| 103 | Shoving Match | Dave Dorman | Blue | U | Mercadian Masques |
| 21 | Show and Tell | Donato Giancola | Blue | M | Special Guests |
| 96 | Show and Tell | Jeff Laubenstein | Blue | R | Urza's Saga |
| 121 | Show and Tell | Zack Stella | Blue | M | Conspiracy: Take the Crown |
| 188 | Shower of Arrows | Manuel Castañón | Green | C | The Lord of the Rings: Tales of Middle Earth |
| 639 | Shower of Arrows | Manuel Castañón | Green | C | The Lord of the Rings: Tales of Middle Earth |
| 102 | Showstopper | Steve Prescott | Black/Red | U | Dragon's Maze |
| 178 | Shredding Winds | Christopher Moeller | Green | C | Theros |
| 141 | Shreds of Sanity | Yeong-Hao Han | Red | U | Eldritch Moon |
| 176 | Shreds of Sanity | Yeong-Hao Han | Red | U | Shadows Over Innistrad Remastered |
| 232 | Shrewd Storyteller | David Palumbo | White/Green | U | Duskmourn: House of Horror |
| 103 | Shriekdiver | Piotr Dura | Black | C | War of the Spark |
| 15 | Shrieking Grotesque | Dany Orizio | White | C | Guildpact |
| 31 | Shrike Force | Néstor Ossandón Leal | White | U | Bloomburrow |
| 168 | Shrill Howler | Matt Stewart | Green | U | Eldritch Moon |
| 214 | Shrill Howler | Matt Stewart | Green | U | Shadows Over Innistrad Remastered |
| 152 | Shrine of Boundless Growth | Karl Kopinski | | U | New Phyrexia |
| 154 | Shrine of Limitless Power | Min Yum | | U | New Phyrexia |
| 19 | Shu Cavalry | Li Xiaohua | White | C | Portal Three Kingdoms |
| 23 | Shu Cavalry | Li Xiaohua | White | C | Masters Edition III |
| 20 | Shu Defender | Sun Nan | White | C | Portal Three Kingdoms |
| 24 | Shu Foot Soldiers | Xu Tan | White | C | Portal Three Kingdoms |
| 26 | Shu Grain Caravan | Li Wang | White | C | Portal Three Kingdoms |
| 52 | Shu Yun, the Silent Tempest | David Gaillet | Blue | R | Fate Reforged |
| 68 | Shunt | Greg Hildebrandt | Red | R | Darksteel |
| 233 | Shunt | Greg Hildebrandt | Red | R | Tenth Edition |
| 119 | Sibsig Icebreakers | Zoltan Boros | Black | C | Dragons of Tarkir |
| 95 | Sibylline Soothsayer | Anna Pavleeva | Red | U | Doctor Who Commander |
| 25 | Sicarian Infiltrator | Games Workshop | Blue | U | Warhammer 40,000 Commander |
| 66 | Sick and Tired | Val Mayerik | Black | C | Urza's Legacy |
| 50 | Sickle Dancer | Steve Argyle | Black | C | Battlebond |
| 157 | Sickleslicer | Jason Felix | | U | New Phyrexia |
| 228 | Sickleslicer | Jason Felix | | C | Modern Masters 2015 Edition |
| 287 | Sickleslicer | Jason Felix | | C | Double Masters |
| 110 | Side to Side | Jim Nelson | Green | U | Unhinged |
| 134 | Sidewinder Naga | Victor Adame Minguez | Green | C | Hour of Devastation |
| 218 | Sidewinder Naga | Victor Adame Minguez | Green | C | Amonkhet Remastered |
| 99 | Siege Modification | Sung Choi | Red | U | Aether Revolt |
| 145 | Siege Modification | Sung Choi | Red | U | Kaladesh Remastered |
| 37 | Siege Striker | Zoltan Boros | White | U | Core Set 2021 |
