| 112 | March of the Drowned | Ben Wootten | Black | C | Ixalan |
| 6 | March of the Machines | Ben Thompson | Blue | R | Archenemy |
| 42 | March of the Machines | Ben Thompson | Blue | R | Mirrodin |
| 91 | March of the Machines | Ben Thompson | Blue | R | Tenth Edition |
| 188 | March of the Multitudes | Zack Stella | White/Green | M | Guilds of Ravnica |
| 346 | March of the Multitudes | Zack Stella | White/Green | M | Streets of New Capenna Commander |
| 96 | March of the Returned | Mark Zug | Black | C | Theros |
| 111 | March of Wretched Sorrow | Tyler Jacobson | Black | R | Kamigawa: Neon Dynasty |
| 380 | March of Wretched Sorrow | 山宗/SANSYU | Black | R | Kamigawa: Neon Dynasty |
| 457 | March of Wretched Sorrow | Tyler Jacobson | Black | R | Kamigawa: Neon Dynasty |
| 220 | Marchesa, Dealer of Death | Ryan Pancoast | Blue/Black/Red | R | Outlaws of Thunder Junction |
| 357 | Marchesa, Dealer of Death | Ryan Pancoast | Blue/Black/Red | R | Outlaws of Thunder Junction |
| 114 | Marchesa, Resolute Monarch | Joshua Raphael | Black | R | March of the Machine |
| 49 | Marchesa, the Black Rose | Matt Stewart | Blue/Black/Red | M | Magic: The Gathering—Conspiracy |
| 177 | Marchesa, the Black Rose | Matt Stewart | Blue/Black/Red | M | Commander 2017 |
| 248 | Marchesa, the Black Rose | Matt Stewart | Blue/Black/Red | R | Double Masters 2022 |
| 256 | Marchesa, the Black Rose | Matt Stewart | Blue/Black/Red | M | Vintage Masters |
| 382 | Marchesa, the Black Rose | Richard Kane Ferguson | Blue/Black/Red | R | Double Masters 2022 |
| 520 | Marchesa, the Black Rose | Matt Stewart | Blue/Black/Red | R | Double Masters 2022 |
| 44 | Marchesa's Decree | Chris Rallis | Black | U | Conspiracy: Take the Crown |
| 21 | Marchesa's Emissary | Tyler Jacobson | Blue | C | Magic: The Gathering—Conspiracy |
| 22 | Marchesa's Infiltrator | Lucas Graciano | Blue | U | Magic: The Gathering—Conspiracy |
| 50 | Marchesa's Smuggler | Dan Scott | Blue/Red | U | Magic: The Gathering—Conspiracy |
| 321 | Marching Duodrone | Sean Murray | | C | Commander Legends: Battle for Baldur's Gate |
| 447 | Marching Duodrone | Jeff Miracola | | C | Commander Legends: Battle for Baldur's Gate |
| 109 | Marcus, Mutant Mayor | Josu Hernaiz | Blue/Green | R | Magic The Gathering—Fallout |
| 418 | Marcus, Mutant Mayor | Josu Hernaiz | Blue/Green | R | Magic The Gathering—Fallout |
| 185 | Mardu Ascendancy | Jason Chan | White/Black/Red | R | Khans of Tarkir |
| 224 | Mardu Banner | Daniel Ljunggren | | C | Khans of Tarkir |
| 115 | Mardu Blazebringer | Peter Mohrbacher | Red | U | Khans of Tarkir |
| 186 | Mardu Charm | Mathias Kollros | White/Black/Red | U | Khans of Tarkir |
| 16 | Mardu Hateblade | Ryan Alexander Lee | White | C | Khans of Tarkir |
| 13 | Mardu Heart-Piercer | Karl Kopinski | Red | U | Duel Decks: Speed vs. Cunning |
| 116 | Mardu Heart-Piercer | Karl Kopinski | Red | U | Khans of Tarkir |
| 572 | Mardu Heart-Piercer | Karl Kopinski | Red | U | Jumpstart 2022 |
| 17 | Mardu Hordechief | Torstein Nordstrand | White | C | Khans of Tarkir |
