| 8 | Osgir, the Reconstructor | Victor Adame Minguez | White/Red | M | Commander 2021 |
| 335 | Osgir, the Reconstructor | Victor Adame Minguez | White/Red | M | Commander 2021 |
| 191 | Osgood, Operation Double | Justyna Dura | Blue | R | Doctor Who Commander |
| 367 | Osgood, Operation Double | Justyna Dura | Blue | R | Doctor Who Commander |
| 77 | Oskar, Rubbish Reclaimer | Leonardo Santanna | Blue/Black | R | Streets of New Capenna Commander |
| 177 | Oskar, Rubbish Reclaimer | Leonardo Santanna | Blue/Black | R | Streets of New Capenna Commander |
| 112 | Osseous Sticktwister | Mathias Kollros | Black | U | Duskmourn: House of Horror |
| 26 | Ossification | Nino Vecia | White | U | Phyrexia: All Will Be One |
| 277 | Ossification | Nino Vecia | White | U | Phyrexia: All Will Be One |
| 24 | Ossuary Rats | Ralph Horsley | Black | C | Jumpstart 2022 |
| 103 | Osteomancer Adept | Daniel Zrom | Black | R | Bloomburrow |
| 312 | Osteomancer Adept | Justine Mara Andersen | Black | R | Bloomburrow |
| 55 | Ostiary Thrull | Ron Spencer | Black | C | Guildpact |
| 57 | Ostracize | Chippy | Black | C | Urza's Legacy |
| 153 | Ostracize | Hannibal King | Black | C | Seventh Edition |
| 28 | Oswald Fiddlebender | Steven Belledin | White | R | Adventures in the Forgotten Realms |
| 304 | Oswald Fiddlebender | Phil Stone | White | R | Adventures in the Forgotten Realms |
| 271 | Otawara, Soaring City | Alayna Danner | | R | Kamigawa: Neon Dynasty |
| 414 | Otawara, Soaring City | Yuta Shimpo | | R | Kamigawa: Neon Dynasty |
| 503 | Otawara, Soaring City | Alayna Danner | | R | Kamigawa: Neon Dynasty |
| 153 | Otepec Huntmaster | Daarken | Red | U | Ixalan |
| 229 | Otepec Huntmaster | Daarken | Red | U | The Lost Caverns of Ixalan Commander |
| 3 | Otharri, Suns' Glory | Marta Nael | White/Red | M | Phyrexia: All Will Be One Commander |
| 39 | Otharri, Suns' Glory | Marta Nael | White/Red | M | Phyrexia: All Will Be One Commander |
| 219 | Otherworld Atlas | Sam Wolfe Connelly | | R | Avacyn Restored |
| 12 | Otherworldly Escort | Artur Treffner | White | R | Murders at Karlov Manor Commander |
| 323 | Otherworldly Escort | Artur Treffner | White | R | Murders at Karlov Manor Commander |
| 138 | Otherworldly Outburst | Kieran Yanner | Red | C | Eldritch Moon |
| 63 | Otterball Antics | Rhonda Libbey | Blue | U | Bloomburrow |
| 90 | Ouphe Vandals | Thomas M. Baxa | Green | U | Fifth Dawn |
| 107 | Our Market Research Shows That Players Like Really Long Card Names So We Made this Card to Have the Absolute Longest Card Name Ever Elemental | Greg Hildebrandt | Green | C | Unhinged |
| 7 | Oust | Mike Bierek | White | U | Duel Decks: Zendikar vs. Eldrazi |
| 40 | Oust | Mike Bierek | White | U | Rise of the Eldrazi |
| 67 | Oust | Mike Bierek | White | U | Ravnica Clue Edition |
| 38 | Out of Bounds | Dmitry Burmak | Blue | U | Battlebond |
| 46 | Out of the Tombs | Games Workshop | Black | R | Warhammer 40,000 Commander |
| 172 | Outcaster Greenblade | Josu Hernaiz | Green | U | Outlaws of Thunder Junction |