| 25 | Siege Veteran | Darren Tan | White | R | The Brothers' War |
| 306 | Siege Veteran | Darren Tan | White | R | The Brothers' War |
| 9 | Sift Through Sands | Anthony S. Waters | Blue | C | Duel Decks: Mind vs. Might |
| 84 | Sift Through Sands | Anthony S. Waters | Blue | C | Champions of Kamigawa |
| 35 | Sigarda's Imprisonment | Bryan Sola | White | C | Innistrad: Crimson Vow |
| 147 | Sigil of Myrkul | David Astruga | Black | U | Commander Legends: Battle for Baldur's Gate |
| 168 | Sigil of Myrkul | David Astruga | Black | U | Alchemy Horizons: Baldur's Gate |
| 78 | Sigil of the Nayan Gods | Warren Mahy | White/Green | C | Alara Reborn |
| 49 | Sigil Tracer | Dan Scott | Blue | R | Morningtide |
| 37 | Sigiled Sentinel | Volkan Baga | White | C | March of the Machine |
| 244 | Sigiled Sword of Valeron | John Stanko | | R | Core Set 2019 |
| 377 | Sigiled Sword of Valeron | John Stanko | | R | March of the Machine Commander |
| 168 | Signature Slam | Slawomir Maniak | Green | U | Modern Horizons 3 |
| 29 | Sigrid, God-Favored | Johannes Voss | White | R | Kaldheim |
| 301 | Sigrid, God-Favored | Dibujante Nocturno | White | R | Kaldheim |
| 66 | Sigurd, Jarl of Ravensthorpe | Alexander Gering | White/Red/Green | R | Assassin's Creed |
| 154 | Sigurd, Jarl of Ravensthorpe | Jessie Lam | White/Red/Green | R | Assassin's Creed |
| 249 | Sigurd, Jarl of Ravensthorpe | Alexander Gering | White/Red/Green | R | Assassin's Creed |
| 43 | Silas Renn, Seeker Adept | Joseph Meehan | Blue/Black | M | Commander 2016 |
| 129 | Silas Renn, Seeker Adept | Joseph Meehan | Blue/Black | M | The Brothers' War Commander |
| 536 | Silas Renn, Seeker Adept | Joseph Meehan | Blue/Black | M | Commander Legends |
| 51 | Silent Attendant | Rebecca Guay | White | C | Urza's Saga |
| 95 | Silhana Starfletcher | Alex Horley-Orlandelli | Green | C | Guildpact |
| 148 | Silkbind Faerie | Matt Cavotta | White/Blue | C | Shadowmoor |
| 125 | Silkweaver Elite | Magali Villeneuve | Green | C | Aether Revolt |
| 31 | Silkwing Scout | Rebecca Guay | Blue | C | Dissension |
| 123 | Silt Crawler | Arnie Swekel | Green | C | Prophecy |
| 243 | Silumgar Monument | Daniel Ljunggren | | U | Dragons of Tarkir |
| 76 | Silumgar Sorcerer | Jeff Simpson | Blue | U | Dragons of Tarkir |
| 77 | Silumgar Spell-Eater | Dave Kendall | Blue | U | Dragons of Tarkir |
| 80 | Silundi Vision | Randy Vargas | Blue | U | Zendikar Rising |
| 254 | Silvanus's Invoker | Leanna Crossan | Green | C | Commander Legends: Battle for Baldur's Gate |
| 125 | Silver Drake | Alan Pollack | White/Blue | C | Planeshift |
| 36 | Silverblade Paladin | Jason Chan | White | R | Avacyn Restored |
| 88 | Silverblade Paladin | Jason Chan | White | R | Commander 2014 |
| 31 | Silverflame Squire | Lie Setiawan | White | C | Throne of Eldraine |
| 228 | Silverfur Partisan | Izzy | Green | R | Shadows over Innistrad |