| 52 | Mardu Outrider | Evan Shipard | Black | R | Arena Base Set |
| 187 | Mardu Roughrider | Kev Walker | White/Black/Red | U | Khans of Tarkir |
| 107 | Mardu Runemark | Viktor Titov | Red | C | Fate Reforged |
| 108 | Mardu Scout | Zoltan Boros | Red | C | Fate Reforged |
| 74 | Mardu Shadowspear | Mark Poole | Black | U | Fate Reforged |
| 78 | Mardu Skullhunter | Jason Rainville | Black | C | Khans of Tarkir |
| 75 | Mardu Strike Leader | Jason Rainville | Black | R | Fate Reforged |
| 761 | Mardu Strike Leader | Jason Rainville | Black | R | Commander Legends: Battle for Baldur's Gate |
| 117 | Mardu Warshrieker | Yefim Kligerman | Red | C | Khans of Tarkir |
| 18 | Mardu Woe-Reaper | Willian Murai | White | U | Fate Reforged |
| Marhault Elsdragon | Mark Poole | Red/Green | U | Chronicles |
| Marhault Elsdragon | Mark Poole | Red/Green | U | Legends |
| 161 | Marhault Elsdragon | Mark Poole | Red/Green | U | Masters Edition III |
| 89 | Mari, the Killing Quill | Rob Rey | Black | R | Streets of New Capenna Commander |
| 97 | Mari, the Killing Quill | Rob Rey | Black | R | Streets of New Capenna Commander |
| 138 | Mari, the Killing Quill | Rob Rey | Black | R | Outlaws of Thunder Junction Commander |
| 221 | Marina Vendrell | Magali Villeneuve | White/Blue/Black/Red/Green | R | Duskmourn: House of Horror |
| 360 | Marina Vendrell | Jack Hughes | White/Blue/Black/Red/Green | R | Duskmourn: House of Horror |
| 64 | Marina Vendrell's Grimoire | Denys Tsiperko | Blue | R | Duskmourn: House of Horror |
| 308 | Marina Vendrell's Grimoire | Lenka Šimečková & Scott Okumura | Blue | R | Duskmourn: House of Horror |
| 100 | Marionette Apprentice | Steve Ellis | Black | U | Modern Horizons 3 |
| 410 | Marionette Apprentice | Steve Ellis | Black | U | Modern Horizons 3 |
| 90 | Marionette Master | James Ryman | Black | R | Kaladesh |
| 98 | Marionette Master | James Ryman | Black | R | Kaladesh Remastered |
| 102 | Marionette Master | James Ryman | Black | R | Adventures in the Forgotten Realms Commander |
| 109 | Marionette Master | James Ryman | Black | R | The Brothers' War Commander |
| 151 | Mariposa Military Base | Alexander Forssberg | | R | Magic The Gathering—Fallout |
| 443 | Mariposa Military Base | Alexander Forssberg | | R | Magic The Gathering—Fallout |
| 46 | Marisi, Breaker of the Coil | Rudy Siswanto | White/Red/Green | M | Commander 2019 |
| 17 | Marisi's Twinclaws | Izzy | White/Red/Green | U | Duel Decks: Ajani vs. Nicol Bolas |
| 140 | Marisi's Twinclaws | Izzy | White/Red/Green | U | Alara Reborn |
| 6 | Marit Lage's Slumber | Randy Vargas | Blue | R | Historic Anthology 4 |
| 56 | Marit Lage's Slumber | Randy Vargas | Blue | R | Modern Horizons |
| 319 | Marit Lage's Slumber | Randy Vargas | Blue | R | Jumpstart 2022 |
| 63 | Maritime Guard | Allen Williams | Blue | C | Magic Origins |
| 63 | Maritime Guard | Allen Williams | Blue | C | Magic 2011 |
| Marjhan | Daniel Gelon | Blue | R | Homelands |
| 54 | Marjhan | Daniel Gelon | Blue | R | Masters Edition II |
| 99 | Mark for Death | Mathias Kollros | Red | U | Gatecrash |
