| 71 | Slinking Skirge | Ron Spencer | Black | C | Urza's Destiny |
| 66 | Slinn Voda, the Rising Deep | Grzegorz Rutkowski | Blue | U | Dominaria |
| 405 | Slinn Voda, the Rising Deep | Grzegorz Rutkowski | Blue | U | Commander Legends |
| 31 | Slip On the Ring | Iga "IgsonArt" Oliwiak | White | C | The Lord of the Rings: Tales of Middle Earth |
| 482 | Slip On the Ring | Iga "IgsonArt" Oliwiak | White | C | The Lord of the Rings: Tales of Middle Earth |
| 62 | Slip Out the Back | Zara Alfonso | Blue | U | Streets of New Capenna |
| 99 | Slip Out the Back | Zara Alfonso | Blue | U | Ravnica Clue Edition |
| 47 | Slip Through Space | Raymond Swanland | Blue | C | Oath of the Gatewatch |
| 66 | Slippery Bogbonder | Mila Pesic | Green | R | Ikoria Commander |
| 312 | Slippery Bogbonder | Mila Pesic | Green | R | Streets of New Capenna Commander |
| 160 | Slippery Bogle | Dave Allsop | Blue/Green | C | Eventide |
| 223 | Slippery Bogle | Jesper Ejsing | Blue/Green | U | Ultimate Masters |
| Slippery Karst | Stephen Daniele | | C | Beatdown Box Set |
| Slippery Karst | Stephen Daniele | | C | Battle Royale Box Set |
| 26 | Slippery Karst | Stephen Daniele | | C | Duel Decks Anthology, Garruk vs. Liliana |
| 26 | Slippery Karst | Stephen Daniele | | C | Duel Decks: Garruk vs. Liliana |
| 256 | Slippery Karst | Stephen Daniele | | C | Dominaria Remastered |
| 275 | Slippery Karst | Stephen Daniele | | C | Commander Anthology |
| 307 | Slippery Karst | Stephen Daniele | | C | Commander 2015 |
| 311 | Slippery Karst | Stephen Daniele | | C | Commander 2014 |
| 324 | Slippery Karst | Stephen Daniele | | C | Commander 2013 Edition |
| 327 | Slippery Karst | Stephen Daniele | | C | Urza's Saga |
| 55 | Slippery Scoundrel | Dan Scott | Blue | U | Rivals of Ixalan |
| 49 | Slipstream Eel | Mark Tedin | Blue | C | Commander Anthology 2018 |
| 62 | Slipstream Eel | Mark Tedin | Blue | C | Magic: The Gathering-Commander |
| 114 | Slipstream Eel | Mark Tedin | Blue | C | Onslaught |
| 77 | Slipstream Serpent | Darrell Riche | Blue | C | Time Spiral |
| 86 | Slipstream Serpent | Darrell Riche | Blue | C | Time Spiral Remastered |
| 43 | Sliptide Serpent | Daren Bader | Blue | R | Nemesis |
| 23 | Slith Ascendant | Justin Sweet | White | U | Mirrodin |
| 49 | Slith Ascendant | Justin Sweet | White | C | Commander Legends |
| 77 | Slith Bloodletter | Justin Sweet | Black | U | Mirrodin |
| 39 | Slith Firewalker | Justin Sweet | Red | U | Duel Decks Anthology, Jace vs. Chandra |
| 39 | Slith Firewalker | Justin Sweet | Red | U | Duel Decks: Jace vs. Chandra |
| 107 | Slith Firewalker | Justin Sweet | Red | U | Mirrodin |
| 129 | Slith Predator | Justin Sweet | Green | U | Mirrodin |
| 9 | Slith Strider | Justin Sweet | Blue | U | Duel Decks: Venser vs. Koth |
| 50 | Slith Strider | Justin Sweet | Blue | U | Mirrodin |
| 36 | Slither Blade | Zezhou Chen | Blue | C | Zendikar Rising Commander |
| 71 | Slither Blade | Zezhou Chen | Blue | C | Amonkhet |
| 79 | Slither Blade | Zezhou Chen | Blue | C | Amonkhet Remastered |
| 114 | Slither Blade | Zezhou Chen | Blue | C | Outlaws of Thunder Junction Commander |
| 254 | Slitherbore Pathway | Johannes Voss | | R | Kaldheim |
| 292 | Slitherbore Pathway | Alayna Danner | | R | Kaldheim |
