| 159 | Master Biomancer | Willian Murai | Blue/Green | M | Commander Anthology 2018 |
| 176 | Master Biomancer | Willian Murai | Blue/Green | M | Gatecrash |
| 200 | Master Biomancer | Willian Murai | Blue/Green | M | Ravnica Clue Edition |
| 210 | Master Biomancer | Willian Murai | Blue/Green | M | Commander 2016 |
| 224 | Master Biomancer | Willian Murai | Blue/Green | M | Commander 2021 |
| 250 | Master Biomancer | Willian Murai | Blue/Green | R | Double Masters 2022 |
| 521 | Master Biomancer | Willian Murai | Blue/Green | R | Double Masters 2022 |
| 241 | Master Chef | Forrest Imel | Green | C | Commander Legends: Battle for Baldur's Gate |
| Master Decoy | Phil Foglio | White | C | Battle Royale Box Set |
| Master Decoy | Phil Foglio | White | C | Tempest |
| 18 | Master Decoy | Phil Foglio | White | C | Tempest Remastered |
| 27 | Master Decoy | Ben Thompson | White | C | Ninth Edition |
| 29 | Master Decoy | Ben Thompson | White | C | Eighth Edition |
| 50 | Master Decoy | Ben Thompson | White | C | Duel Decks: Speed vs. Cunning |
| 12 | Master Healer | Adam Rex | White | R | Urza's Destiny |
| 27 | Master Healer | Greg & Tim Hildebrandt | White | R | Seventh Edition |
| 28 | Master Healer | Adam Rex | White | R | Ninth Edition |
| 30 | Master Healer | Greg & Tim Hildebrandt | White | R | Eighth Edition |
| Master of Arms | Dan Frazier | White | U | Weatherlight |
| 18 | Master of Ceremonies | Milivoj Ćeran | White | R | Streets of New Capenna Commander |
| 119 | Master of Ceremonies | Milivoj Ćeran | White | R | Streets of New Capenna Commander |
| 66 | Master of Cruelties | Chase Stone | Black/Red | M | Guild Kit: Rakdos |
| 82 | Master of Cruelties | Chase Stone | Black/Red | M | Dragon's Maze |
| 198 | Master of Cruelties | Chase Stone | Black/Red | M | Ravnica Remastered |
| 251 | Master of Cruelties | Chase Stone | Black/Red | M | Double Masters 2022 |
| 373 | Master of Cruelties | Chase Stone | Black/Red | M | Ravnica Remastered |
| 522 | Master of Cruelties | Chase Stone | Black/Red | M | Double Masters 2022 |
| 51 | Master of Dark Rites | Igor Kieryluk | Black | R | The Lost Caverns of Ixalan Commander |
| 83 | Master of Dark Rites | Igor Kieryluk | Black | R | The Lost Caverns of Ixalan Commander |
| 205 | Master of Death | John Stanko | Blue/Black | R | Modern Horizons 2 |
| 216 | Master of Death | John Stanko | Blue/Black | R | Murders at Karlov Manor Commander |
| 465 | Master of Death | John Stanko | Blue/Black | R | Modern Horizons 2 |
| 24 | Master of Diversion | Michael Komarck | White | C | Magic 2014 Core Set |
| 11 | Master of Etherium | Matt Cavotta | Blue | R | Planechase |
| 48 | Master of Etherium | Matt Cavotta | Blue | R | Duel Decks: Elspeth vs. Tezzeret |
| 49 | Master of Etherium | Matt Cavotta | Blue | R | Shards of Alara |
| 57 | Master of Etherium | Matt Cavotta | Blue | R | Double Masters |
| 86 | Master of Etherium | Matt Cavotta | Blue | R | The Brothers' War Commander |
| 92 | Master of Etherium | Matt Cavotta | Blue | R | Commander 2016 |
| 94 | Master of Etherium | Matt Cavotta | Blue | R | Kamigawa: Neon Dynasty Commander |
| 226 | Master of Etherium | Matt Cavotta | Blue | R | March of the Machine Commander |
| 18 | Master of Pearls | David Gaillet | White | R | Khans of Tarkir |
| 73 | Master of Pearls | David Gaillet | White | R | Murders at Karlov Manor Commander |
| 67 | Master of Predicaments | Matt Stewart | Blue | R | Magic 2015 Core Set |
| 75 | Master of the Feast | Chris Rahn | Black | R | Journey into Nyx |
| Master of the Hunt | Jeff A. Menges | Green | R | Legends |
| 9 | Master of the Pearl Trident | Ryan Pancoast | Blue | R | Duel Decks: Merfolk vs. Goblins |
| 59 | Master of the Pearl Trident | Ryan Pancoast | Blue | R | Magic 2013 |
| 87 | Master of the Pearl Trident | Ryan Pancoast | Blue | R | Jumpstart: Historic Horizons |
| 162 | Master of the Pearl Trident | Ryan Pancoast | Blue | R | The Lost Caverns of Ixalan Commander |
| 310 | Master of the Pearl Trident | Ryan Pancoast | Blue | B | Time Spiral Remastered |
| 43 | Master of the Veil | Ron Spears | Blue | U | Legions |
| 181 | Master of the Wild Hunt | Kev Walker | Green | M | Masters 25 |
| 191 | Master of the Wild Hunt | Kev Walker | Green | M | Magic 2010 |
| 688 | Master of the Wild Hunt | Kev Walker | Green | M | Jumpstart 2022 |
| 1 | Master of Waves | Svetlin Velinov | Blue | M | Duel Decks: Merfolk vs. Goblins |
| 53 | Master of Waves | Karl Kopinski | Blue | M | Theros |
| 68 | Master of Winds | Yigit Koroglu | Blue | R | Zendikar Rising |