| 10 | Mark of Asylum | Sal Villagran | White | R | Conflux |
| 58 | Mark of Eviction | Tsutomu Kawade | Blue | U | Ravnica: City of Guilds |
| 93 | Mark of Fury | Thomas M. Baxa | Red | C | Urza's Destiny |
| 47 | Mark of Mutiny | Mike Bierek | Red | U | Planechase Anthology |
| 47 | Mark of Mutiny | Mike Bierek | Red | U | Planechase 2012 Edition |
| 137 | Mark of Mutiny | Mike Bierek | Red | U | Zendikar |
| 139 | Mark of Mutiny | Mike Bierek | Red | C | Iconic Masters |
| 141 | Mark of Mutiny | Mike Bierek | Red | U | Magic 2013 |
| 135 | Mark of Sakiko | Alex Horley-Orlandelli | Green | U | Betrayers of Kamigawa |
| 73 | Mark of the Oni | Heather Hudson | Black | U | Betrayers of Kamigawa |
| 29 | Mark of the Vampire | Winona Nelson | Black | C | Duel Decks: Sorin vs. Tibalt |
| 99 | Mark of the Vampire | Winona Nelson | Black | C | Magic 2013 |
| 105 | Mark of the Vampire | Winona Nelson | Black | C | Ultimate Masters |
| 105 | Mark of the Vampire | Winona Nelson | Black | C | Magic 2014 Core Set |
| 113 | Mark of the Vampire | Yongjae Choi | Black | C | Ixalan |
| 254 | Mark of the Vampire | Winona Nelson | Black | C | Jumpstart |
| 2 | Marked by Honor | David Palumbo | White | C | Welcome Deck 2016 |
| 17 | Marked by Honor | David Palumbo | White | C | Magic 2015 Core Set |
| 112 | Marker Beetles | Ron Spencer | Green | C | Urza's Destiny |
| 148 | Market | Victor Adame Minguez | Blue | U | Hour of Devastation |
| 192 | Market | Victor Adame Minguez | Blue | U | Commander 2019 |
| 236 | Market | Victor Adame Minguez | Blue | U | Amonkhet Remastered |
| 130 | Market Festival | Ryan Barger | Green | C | Journey into Nyx |
| 22 | Market Gnome | Gaboleps | White | U | The Lost Caverns of Ixalan |
| 24 | Marketwatch Phantom | Bram Sels | White | C | Murders at Karlov Manor |
| 14 | Markov Baron | Ina Wong | Black | U | March of the Machine: The Aftermath |
| 64 | Markov Baron | Xiaobotong | Black | U | March of the Machine: The Aftermath |
| 114 | Markov Baron | Ina Wong | Black | U | March of the Machine: The Aftermath |
| 198 | Markov Baron | Xiaobotong | Black | U | March of the Machine: The Aftermath |
| 96 | Markov Blademaster | Jana Schirmer & Johannes Voss | Red | R | Dark Ascension |
| 95 | Markov Crusader | Johannes Voss | Black | U | Eldritch Moon |
| 108 | Markov Crusader | Johannes Voss | Black | U | Jumpstart: Historic Horizons |
| 122 | Markov Dreadknight | Darek Zabrocki | Black | R | Shadows over Innistrad |
| 26 | Markov Enforcer | Wisnu Tan | Red | R | Innistrad: Crimson Vow Commander |
| 64 | Markov Enforcer | Wisnu Tan | Red | R | Innistrad: Crimson Vow Commander |
| 107 | Markov Patrician | Jana Schirmer & Johannes Voss | Black | C | Innistrad |
| 241 | Markov Purifier | G-host Lee | White/Black | U | Innistrad: Crimson Vow |
| 312 | Markov Purifier | Samuel Araya | White/Black | U | Innistrad: Crimson Vow |
| 171 | Markov Retribution | Uriah Voth | Red | U | Innistrad: Crimson Vow |
| 242 | Markov Waltzer | Joshua Raphael | White/Red | U | Innistrad: Crimson Vow |