| 233 | Silverquill Pledgemage | Denman Rooke | White/Black | C | Strixhaven: School of Mages |
| 122 | Silversmote Ghoul | Bryan Sola | Black | U | Core Set 2021 |
| 154 | Silversmote Ghoul | Bryan Sola | Black | U | Commander 2021 |
| 113 | Simian Grunts | Pete Venters | Green | C | Urza's Legacy |
| 232 | Simian Grunts | Pete Venters | Green | C | Vintage Masters |
| 205 | Simian Simulacrum | Randy Vargas | | R | The Brothers' War |
| 352 | Simian Simulacrum | Randy Vargas | | R | The Brothers' War |
| 122 | Simian Spirit Guide | Dave DeVries | Red | C | Planar Chaos |
| 148 | Simian Spirit Guide | Dave DeVries | Red | U | Masters 25 |
| 190 | Simian Spirit Guide | Lucas Graciano | Red | C | Time Spiral Remastered |
| 145 | Simic Cluestone | Raoul Vitale | | C | Dragon's Maze |
| 49 | Simic Fluxmage | Karl Kopinski | Blue | U | Gatecrash |
| 237 | Simic Keyrune | Daniel Ljunggren | | U | Gatecrash |
| 265 | Simic Keyrune | Daniel Ljunggren | | U | Commander 2015 |
| 240 | Simic Locket | Yeong-Hao Han | | C | Ravnica Allegiance |
| 50 | Simic Manipulator | Maciej Kuciara | Blue | R | Gatecrash |
| 154 | Simple | Parente | White/Green | U | Dissension |
| 6 | Simulacrum Synthesizer | Anton Solovianchyk | Blue | M | Outlaws of Thunder Junction: The Big Score |
| 36 | Simulacrum Synthesizer | Svetlin Velinov | Blue | M | Outlaws of Thunder Junction: The Big Score |
| 71 | Simulacrum Synthesizer | Anton Solovianchyk | Blue | M | Outlaws of Thunder Junction: The Big Score |
| 45 | Sin Collector | Mike Bierek | White/Black | U | Guild Kit: Orzhov |
| 103 | Sin Collector | Mike Bierek | White/Black | U | Dragon's Maze |
| 183 | Sin Collector | Mike Bierek | White/Black | U | Modern Masters 2017 Edition |
| 177 | Sin Prodder | Jack Wang | Red | R | Shadows Over Innistrad Remastered |
| 181 | Sin Prodder | Jack Wang | Red | R | Shadows over Innistrad |
| 363 | Sin Prodder | Jack Wang | Red | R | Jumpstart |
| 66 | Singer of Swift Rivers | Gabor Szikszai | Blue/Green | R | The Lost Caverns of Ixalan Commander |
| 98 | Singer of Swift Rivers | Gabor Szikszai | Blue/Green | R | The Lost Caverns of Ixalan Commander |
| 54 | Sinister Sabotage | Mathias Kollros | Blue | U | Guilds of Ravnica |
| 61 | Sinister Sabotage | Mathias Kollros | Blue | C | Ravnica Remastered |
| 241 | Sink into Stupor | Peter Polach | Blue | U | Modern Horizons 3 |
| 51 | Sinking Feeling | Ron Brown | Blue | C | Shadowmoor |
| 45 | Sinuous Striker | Svetlin Velinov | Blue | U | Hour of Devastation |
| 144 | Siona, Captain of the Pyleas | Chris Rallis | White/Green | U | Wilds of Eldraine Commander |
| 226 | Siona, Captain of the Pyleas | Chris Rallis | White/Green | U | Theros Beyond Death |
| 78 | Siren Lookout | Chris Rallis | Blue | C | Ixalan |
| 155 | Siren of the Silent Song | Anthony Palumbo | Blue/Black | U | Born of the Gods |
| 29 | Sisay, Weatherlight Captain | Anna Steinbauer | White | R | Modern Horizons |