| 222 | Slitherhead | Greg Staples | Black/Green | U | Return to Ravnica |
| 226 | Slitherhead | Greg Staples | Black/Green | C | Ravnica Remastered |
| 55 | Slithering Shade | Daren Bader | Black | U | Dissension |
| 50 | Slithermuse | Steven Belledin | Blue | R | Morningtide |
| 208 | Slitherwisp | Yigit Koroglu | Blue/Black | R | Ikoria: Lair of Behemoths |
| 84 | Slithery Stalker | John Avon | Black | U | Torment |
| 102 | Slivdrazi Monstrosity (playtest) | Justin Cornell | | C | Mystery Booster |
| 218 | Sliver Construct | Mathias Kollros | | C | Magic 2014 Core Set |
| 707 | Sliver Gravemother | Chris Rahn | White/Blue/Black/Red/Green | M | Commander Masters |
| 777 | Sliver Gravemother | Chris Rahn | White/Blue/Black/Red/Green | M | Commander Masters |
| 782 | Sliver Gravemother | Chris Rahn | White/Blue/Black/Red/Green | M | Commander Masters |
| 171 | Sliver Hive | Igor Kieryluk | | R | Jumpstart: Historic Horizons |
| 247 | Sliver Hive | Igor Kieryluk | | R | Magic 2015 Core Set |
| 211 | Sliver Hivelord | Aleksi Briclot | White/Blue/Black/Red/Green | M | Magic 2015 Core Set |
| 937 | Sliver Hivelord | Aleksi Briclot | White/Blue/Black/Red/Green | M | Commander Masters |
| 158 | Sliver Legion | Ron Spears | White/Blue/Black/Red/Green | R | Future Sight |
| 261 | Sliver Legion | Ron Spears | White/Blue/Black/Red/Green | M | Time Spiral Remastered |
| 523 | Sliver of Hope (playtest) | Carol Azevedo | White | R | Mystery Booster 2: Convention Edition |
| 10 | Sliver Overlord | Justine Jones | White/Blue/Black/Red/Green | R | Secret Lair Drop |
| 24 | Sliver Overlord | Tony Szczudlo | White/Blue/Black/Red/Green | M | Premium Deck Series: Slivers |
| 139 | Sliver Overlord | Tony Szczudlo | White/Blue/Black/Red/Green | R | Scourge |
| Sliver Queen | Ron Spencer | White/Blue/Black/Red/Green | R | Stronghold |
| 211 | Sliver Queen | Ron Spencer | White/Blue/Black/Red/Green | M | Tempest Remastered |
| 163 | Sliversmith | John Avon | | U | Future Sight |
| 273 | Sliversmith | John Avon | | U | Time Spiral Remastered |
| 99 | Sliv-Mizzet, Hivemind (playtest) | Jeff Stewart | Blue/Red | C | Mystery Booster |
| 69 | Slobad, Goblin Tinkerer | Kev Walker | Red | R | Darksteel |
| 118 | Slobad, Goblin Tinkerer | Kev Walker | Red | R | The Brothers' War Commander |
| 133 | Slobad, Goblin Tinkerer | Kev Walker | Red | R | Commander 2016 |
| 149 | Slobad, Iron Goblin | Chris Seaman | Red | R | Phyrexia: All Will Be One |
| 311 | Slobad, Iron Goblin | Dominik Mayer | Red | R | Phyrexia: All Will Be One |
| 242 | Slogurk, the Overslime | Nicholas Gregory | Blue/Green | R | Innistrad: Midnight Hunt |
| 324 | Slogurk, the Overslime | Robbie Trevino | Blue/Green | R | Innistrad: Midnight Hunt |
| 59 | Sloppity Bilepiper | Ørjan Ruttenborg Svendsen | Black | R | Warhammer 40,000 Commander |
| 42 | Slow Motion | Todd Lockwood | Blue | C | Urza's Legacy |
| 98 | Sludge Crawler | Johann Bodin | Black | C | Battle for Zendikar |
| 76 | Sludge Monster | Svetlin Velinov | Blue | R | Innistrad: Midnight Hunt |
| 340 | Sludge Monster | Svetlin Velinov | Blue | R | Innistrad: Midnight Hunt |
| 735 | Sludge Monster | Svetlin Velinov | Blue | R | Commander Legends: Battle for Baldur's Gate |