| 313 | Markov Waltzer | Jason A. Engle | White/Red | U | Innistrad: Crimson Vow |
| 97 | Markov Warlord | Cynthia Sheppard | Red | U | Dark Ascension |
| 573 | Markov Warlord | Cynthia Sheppard | Red | U | Jumpstart 2022 |
| 55 | Markov's Servant | Steve Argyle | Black | C | Dark Ascension |
| 175 | Marneus Calgar | Slawomir Maniak | White/Blue/Black | M | Warhammer 40,000 Commander |
| Maro | Stuart Griffin | Green | R | Mirage |
| 241 | Maro | Stuart Griffin | Green | R | Classic Sixth Edition |
| 254 | Maro | Stuart Griffin | Green | R | Ninth Edition |
| 256 | Maro | Pete Venters | Green | R | Seventh Edition |
| 264 | Maro | Stuart Griffin | Green | R | Eighth Edition |
| 80 | Maro's Gone Nuts (playtest) | Mark Rosewater | Green | C | Mystery Booster |
| 82 | Marrow Bats | Jason A. Engle | Black | U | Commander 2013 Edition |
| 113 | Marrow Bats | Jason A. Engle | Black | U | Avacyn Restored |
| 93 | Marrow Chomper | Lars Grant-West | Black/Green | U | Alara Reborn |
| 15 | Marrow Shards | Raymond Swanland | White | U | New Phyrexia |
| 34 | Marrow-Gnawer | Jenn Ravenna | Black | R | Secret Lair Drop |
| 79 | Marrow-Gnawer | Néstor Ossandón Leal | Black | R | Bloomburrow Commander |
| 109 | Marrow-Gnawer | Wayne Reynolds | Black | R | Jumpstart: Historic Horizons |
| 124 | Marrow-Gnawer | Wayne Reynolds | Black | R | Champions of Kamigawa |
| 118 | Marsh Boa | Heather Hudson | Green | C | Prophecy |
| 54 | Marsh Casualties | Scott Chou | Black | U | Duel Decks: Zendikar vs. Eldrazi |
| 69 | Marsh Casualties | Scott Chou | Black | U | Duel Decks: Jace vs. Vraska |
| 101 | Marsh Casualties | Scott Chou | Black | U | Zendikar |
| 115 | Marsh Crocodile | Kev Walker | Blue/Black | U | Planeshift |
| 6 | Marsh Flats | Sam Burley | | M | Zendikar Rising Expeditions |
| 21 | Marsh Flats | Ryan Yee | | M | Zendikar Expeditions |
| 219 | Marsh Flats | Izzy | | R | Zendikar |
| 239 | Marsh Flats | Izzy | | R | Modern Masters 2017 Edition |
| 248 | Marsh Flats | Izzy | | R | Modern Horizons 2 |
| 437 | Marsh Flats | Izzy | | R | Modern Horizons 2 |
| 476 | Marsh Flats | Izzy | | R | Modern Horizons 2 |
| 46 | Marsh Flitter | Wayne Reynolds | Black | U | Zendikar Rising Commander |
| 91 | Marsh Flitter | Wayne Reynolds | Black | U | Modern Masters |
| 125 | Marsh Flitter | Wayne Reynolds | Black | U | Lorwyn |
| Marsh Gas | Douglas Shuler | Black | C | Fourth Edition |
| Marsh Gas | Douglas Shuler | Black | C | The Dark |
| Marsh Goblins | Quinton Hoover | Black/Red | C | The Dark |
| 109 | Marsh Hulk | Raf Sarmento | Black | C | Dragons of Tarkir |
| Marsh Lurker | Tom Kyffin | Black | C | Tempest |
| 14 | Marsh Threader | David Palumbo | White | C | Worldwake |
| Marsh Viper | Ron Spencer | Green | C | Fifth Edition |
| Marsh Viper | Ron Spencer | Green | C | Fourth Edition |
| Marsh Viper | Ron Spencer | Green | C | The Dark |
| 246 | Marshal of Zhalfir | Darren Tan | White/Blue | U | March of the Machine |
| 13 | Marshaling Cry | Vance Kovacs | White | C | Future Sight |
| 141 | Marshaling the Troops | Liu Shangying | Green | R | Portal Three Kingdoms |