| 173 | Outcaster Trailblazer | Denys Tsiperko | Green | R | Outlaws of Thunder Junction |
| 343 | Outcaster Trailblazer | Denys Tsiperko | Green | R | Outlaws of Thunder Junction |
| 193 | Outland Colossus | Ryan Pancoast | Green | R | Magic Origins |
| 59 | Outlaw Stitcher | Alix Branwyn | Blue | U | Outlaws of Thunder Junction |
| 136 | Outlaws' Fury | Diego Gisbert | Red | C | Outlaws of Thunder Junction |
| 51 | Outlaws' Merriment | Willem Hampson | White/Red | R | Outlaws of Thunder Junction Breaking News |
| 198 | Outlaws' Merriment | Suzanne Helmigh | White/Red | M | Throne of Eldraine |
| 170 | Outmuscle | Viktor Titov | Green | C | Throne of Eldraine |
| 110 | Outpost Siege | Daarken | Red | R | Fate Reforged |
| 135 | Outpost Siege | Daarken | Red | R | Adventures in the Forgotten Realms Commander |
| 139 | Outpost Siege | Daarken | Red | R | Commander 2017 |
| 157 | Outpost Siege | Daarken | Red | R | Ikoria Commander |
| 199 | Outpost Siege | Daarken | Red | R | Bloomburrow Commander |
| 272 | Outpost Siege | Daarken | Red | R | Streets of New Capenna Commander |
| 804 | Outpost Siege | Daarken | Red | R | Commander Legends: Battle for Baldur's Gate |
| 59 | Outrage Shaman | Cole Eastburn | Red | U | Eventide |
| 97 | Outrageous Robbery | Kai Carpenter | Black | R | Murders at Karlov Manor |
| 402 | Outrageous Robbery | Kai Carpenter | Black | R | Murders at Karlov Manor |
| 52 | Outrider of Jhess | Alan Pollack | Blue | C | Shards of Alara |
| 97 | Ovalchase Daredevil | Winona Nelson | Black | U | Kaladesh |
| 101 | Ovalchase Daredevil | Winona Nelson | Black | U | Double Masters |
| 225 | Ovalchase Dragster | Victor Adame Minguez | | U | Kaladesh |
| 256 | Ovalchase Dragster | Victor Adame Minguez | | U | Kaladesh Remastered |
| 63 | Over My Dead Bodies | Even Amundsen | Black | R | Unstable |
| 152 | Overflowing Basin | Marina Ortega Lorente | | R | Magic The Gathering—Fallout |
| 293 | Overflowing Basin | Sarah Finnigan | | R | Duskmourn: House of Horror Commander |
| 308 | Overflowing Basin | Sarah Finnigan | | R | Outlaws of Thunder Junction Commander |
| 321 | Overflowing Basin | Sarah Finnigan | | R | Bloomburrow Commander |
| 362 | Overflowing Basin | Sarah Finnigan | | R | Modern Horizons 3 Commander |
| 444 | Overflowing Basin | Marina Ortega Lorente | | R | Magic The Gathering—Fallout |
| 30 | Overflowing Insight | Lucas Graciano | Blue | R | Arena Base Set |
| 66 | Overflowing Insight | Lucas Graciano | Blue | M | Ixalan |
| 141 | Overgrown Armasaur | Joseph Meehan | Green | C | Rivals of Ixalan |
| 113 | Overgrown Estate | Brian Snoddy | White/Black/Green | R | Apocalypse |
| 197 | Overgrown Pest | Eelis Kyttanen | Green | C | March of the Machine |
| 146 | Overlord of the Boilerbilges | Helge C. Balzer | Red | M | Duskmourn: House of Horror |
| 380 | Overlord of the Boilerbilges | Helge C. Balzer | Red | M | Duskmourn: House of Horror |
| 393 | Overlord of the Boilerbilges | akio | Red | M | Duskmourn: House of Horror |
