | U | Modern Masters |
| 19 | Meandering River | Gaga Zeng | | C | Global Series: Jiang Yanggu and Mu Yanling |
| 114 | Meandering River | Cliff Childs | | C | Kaldheim Commander |
| 173 | Meandering River | Cliff Childs | | U | Oath of the Gatewatch |
| 253 | Meandering River | Cliff Childs | | C | Core Set 2019 |
| 265 | Meandering River | Cliff Childs | | U | Commander 2018 |
| 274 | Meandering River | James Paick | | C | Dominaria |
| 283 | Meandering River | Cliff Childs | | C | Amonkhet |
| 141 | Meandering Towershell | YW Tang | Green | R | Khans of Tarkir |
| 82 | Measure of Wickedness | Daren Bader | Black | U | Saviors of Kamigawa |
| 65 | Meat Locker | Sergey Glushakov | Blue | C | Duskmourn: House of Horror |
| 108 | Meathook Massacre II | Tiffany Turrill | Black | M | Duskmourn: House of Horror |
| 293 | Meathook Massacre II | Tiffany Turrill | Black | M | Duskmourn: House of Horror |
| 311 | Meathook Massacre II | SchmandrewART | Black | M | Duskmourn: House of Horror |
| 270 | Mech Hangar | Julian Kok Joon Wen | | U | Kamigawa: Neon Dynasty |
| 38 | Mechanized Production | Adam Paquette | Blue | M | Aether Revolt |
| 109 | Mechanized Production | Adam Paquette | Blue | M | Murders at Karlov Manor Commander |
| 178 | Mechanized Production | Brian Valeza | Blue | M | Magic The Gathering—Fallout |
| 320 | Mechanized Production | Adam Paquette | Blue | M | Jumpstart 2022 |
| 461 | Mechanized Production | Brian Valeza | Blue | M | Magic The Gathering—Fallout |
| 139 | Mechanized Warfare | Robin Olausson | Red | R | The Brothers' War |
| 338 | Mechanized Warfare | Robin Olausson | Red | R | The Brothers' War |
| 249 | Mechtitan Core | Victor Adame Minguez | | R | Kamigawa: Neon Dynasty |
| 402 | Mechtitan Core | 森下直親/NAOCHIKA MORISHITA | | R | Kamigawa: Neon Dynasty |
| 497 | Mechtitan Core | Victor Adame Minguez | | R | Kamigawa: Neon Dynasty |
| Meddle | Brian Snoddy | Blue | U | Mirage |
| 92 | Meddle | Brian Snoddy | Blue | U | Onslaught |
| 118 | Meddling Kids | Christopher Moeller | White/Blue | R | Unhinged |
| 8 | Meddling Mage | Todd Lockwood | White/Blue | R | Alara Reborn |
| 17 | Meddling Mage | Todd Lockwood | White/Blue | R | Historic Anthology 2 |
| 116 | Meddling Mage | Christopher Moeller | White/Blue | R | Planeshift |
| 210 | Meddling Mage | Todd Lockwood | White/Blue | R | Double Masters |
| 355 | Meddling Mage | Jeff Simpson | White/Blue | R | Double Masters |
| 219 | Meddling Youths | Matt Forsyth | White/Red | U | Murders at Karlov Manor |
| 367 | Meddling Youths | Jack Hughes | White/Red | U | Murders at Karlov Manor |
| 133 | Medicine Bag | DiTerlizzi | | U | Exodus |
| 230 | Medicine Runner | Chippy | White/Green | C | Shadowmoor |
| Meditate | Susan Van Camp | Blue | R | Tempest |
| 60 | Meditate | Susan Van Camp | Blue | R | Tempest Remastered |
| 19 | Meditation Puzzle | Mark Winters | White | C | Magic 2015 Core Set |
| 196 | Medomai the Ageless | David Palumbo | White/Blue | M | Theros |
| 53 | Medomai's Prophecy | Seb McKinnon | Blue | U | Theros Beyond Death |
| Meekstone | Quinton Hoover | | R | Fifth Edition |
| Meekstone | Quinton Hoover | | R | Fourth Edition |
| Meekstone | Quinton Hoover | | R | Revised Edition |
| Meekstone | Quinton Hoover | | R | Unlimited Edition |
| Meekstone | Quinton Hoover | | R | Limited Edition Beta |
| Meekstone | Quinton Hoover | | R | Limited Edition Alpha |
| 40 | Meekstone | Steve Argyle | | S | Masterpiece Series: Kaladesh Inventions |
| 298 | Meekstone | Quinton Hoover | | R | Classic Sixth Edition |
| 307 | Meekstone | David Martin | | R | Seventh Edition |
| 66 | Meeting of Minds | Milivoj Ćeran | Blue | C | March of the Machine |
| 202 | Meeting of the Five | Dominik Mayer | White/Blue/Black/Red/Green | M | Streets of New Capenna |
| 436 | Meeting of the Five | Dominik Mayer | White/Blue/Black/Red/Green | M | Streets of New Capenna |
| 185 | Megantic Sliver | Ryan Barger | Green | R | Magic 2014 Core Set |
| 901 | Megantic Sliver | Campbell White | Green | R | Commander Masters |
| 259 | Megatherium | Paolo Parente | Green | R | Mercadian Masques |