| 15 | Marshal's Anthem | Matt Stewart | White | R | Worldwake |
| 29 | Marshal's Anthem | Matt Stewart | White | R | Kaldheim Commander |
| 74 | Marshal's Anthem | Matt Stewart | White | R | Commander 2015 |
| 77 | Marshal's Anthem | Matt Stewart | White | R | Commander 2014 |
| 82 | Marshal's Anthem | Matt Stewart | White | R | Outlaws of Thunder Junction Commander |
| 166 | Marshal's Anthem | Veli Nyström | White | R | Magic The Gathering—Fallout |
| 172 | Marshal's Anthem | Erion Makuo | White | R | The Lord of the Rings: Tales of Middle Earth Commander |
| 453 | Marshal's Anthem | Veli Nyström | White | R | Magic The Gathering—Fallout |
| 69 | Marshdrinker Giant | Daarken | Green | U | Eventide |
| 43 | Marshland Bloodcaster | Jodie Muir | Black | R | Commander 2021 |
| 139 | Marshland Bloodcaster | Jodie Muir | Black | R | Outlaws of Thunder Junction Commander |
| 370 | Marshland Bloodcaster | Jodie Muir | Black | R | Commander 2021 |
| 76 | Marshmist Titan | Volkan Baga | Black | C | Born of the Gods |
| 48 | Martha Jones | Daniel Correia | Blue | R | Doctor Who Commander |
| 363 | Martha Jones | Daniel Correia | Blue | R | Doctor Who Commander |
| 9 | Martial Coup | Greg Staples | White | M | From the Vault: Annihilation (2014) |
| 11 | Martial Coup | Greg Staples | White | R | Conflux |
| 69 | Martial Coup | Greg Staples | White | R | Commander 2018 |
| 78 | Martial Coup | Greg Staples | White | R | Commander 2014 |
| 79 | Martial Coup | Greg Staples | White | R | Phyrexia: All Will Be One Commander |
| 146 | Martial Coup | Greg Staples | White | R | Bloomburrow Commander |
| 167 | Martial Coup | Monztre | White | R | Magic The Gathering—Fallout |
| 189 | Martial Coup | Diego Gisbert | White | R | Warhammer 40,000 Commander |
| 206 | Martial Coup | Greg Staples | White | R | Streets of New Capenna Commander |
| 378 | Martial Coup | Greg Staples | White | R | Commander Legends |
| 454 | Martial Coup | Monztre | White | R | Magic The Gathering—Fallout |
| 91 | Martial Glory | Raymond Swanland | White/Red | C | Guild Kit: Boros |
| 175 | Martial Glory | Raymond Swanland | White/Red | C | Gatecrash |
| 249 | Martial Glory | Raymond Swanland | White/Red | C | Double Masters 2022 |
| 28 | Martial Impetus | Aaron Miller | White | U | Ikoria Commander |
| 33 | Martial Impetus | Brian Valeza | White | C | Commander Legends: Battle for Baldur's Gate |
| 65 | Martial Impetus | Aaron Miller | White | C | Ravnica Clue Edition |
| 72 | Martial Impetus | Aaron Miller | White | U | Murders at Karlov Manor Commander |
| 96 | Martial Impetus | Aaron Miller | White | U | Commander 2021 |
| 108 | Martial Impetus | Alexander Mokhov | White | U | Bloomburrow Commander |
| 14 | Martial Law | Tyler Jacobson | White | R | Return to Ravnica |
| Márton Stromgald | Mark Poole | Red | R | Ice Age |
| 104 | Márton Stromgald | Mark Poole | Red | R | Masters Edition |
| 23 | Martyr for the Cause | Zoltan Boros | White | C | War of the Spark |
| 92 | Martyr of Ashes | Ralph Horsley | Red | C | Coldsnap |