| 95 | Sludge Strider | Franz Vohwinkel | White/Blue/Black | U | Planechase |
| 126 | Sludge Strider | Franz Vohwinkel | White/Blue/Black | U | Conflux |
| 43 | Sludge Titan | Warren Mahy | Black/Green | R | Ravnica Clue Edition |
| 92 | Sluggishness | Pete Venters | Red | C | Urza's Legacy |
| 198 | Sluiceway Scorpion | Slawomir Maniak | Black/Green | C | Return to Ravnica |
| 52 | Slum Reaper | Karl Kopinski | Black | U | Guild Kit: Golgari |
| 77 | Slum Reaper | Karl Kopinski | Black | U | Return to Ravnica |
| 114 | Slum Reaper | Karl Kopinski | Black | C | Ultimate Masters |
| 160 | Slum Reaper | Karl Kopinski | Black | U | Battlebond |
| 148 | Slumbering Dragon | Chris Rahn | Red | R | Magic 2013 |
| 29 | Slumbering Keepguard | Andreia Ugrai | White | C | Wilds of Eldraine |
| 161 | Slumbering Tora | Doug Chaffee | | R | Betrayers of Kamigawa |
| 618 | Slumbering Waterways (playtest) | Kevin Dubell | | R | Mystery Booster 2: Convention Edition |
| 256 | Slurrk, All-Ingesting | Jehan Choo | Green | U | Commander Legends |
| 312 | Slurrk, All-Ingesting | Jehan Choo | Green | U | March of the Machine Commander |
| 584 | Slurrk, All-Ingesting | Jehan Choo | Green | U | Commander Legends |
| 32 | Sly Instigator | Justine Cruz | Blue | R | Commander 2021 |
| 359 | Sly Instigator | Justine Cruz | Blue | R | Commander 2021 |
| 736 | Sly Instigator | Justine Cruz | Blue | R | Commander Legends: Battle for Baldur's Gate |
| 72 | Sly Requisitioner | Dan Scott | Black | U | Aether Revolt |
| 106 | Sly Requisitioner | Dan Scott | Black | U | Kaladesh Remastered |
| 67 | Sly Spy (a) | Michael Phillippi | Black | U | Unstable |
| 67 | Sly Spy (b) | Michael Phillippi | Black | U | Unstable |
| 67 | Sly Spy (c) | Michael Phillippi | Black | U | Unstable |
| 67 | Sly Spy (d) | Michael Phillippi | Black | U | Unstable |
| 67 | Sly Spy (e) | Michael Phillippi | Black | U | Unstable |
| 67 | Sly Spy (f) | Michael Phillippi | Black | U | Unstable |
| 61 | Smallpox | Ryan Pancoast | Black | U | Duel Decks: Nissa vs. Ob Nixilis |
| 108 | Smallpox | Ryan Pancoast | Black | U | Magic 2012 |
| 125 | Smallpox | Ryan Pancoast | Black | U | Magic: The Gathering—Conspiracy |
| 131 | Smallpox | Janine Johnston | Black | U | Time Spiral |
| 139 | Smallpox | Janine Johnston | Black | U | Time Spiral Remastered |
| 45 | Smart Ass | Trevor Hairsine | Blue | C | Unhinged |
| 69 | Smash | Pete Venters | Red | C | Apocalypse |
| 143 | Smash | Paolo Parente | Red | C | Ravnica: City of Guilds |
| 235 | Smash | Parente | Red | C | Tenth Edition |
| 144 | Smash to Dust | Marc Simonetti | Red | C | Dominaria United |
| 107 | Smash to Smithereens | Pete Venters | Red | C | Shadowmoor |
| 124 | Smash to Smithereens | Pete Venters | Red | C | Modern Masters 2015 Edition |
| 163 | Smash to Smithereens | Pete Venters | Red | C | Magic Origins |
| 151 | Smashing Success | Slawomir Maniak | Red | C | Kaldheim |
| 231 | Sméagol, Helpful Guide | Campbell White | Black/Green | R | The Lord of the Rings: Tales of Middle Earth |
| 330 | Sméagol, Helpful Guide | Andreas Rocha | Black/Green | R | The Lord of the Rings: Tales of Middle Earth |
| 682 | Sméagol, Helpful Guide | Campbell White | Black/Green | R | The Lord of the Rings: Tales of Middle Earth |