| 403 | Overlord of the Boilerbilges | akio | Red | M | Duskmourn: House of Horror |
| 68 | Overlord of the Floodpits | Abz J Harding | Blue | M | Duskmourn: House of Horror |
| 373 | Overlord of the Floodpits | Abz J Harding | Blue | M | Duskmourn: House of Horror |
| 389 | Overlord of the Floodpits | 山宗/SANSYU | Blue | M | Duskmourn: House of Horror |
| 399 | Overlord of the Floodpits | 山宗/SANSYU | Blue | M | Duskmourn: House of Horror |
| 194 | Overlord of the Hauntwoods | Tiffany Turrill | Green | M | Duskmourn: House of Horror |
| 383 | Overlord of the Hauntwoods | Tiffany Turrill | Green | M | Duskmourn: House of Horror |
| 395 | Overlord of the Hauntwoods | アオガチョウ/AOGACHOU | Green | M | Duskmourn: House of Horror |
| 405 | Overlord of the Hauntwoods | アオガチョウ/AOGACHOU | Green | M | Duskmourn: House of Horror |
| 23 | Overlord of the Mistmoors | Steven Belledin | White | M | Duskmourn: House of Horror |
| 370 | Overlord of the Mistmoors | Steven Belledin | White | M | Duskmourn: House of Horror |
| 387 | Overlord of the Mistmoors | 竹内基/Takeuchi Moto | White | M | Duskmourn: House of Horror |
| 397 | Overlord of the Mistmoors | 竹内基/Takeuchi Moto | White | M | Duskmourn: House of Horror |
| 104 | Overmaster | Anthony S. Waters | Red | R | Torment |
| 132 | Overmaster | Chris Seaman | Red | R | Dominaria Remastered |
| 327 | Overmaster | Chris Seaman | Red | R | Dominaria Remastered |
| 28 | Overseer of the Damned | rk post | Black | R | Commander 2014 |
| 36 | Overseer of the Damned | rk post | Black | R | Archenemy: Nicol Bolas |
| 125 | Overseer of the Damned | rk post | Black | R | Commander 2019 |
| 127 | Overseer of the Damned | rk post | Black | R | Innistrad: Midnight Hunt Commander |
| 132 | Overseer of the Damned | rk post | Black | R | Murders at Karlov Manor Commander |
| 19 | Overseer of Vault 76 | Kieran Yanner | White | R | Magic The Gathering—Fallout |
| 368 | Overseer of Vault 76 | Kieran Yanner | White | R | Magic The Gathering—Fallout |
| 72 | Oversimplify | Liiga Smilshkalne | Blue/Green | R | Commander 2021 |
| 228 | Oversimplify | Liiga Smilshkalne | Blue/Green | R | Duskmourn: House of Horror Commander |
| 399 | Oversimplify | Liiga Smilshkalne | Blue/Green | R | Commander 2021 |
| 33 | Oversold Cemetery | Harry Conway | Black | R | Wilds of Eldraine Enchanting Tales |
| 96 | Oversold Cemetery | Jarel Threat | Black | R | Dominaria Remastered |
| 160 | Oversold Cemetery | Thomas M. Baxa | Black | R | Onslaught |
| 309 | Oversold Cemetery | Jarel Threat | Black | R | Dominaria Remastered |
| 428 | Oversold Cemetery | Drew Tucker | Black | R | Dominaria Remastered |
| 453 | Oversold Cemetery | Thomas M. Baxa | Black | R | Jumpstart 2022 |
| 234 | Oversoul of Dusk | Scott M. Fischer | White/Green | R | Shadowmoor |
| 68 | Overwhelmed Archivist | Cristi Balanescu | Blue | U | Innistrad: Midnight Hunt |
| 17 | Overwhelming Forces | Willem Hampson | Black | M | Outlaws of Thunder Junction Breaking News |
| 69 | Overwhelming Forces | Willem Hampson | Black | M | Outlaws of Thunder Junction Breaking News |