| Sisters of the Flame | Jesper Myrfors | Red | C | Fourth Edition |
| Sisters of the Flame | Jesper Myrfors | Red | U | The Dark |
| 22 | Sivvi's Valor | Jeff Miracola | White | R | Nemesis |
| 169 | Six | Andrew Mar | Green | R | Modern Horizons 3 |
| 370 | Six | Ivan Shavrin | Green | R | Modern Horizons 3 |
| 430 | Six | Andrew Mar | Green | R | Modern Horizons 3 |
| 484 | Six | Andrew Mar | Green | R | Modern Horizons 3 |
| 92 | Six-Sided Die | Ben Wootten | Black | C | Unfinity |
| 213 | Sizzle | Brian Snoddy | Red | C | Mercadian Masques |
| 224 | Sizzle | Christopher Moeller | Red | C | Eighth Edition |
| 77 | Skaab Ruinator | Chris Rahn | Blue | M | Innistrad |
| 128 | Skaab Ruinator | Chris Rahn | Blue | M | Duskmourn: House of Horror Commander |
| Skeleton Scavengers | Brian Snoddy | Black | R | Stronghold |
| 127 | Skeleton Shard | Doug Chaffee | | U | Planechase |
| 242 | Skeleton Shard | Doug Chaffee | | U | Mirrodin |
| 26 | Skewer the Critics | Florey | Red | U | Outlaws of Thunder Junction Breaking News |
| 115 | Skewer the Critics | Heonhwa Choe | Red | C | Ravnica Allegiance |
| 124 | Skewer the Critics | Heonhwa Choe | Red | C | Ravnica Remastered |
| 340 | Skewer the Critics | Heonhwa | Red | C | Ravnica Remastered |
| 56 | Skill Borrower | Shelly Wan | Blue | R | Shards of Alara |
| 73 | Skilled Animator | Jason A. Engle | Blue | U | Core Set 2019 |
| 98 | Skilled Animator | Jason A. Engle | Blue | U | Commander Legends |
| 348 | Skilled Animator | Jason A. Engle | Blue | U | Jumpstart 2022 |
| 47 | Skirk Commando | Dave Dorman | Red | C | Archenemy |
| 150 | Skirk Commando | Slawomir Maniak | Red | C | Masters 25 |
| 228 | Skirk Commando | Dave Dorman | Red | C | Onslaught |
| 52 | Skirk Shaman | Chippy | Red | C | Duel Decks Anthology, Elves vs. Goblins |
| 52 | Skirk Shaman | Chippy | Red | C | Duel Decks: Elves vs. Goblins |
| 123 | Skirk Shaman | Chippy | Red | C | Planar Chaos |
| 191 | Skirk Shaman | Chippy | Red | C | Time Spiral Remastered |
| 104 | Skirsdag Supplicant | Anastasia Ovchinnikova | Black | C | Eldritch Moon |
| 468 | Skirsdag Supplicant | Anastasia Ovchinnikova | Black | C | Jumpstart 2022 |
| 717 | Skittering Cicada | Denis Zhbankov | | R | Commander Masters |
| 750 | Skittering Cicada | Denis Zhbankov | | R | Commander Masters |
| 36 | Skittering Crustacean | Jason Felix | Blue | C | Conspiracy: Take the Crown |
| Skittering Horror | Mark Zug | Black | C | Beatdown Box Set |
| 70 | Skittering Horror | Mark Zug | Black | C | Urza's Destiny |
| 137 | Skittering Precursor | Tuan Duong Chu | Red | U | Modern Horizons 3 |
| 230 | Skittering Surveyor | Dan Scott | | C | Dominaria |
| 264 | Skittering Surveyor | Igor Kieryluk | | C | March of the Machine |
| 486 | Skittering Surveyor | Dan Scott | | C | Jumpstart |
| 140 | Skophos Reaver | Andrew Mar | Red | C | Modern Horizons 2 |
| 58 | Skorpekh Lord | Adrián Rodríguez Pérez | Black | R | Warhammer 40,000 Commander |