| 331 | Master of Winds | Yigit Koroglu | Blue | R | Zendikar Rising |
| 19 | Master Skald | Svetlin Velinov | White | C | Kaldheim |
| 15 | Master Splicer | Chippy | White | U | Modern Masters 2017 Edition |
| 16 | Master Splicer | Chippy | White | U | New Phyrexia |
| 22 | Master Splicer | Chippy | White | U | Double Masters |
| 29 | Master Splicer | Chippy | White | U | Core Set 2020 |
| 194 | Master Splicer | Chippy | White | U | March of the Machine Commander |
| 138 | Master Symmetrist | Forrest Imel | Green | U | Strixhaven: School of Mages |
| 188 | Master the Way | Howard Lyon | Blue/Red | U | Khans of Tarkir |
| 30 | Master Thief | Christopher Moeller | Blue | U | Zendikar Rising Commander |
| 64 | Master Thief | Christopher Moeller | Blue | U | Magic 2012 |
| 7 | Master Transmuter | Chippy | Blue | R | Archenemy |
| 31 | Master Transmuter | Chippy | Blue | R | Conflux |
| 58 | Master Transmuter | Chippy | Blue | R | Double Masters |
| 87 | Master Transmuter | Chippy | Blue | R | The Brothers' War Commander |
| 21 | Master Trinketeer | Matt Stewart | White | R | Kaladesh |
| 25 | Master Trinketeer | Matt Stewart | White | R | Kaladesh Remastered |
| 92 | Master Warcraft | Zoltan Boros & Gabor Szikszai | White/Red | R | Guild Kit: Boros |
| 202 | Master Warcraft | Zoltan Boros & Gabor Szikszai | White/Red | R | Commander Anthology |
| 209 | Master Warcraft | Zoltan Boros & Gabor Szikszai | White/Red | R | Magic: The Gathering-Commander |
| 250 | Master Warcraft | Zoltan Boros & Gabor Szikszai | White/Red | R | Ravnica: City of Guilds |
| 447 | Master Warcraft | Zoltan Boros & Gabor Szikszai | White/Red | R | Commander Legends |
| 164 | Mastercraft Raptor | Zoltan Boros | Red | U | The Lost Caverns of Ixalan |
| 60 | Masterful Ninja | Matt Gaser | Black | R | Unstable |
| 65 | Masterful Replication | Victor Adame Minguez | Blue | R | Core Set 2020 |
| 227 | Masterful Replication | Victor Adame Minguez | Blue | R | March of the Machine Commander |
| 3 | Mastermind Plum | Bryan Sola | Black | R | Ravnica Clue Edition |
| 77 | Mastermind's Acquisition | Svetlin Velinov | Black | R | Rivals of Ixalan |
| 13 | Master's Call | David Rapoza | White | C | Mirrodin Besieged |
| 233 | Master's Guide-Mural | Racrufi | White/Blue | U | The Lost Caverns of Ixalan |
| 233 | Master's Manufactory | Racrufi | White/Blue | U | The Lost Caverns of Ixalan |
| 202 | Master's Rebuke | Francisco Miyara | Green | C | Kamigawa: Neon Dynasty |
| 689 | Master's Rebuke | Francisco Miyara | Green | C | Jumpstart 2022 |
| 57 | Masterwork of Ingenuity | Ulrich Brunin | | R | Commander 2014 |
| 209 | Masterwork of Ingenuity | Ulrich Brunin | | R | Adventures in the Forgotten Realms Commander |
| 234 | Masterwork of Ingenuity | Daarken | | R | Magic The Gathering—Fallout |
| 271 | Masterwork of Ingenuity | Ulrich Brunin | | R | Double Masters |
| 483 | Masterwork of Ingenuity | Daarken | | R | Magic The Gathering—Fallout |
| 19 | Mastery of the Unseen | Daniel Ljunggren | White | R | Ugin's Fate promos |
| 19 | Mastery of the Unseen | Daniel Ljunggren | White | R | Fate Reforged |
| 74 | Mastery of the Unseen | Daniel Ljunggren | White | R | Murders at Karlov Manor Commander |
| 7 | Masticore | Steven Belledin | | M | From the Vault: Relics |
| 134 | Masticore | Paolo Parente | | R | Urza's Destiny |
| 275 | Masticore | Steven Belledin | | R | Vintage Masters |
| 136 | Masumaro, First to Live | Adam Rex | Green | R | Saviors of Kamigawa |
| 84 | Matca Rioters | Steve Argyle | Green | C | Conflux |
| 148 | Matca Rioters | Steve Argyle | Green | C | Modern Masters 2015 Edition |
| 42 | Mathas, Fiend Seeker | Joe Slucher | White/Black/Red | M | Commander 2017 |
| 252 | Mathas, Fiend Seeker | Joe Slucher | White/Black/Red | R | Double Masters 2022 |
| 523 | Mathas, Fiend Seeker | Joe Slucher | White/Black/Red | R | Double Masters 2022 |
| Matopi Golem | Tom Kyffin | | U | Visions |
| 137 | Matsu-Tribe Birdstalker | Heather Hudson | Green | C | Saviors of Kamigawa |
| 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 |
| 676 | Mazemind Tome | Randy Gallegos | | R | Magic: The Gathering Foundations |
| 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 |
| 727 | Maze's End | Cliff Childs | | M | Magic: The Gathering Foundations |
| 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 |
| 578 | Meandered Towershell (playtest) | Hung Nguy | Green | R | Mystery Booster 2: Convention Edition |
| 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 |