| 79 | Overwhelming Forces | Gao Yan | Black | R | Portal Three Kingdoms |
| 92 | Overwhelming Forces | Gao Yan | Black | R | Masters Edition IV |
| 276 | Overwhelming Instinct | Ron Spears | Green | U | Onslaught |
| 110 | Overwhelming Remorse | Ryan Valle | Black | C | The Brothers' War |
| 19 | Overwhelming Splendor | Richard Wright | White | M | Hour of Devastation |
| 30 | Overwhelming Splendor | Richard Wright | White | M | Amonkhet Remastered |
| 131 | Overwhelming Stampede | Steven Belledin | Green | R | Commander Anthology |
| 153 | Overwhelming Stampede | Steven Belledin | Green | R | Modern Masters 2015 Edition |
| 175 | Overwhelming Stampede | Steven Belledin | Green | R | Commander 2019 |
| 189 | Overwhelming Stampede | Steven Belledin | Green | R | Magic 2011 |
| 192 | Overwhelming Stampede | Steven Belledin | Green | R | Duskmourn: House of Horror Commander |
| 196 | Overwhelming Stampede | Steven Belledin | Green | R | Commander 2015 |
| 208 | Overwhelming Stampede | Steven Belledin | Green | R | Commander 2014 |
| 254 | Overwhelming Stampede | Viko Menezes | Green | R | The Lord of the Rings: Tales of Middle Earth Commander |
| 97 | Overzealous Muscle | Sam White | Black | C | Outlaws of Thunder Junction |
| 165 | Oviya Pashiri, Sage Lifecrafter | Magali Villeneuve | Green | R | Kaladesh |
| 174 | Oviya Pashiri, Sage Lifecrafter | Magali Villeneuve | Green | R | Kaladesh Remastered |
| 311 | Oviya Pashiri, Sage Lifecrafter | Magali Villeneuve | Green | U | Commander Masters |
| 219 | Owlbear Shepherd | Scott Murphy | Green | U | Alchemy Horizons: Baldur's Gate |
| 247 | Owlbear Shepherd | Scott Murphy | Green | U | Commander Legends: Battle for Baldur's Gate |
| 210 | Owlin Shieldmage | Raoul Vitale | White/Black | C | Strixhaven: School of Mages |
| 108 | Ox of Agonas | Lie Setiawan | Red | M | Kamigawa: Neon Dynasty Commander |
| 147 | Ox of Agonas | Lie Setiawan | Red | M | Theros Beyond Death |
| 143 | Oxidda Finisher | Vladimir Krisetskiy | Red | U | Phyrexia: All Will Be One |
| 101 | Oxidda Scrapmelter | Igor Kieryluk | Red | U | Scars of Mirrodin |
| 18 | Oyobi, Who Split the Heavens | Christopher Moeller | White | R | Betrayers of Kamigawa |
| 95 | Oyobi, Who Split the Heavens | Christopher Moeller | White | R | Innistrad: Crimson Vow Commander |
| 198 | Ozolith, the Shattered Spire | Daarken | Green | R | March of the Machine |
| 372 | Ozolith, the Shattered Spire | Daarken | Green | R | March of the Machine |
| Pacifism | Robert Bliss | White | C | Battle Royale Box Set |
| Pacifism | Adam Rex | White | C | Tempest |
| Pacifism | Robert Bliss | White | C | Mirage |
| 16 | Pacifism | Jesper Ejsing | White | C | Arena Base Set |
| 17 | Pacifism | Matthew D. Wilson | White | C | Duel Decks Anthology, Divine vs. Demonic |
| 17 | Pacifism | Matthew D. Wilson | White | C | Duel Decks: Divine vs. Demonic |
| 19 | Pacifism | Eric Peterson | White | C | Dominaria Remastered |
| 22 | Pacifism | Adam Rex | White | U | Tempest Remastered |