| 173 | Smell Fear | Cristi Balanescu | Green | C | Modern Horizons 2 |
| 149 | Smelt | Zoltan Boros | Red | C | Magic 2013 |
| 156 | Smelt | Zoltan Boros | Red | C | Magic 2014 Core Set |
| 158 | Smelt | Zoltan Boros | Red | C | Core Set 2019 |
| 100 | Smelt//Herd//Saw (playtest) | Allison Steele | Red | C | Mystery Booster |
| 139 | Smelted Chargebug | Jonas De Ro | Red | C | Modern Horizons 3 |
| 18 | Smelting Vat | Robin Olausson | | R | The Brothers' War Commander |
| 65 | Smelting Vat | Robin Olausson | | R | The Brothers' War Commander |
| 39 | Smelt-Ward Gatekeepers | Daarken | Red | C | Dragon's Maze |
| 116 | Smelt-Ward Ignus | Jehan Choo | Red | U | Ravnica Allegiance |
| 116 | Smelt-Ward Minotaur | Wisnu Tan | Red | U | Guilds of Ravnica |
| 16 | Smirking Spelljacker | Borja Pindado | Blue | R | Outlaws of Thunder Junction Commander |
| 52 | Smirking Spelljacker | Borja Pindado | Blue | R | Outlaws of Thunder Junction Commander |
| Smite | Daren Bader | White | C | Stronghold |
| 25 | Smite | Zoltan Boros | White | C | Gatecrash |
| 28 | Smite | Daren Bader | White | C | Tempest Remastered |
| 43 | Smite | Cyril Van Der Haegen | White | C | Rise of the Eldrazi |
| 148 | Smite the Deathless | Alexander Mokhov | Red | C | The Lord of the Rings: Tales of Middle Earth |
| 599 | Smite the Deathless | Alexander Mokhov | Red | C | The Lord of the Rings: Tales of Middle Earth |
| 24 | Smite the Monstrous | Greg Staples | White | C | Ugin's Fate promos |
| 24 | Smite the Monstrous | Greg Staples | White | C | Khans of Tarkir |
| 29 | Smite the Monstrous | Jason Felix | White | C | Duel Decks: Heroes vs. Monsters |
| 33 | Smite the Monstrous | Jason Felix | White | C | Innistrad |
| 42 | Smite the Monstrous | Izzy | White | C | Zendikar Rising |
| 49 | Smite the Monstrous | Jakub Kasper | White | C | Battle for Zendikar |
| 109 | Smiting Helix | Evan Shipard | Black | U | Modern Horizons |
| 105 | Smitten Swordmaster | Taylor Ingvarsson | Black | C | Throne of Eldraine |
| 268 | Smitten Swordmaster | Taylor Ingvarsson | Black | C | March of the Machine Commander |
| 79 | Smog Elemental | Yeong-Hao Han | Black | U | Gatecrash |
| 63 | Smogsteed Rider | Alex Horley-Orlandelli | Black | U | Guildpact |
| Smoke | Tom Kyffin | Red | R | Fifth Edition |
| Smoke | Jesper Myrfors | Red | R | Fourth Edition |
| Smoke | Jesper Myrfors | Red | R | Revised Edition |
| Smoke | Jesper Myrfors | Red | R | Unlimited Edition |
| Smoke | Jesper Myrfors | Red | R | Limited Edition Beta |
| Smoke | Jesper Myrfors | Red | R | Limited Edition Alpha |
| 137 | Smoke | Jesper Myrfors | Red | R | Masters Edition IV |
| 75 | Smoke Bomb | Borja Pindado | | U | Assassin's Creed |
| 259 | Smoke Bomb | Borja Pindado | | U | Assassin's Creed |
| 69 | Smoke Shroud | Micah Epstein | Blue | C | Modern Horizons |
| 22 | Smoke Spirits' Aid | Uriah Voth | Red | R | Kamigawa: Neon Dynasty Commander |
| 62 | Smoke Spirits' Aid | Uriah Voth | Red | R | Kamigawa: Neon Dynasty Commander |
| 151 | Smoke Teller | Min Yum | Green | C | Khans of Tarkir |
| 66 | Smokebraider | Anthony S. Waters | Red | C | Planechase |
| 125 | Smokebraider | Anthony S. Waters | Red | C | Modern Masters 2015 Edition |