| 100 | Megatog | Pete Venters | Red | R | Mirrodin |
| 61 | Megaton's Fate | Chris Cold | Red | R | Magic The Gathering—Fallout |
| 388 | Megaton's Fate | Chris Cold | Red | R | Magic The Gathering—Fallout |
| 12 | Megatron, Destructive Force | Volta Creation | White/Black/Red | M | The Brothers' War Transformers Cards |
| 26 | Megatron, Destructive Force | Volta Creation | White/Black/Red | M | The Brothers' War Transformers Cards |
| 12 | Megatron, Tyrant | Volta Creation | White/Black/Red | M | The Brothers' War Transformers Cards |
| 26 | Megatron, Tyrant | Volta Creation | White/Black/Red | M | The Brothers' War Transformers Cards |
| 118 | Meglonoth | Steve Prescott | White/Red/Green | R | Conflux |
| Megrim | Donato Giancola | Black | U | Stronghold |
| 104 | Megrim | Nick Percival | Black | U | Magic 2010 |
| 143 | Megrim | Peter Bollinger | Black | U | Eighth Edition |
| 144 | Megrim | Nick Percival | Black | U | Ninth Edition |
| 146 | Megrim | Peter Bollinger | Black | U | Seventh Edition |
| 157 | Megrim | Nick Percival | Black | U | Tenth Edition |
| 44 | Meishin, the Mind Cage | Thomas Gianni | Blue | R | Saviors of Kamigawa |
| 88 | Melancholy | Lars Grant-West | Black | C | Planar Chaos |
| 59 | Meldweb Curator | Pavel Kolomeyets | Blue | C | Phyrexia: All Will Be One |
| 60 | Meldweb Strider | Julian Kok Joon Wen | Blue | C | Phyrexia: All Will Be One |
| Melee | Dameon Willich | Red | U | Ice Age |
| 84 | Melek, Izzet Paragon | Jason Chan | Blue/Red | R | Dragon's Maze |
| 220 | Melek, Izzet Paragon | Jason Chan | Blue/Red | R | Ikoria Commander |
| 227 | Melek, Izzet Paragon | Jason Chan | Blue/Red | R | Commander 2015 |
| 345 | Melek, Izzet Paragon | Jason Chan | Blue/Red | U | Commander Masters |
| 430 | Melek, Reforged Researcher | Andreas Zafiratos | Blue/Red | M | Murders at Karlov Manor |
| Melesse Spirit | Gerry Grace | White | U | Mirage |
| 43 | Meletis Astronomer | Dan Scott | Blue | U | Born of the Gods |
| 54 | Meletis Charlatan | Jason A. Engle | Blue | R | Theros |
| 115 | Melira, Sylvok Outcast | Min Yum | Green | R | New Phyrexia |
| 209 | Melira, the Living Cure | Miranda Meeks | White/Green | R | Phyrexia: All Will Be One |
| 333 | Melira, the Living Cure | 荒巻美由希/Aramaki Miyuki | White/Green | R | Phyrexia: All Will Be One |
| 83 | Melira's Keepers | Eric Deschamps | Green | U | Mirrodin Besieged |
| 52 | Meloku the Clouded Mirror | Scott M. Fischer | Blue | R | Modern Masters |
| 74 | Meloku the Clouded Mirror | Scott M. Fischer | Blue | R | Champions of Kamigawa |
| 399 | Meloku the Clouded Mirror | Scott M. Fischer | Blue | R | Commander Legends |
| 97 | Melt Terrain | John Avon | Red | C | Scars of Mirrodin |
| 203 | Meltdown | Donato Giancola | Red | U | Urza's Saga |
| 282 | Meltdown | Donato Giancola | Red | U | Modern Horizons 3 |
| 418 | Meltdown | Donato Giancola | Red | U | Modern Horizons 3 |
| Melting | Randy Gallegos | Red | U | Ice Age |
| 7 | Memnarch | Carl Critchlow | | M | From the Vault: Lore |
| 112 | Memnarch | Carl Critchlow | | R | Archenemy |
| 129 | Memnarch | Carl Critchlow | | R | Darksteel |
| 174 | Memnite | Svetlin Velinov | | U | Scars of Mirrodin |
| 242 | Memorial to Folly | Sung Choi | | U | Dominaria |
| 259 | Memorial to Folly | Sung Choi | | U | Commander 2019 |
| 288 | Memorial to Folly | Sung Choi | | U | Ikoria Commander |
| 243 | Memorial to Genius | James Paick | | U | Dominaria |
| 301 | Memorial to Genius | James Paick | | U | Commander 2021 |
| 485 | Memorial to Genius | James Paick | | U | Commander Legends |
| 815 | Memorial to Genius | James Paick | | U | Jumpstart 2022 |
| 244 | Memorial to Glory | James Paick | | U | Dominaria |
| 271 | Memorial to Glory | Kim Sokol | | U | Magic The Gathering—Fallout |
| 283 | Memorial to Glory | Games Workshop | | U | Warhammer 40,000 Commander |
| 245 | Memorial to Unity | Cliff Childs | | U | Dominaria |
| 246 | Memorial to War | Richard Wright | | U | Dominaria |
| 486 | Memorial to War | Richard Wright | | U | Commander Legends |
| 69 | Memoricide | James Ryman | Black | R | Scars of Mirrodin |