| 22 | Pacifism | Robert Bliss | White | C | Magic 2010 |
| 23 | Pacifism | Robert Bliss | White | C | Eternal Masters |
| 23 | Pacifism | Robert Bliss | White | C | Magic 2011 |
| 24 | Pacifism | Robert Bliss | White | C | Magic 2013 |
| 25 | Pacifism | Kev Walker | White | C | Ikoria: Lair of Behemoths |
| 25 | Pacifism | Robert Bliss | White | C | Magic 2014 Core Set |
| 27 | Pacifism | Randy Gallegos | White | C | Urza's Saga |
| 28 | Pacifism | Robert Bliss | White | C | Masters 25 |
| 28 | Pacifism | Robert Bliss | White | C | Magic 2012 |
| 29 | Pacifism | Mark Zug | White | C | Dragons of Tarkir |
| 29 | Pacifism | Eric Peterson | White | C | Seventh Edition |
| 31 | Pacifism | Robert Bliss | White | C | Tenth Edition |
| 31 | Pacifism | Robert Bliss | White | C | Ninth Edition |
| 32 | Pacifism | Jesper Ejsing | White | C | Core Set 2020 |
| 33 | Pacifism | Robert Bliss | White | C | Eighth Edition |
| 33 | Pacifism | Robert Bliss | White | C | Classic Sixth Edition |
| 47 | Pacifism | Matthew D. Wilson | White | C | Onslaught |
| 101 | Pacifism | Robert Bliss | White | C | Battlebond |
| 125 | Pacifism | Jesper Ejsing | White | C | Jumpstart |
| 501 | Pacifism | Kev Walker | White | C | Magic: The Gathering Foundations |
| 152 | Pack Mastiff | Svetlin Velinov | Red | C | Core Set 2020 |
| 153 | Pack's Betrayal | Sam Rowan | Red | C | Innistrad: Midnight Hunt |
| 73 | Pack's Disdain | Pete Venters | Black | C | Morningtide |
| 139 | Pack's Favor | Lius Lasahido | Green | C | Guilds of Ravnica |
| 213 | Packsong Pup | April Prime | Green | U | Innistrad: Crimson Vow |
| 703 | Packsong Pup | April Prime | Green | U | Jumpstart 2022 |
| 9 | Pact of the Serpent | Donato Giancola | Black | R | Kaldheim Commander |
| 206 | Pact of the Serpent | Donato Giancola | Black | R | The Lost Caverns of Ixalan Commander |
| 59 | Padeem, Consul of Innovation | Matt Stewart | Blue | R | Kaladesh |
| 60 | Padeem, Consul of Innovation | Matt Stewart | Blue | R | Kaladesh Remastered |
| 91 | Padeem, Consul of Innovation | Matt Stewart | Blue | R | The Brothers' War Commander |
| 109 | Padeem, Consul of Innovation | Matt Stewart | Blue | U | Commander Masters |
| 72 | Pain | David Martin | Black | U | Duel Decks: Ajani vs. Nicol Bolas |
| 209 | Pain | David Martin | Black | U | Dominaria Remastered |
| 294 | Pain | David Martin | Black | U | Invasion |
| 294 | Pain | David Martin | Black | U | Invasion |
| 33 | Pain Distributor | Olivier Bernard | Red | R | March of the Machine Commander |
| 120 | Pain Distributor | Olivier Bernard | Red | R | March of the Machine Commander |
| 80 | Pain Seer | Tyler Jacobson | Black | R | Born of the Gods |
| 102 | Painful Lesson | Adrian Majkrzak | Black | C | Amonkhet |
| 154 | Painful Lesson | Adrian Majkrzak | Black | C | Battlebond |
| Painful Memories | John Coulthart | Black | U | Mirage |
| 147 | Painful Memories | John Coulthart | Black | C | Classic Sixth Edition |
| 95 | Painful Truths | Winona Nelson | Black | R | Phyrexia: All Will Be One Commander |