| 189 | Smokebraider | Anthony S. Waters | Red | C | Lorwyn |
| 81 | Smokespew Invoker | Thomas M. Baxa | Black | C | Legions |
| 11 | Smokestack | Daniel Ljunggren | | M | From the Vault: Annihilation (2014) |
| 232 | Smokestack | Scott Kirschner | | R | Mystery Booster 2: Convention Edition |
| 282 | Smokestack | Daniel Ljunggren | | R | Vintage Masters |
| 309 | Smokestack | Scott Kirschner | | R | Urza's Saga |
| 235 | Smoky Lounge | Marco Gorlei | Red | U | Duskmourn: House of Horror |
| 78 | Smolder Initiate | Chippy | Black | C | Shadowmoor |
| 42 | Smoldering Butcher | Zoltan Boros & Gabor Szikszai | Black | C | Eventide |
| Smoldering Crater | Mark Tedin | | C | Beatdown Box Set |
| 257 | Smoldering Crater | Mark Tedin | | C | Dominaria Remastered |
| 268 | Smoldering Crater | Mark Tedin | | C | Commander Anthology 2018 |
| 308 | Smoldering Crater | Mark Tedin | | C | Commander 2015 |
| 312 | Smoldering Crater | Mark Tedin | | C | Commander 2014 |
| 313 | Smoldering Crater | Mark Tedin | | C | Ikoria Commander |
| 325 | Smoldering Crater | Mark Tedin | | C | Commander 2013 Edition |
| 328 | Smoldering Crater | Mark Tedin | | C | Urza's Saga |
| 115 | Smoldering Efreet | Chase Stone | Red | C | Fate Reforged |
| 600 | Smoldering Efreet | Chase Stone | Red | C | Jumpstart 2022 |
| 159 | Smoldering Egg | Simon Dominic | Red | R | Innistrad: Midnight Hunt |
| 358 | Smoldering Egg | Simon Dominic | Red | R | Innistrad: Midnight Hunt |
| 3 | Smoldering Marsh | Titus Lunter | | M | Zendikar Expeditions |
| 183 | Smoldering Marsh | Adam Paquette | | R | Innistrad: Crimson Vow Commander |
| 202 | Smoldering Marsh | Adam Paquette | | R | The Brothers' War Commander |
| 234 | Smoldering Marsh | Adam Paquette | | R | Dominaria United Commander |
| 247 | Smoldering Marsh | Adam Paquette | | R | Battle for Zendikar |
| 262 | Smoldering Marsh | Adam Paquette | | R | Adventures in the Forgotten Realms Commander |
| 292 | Smoldering Marsh | Erikas Perl | | R | Magic The Gathering—Fallout |
| 299 | Smoldering Marsh | Adam Paquette | | R | Duskmourn: House of Horror Commander |
| 307 | Smoldering Marsh | Drew Tucker | | R | Doctor Who Commander |
| 314 | Smoldering Marsh | Adam Paquette | | R | Ikoria Commander |
| 321 | Smoldering Marsh | Adam Paquette | | R | Outlaws of Thunder Junction Commander |
| 332 | Smoldering Marsh | Logan Feliciano | | R | The Lord of the Rings: Tales of Middle Earth Commander |
| 353 | Smoldering Marsh | Adam Paquette | | R | The Lost Caverns of Ixalan Commander |
| 379 | Smoldering Marsh | Adam Paquette | | R | Modern Horizons 3 Commander |
| 428 | Smoldering Marsh | Adam Paquette | | R | Streets of New Capenna Commander |
| 510 | Smoldering Marsh | Erikas Perl | | R | Magic The Gathering—Fallout |
| 517 | Smoldering Marsh | Drew Tucker | | R | Doctor Who Commander |
| 1036 | Smoldering Marsh | Adam Paquette | | R | Commander Masters |
| 96 | Smoldering Spires | Rob Alexander | | C | Archenemy: Nicol Bolas |
| 143 | Smoldering Spires | Rob Alexander | | C | Worldwake |
| 30 | Smoldering Stagecoach | Billy Christian | Red | R | Outlaws of Thunder Junction Commander |
| 66 | Smoldering Stagecoach | Billy Christian | Red | R | Outlaws of Thunder Junction Commander |