| 116 | Painful Truths | Winona Nelson | Black | R | Dominaria United Commander |
| 118 | Painful Truths | Winona Nelson | Black | R | Commander 2017 |
| 120 | Painful Truths | Winona Nelson | Black | R | Battle for Zendikar |
| 134 | Painful Truths | Winona Nelson | Black | R | Ikoria Commander |
| 146 | Painful Truths | Winona Nelson | Black | R | Outlaws of Thunder Junction Commander |
| 255 | Painful Truths | Winona Nelson | Black | R | Streets of New Capenna Commander |
| 262 | Painful Truths | Winona Nelson | Black | R | March of the Machine Commander |
| 85 | Pain's Reward | Matt Cavotta | Black | R | Saviors of Kamigawa |
| 74 | Painsmith | Eric Deschamps | Black | U | Scars of Mirrodin |
| 102 | Painsmith | Eric Deschamps | Black | U | Double Masters |
| 246 | Painted Bluffs | Mark Poole | | C | Amonkhet |
| 309 | Painted Bluffs | Mark Poole | | C | Outlaws of Thunder Junction Commander |
| 20 | Painter's Servant | Magali Villeneuve | | S | Masterpiece Series: Kaladesh Inventions |
| 257 | Painter's Servant | Mike Dringenberg | | R | Shadowmoor |
| 147 | Painter's Studio | Marc Simonetti | Red | U | Duskmourn: House of Horror |
| 149 | Pair o' Dice Lost | Bruce Brenneise | Green | U | Unfinity |
| 19 | Palace Sentinels | Aaron Miller | White | C | Conspiracy: Take the Crown |
| 36 | Palace Sentinels | Aaron Miller | White | C | Commander Legends |
| 48 | Palace Sentinels | Aaron Miller | White | C | Commander Masters |
| 79 | Palace Siege | Slawomir Maniak | Black | R | Fate Reforged |
| 119 | Palace Siege | Slawomir Maniak | Black | R | Commander 2017 |
| 29 | Paladin Class | Campbell White | White | R | Adventures in the Forgotten Realms |
| 20 | Paladin Danse, Steel Maverick | Dan Murayama Scott | White | U | Magic The Gathering—Fallout |
| 25 | Paladin of the Bloodstained | Bastien L. Deharme | White | C | Ixalan |
| 30 | Paladin's Shield | Alayna Danner | White | C | Adventures in the Forgotten Realms |
| 237 | Palani's Hatcher | Aaron Miller | Red/Green | R | The Lost Caverns of Ixalan |
| 332 | Palani's Hatcher | Sidharth Chaturvedi | Red/Green | R | The Lost Caverns of Ixalan |
| 42 | Palazzo Archers | Miklós Ligeti | Green | U | Assassin's Creed |
| 222 | Palazzo Archers | Miklós Ligeti | Green | U | Assassin's Creed |
| Pale Bears | Anthony Waters | Green | R | Ice Age |
| 74 | Pale Recluse | Cyril Van Der Haegen | White/Green | C | Alara Reborn |
| 91 | Pale Recluse | Cyril Van Der Haegen | White/Green | C | Archenemy |
| 128 | Pale Rider of Trostad | Seb McKinnon | Black | U | Shadows over Innistrad |
| 16 | Paleontologist's Pick-Axe | Ernanda Souza | | M | The Lost Caverns of Ixalan Commander |
| 36 | Paleontologist's Pick-Axe | Ernanda Souza | | M | The Lost Caverns of Ixalan Commander |
| 15 | Palisade Giant | Greg Staples | White | R | Return to Ravnica |
| Palladia-Mors | Edward Beard, Jr. | White/Red/Green | R | Chronicles |
| Palladia-Mors | Edward Beard, Jr. | White/Red/Green | R | Legends |
| 164 | Palladia-Mors | Edward P. Beard, Jr. | White/Red/Green | R | Masters Edition III |