| Soltari EmissaryVintage Masters · 46 | Vintage Masters | 46 | Common | — |
| Soltari Foot SoldierBattle Royale Box Set · 74 | Battle Royale Box Set | 74 | Common | $0.51 |
| Soltari Foot SoldierTempest · 43 | Tempest | 43 | Common | €0.34 |
| Soltari LancerTempest · 44 | Tempest | 44 | Common | €0.13 |
| Soltari LancerTempest Remastered · 30 | Tempest Remastered | 30 | Common | — |
| Soltari TrooperThe List Tokens · TMP-47 | The List Tokens | TMP-47 | Common | $0.12 |
| Soltari TrooperTempest · 47 | Tempest | 47 | Common | €0.25 |
| Soltari TrooperTempest Remastered · 33 | Tempest Remastered | 33 | Common | — |
| Soltari TrooperVintage Masters · 47 | Vintage Masters | 47 | Common | — |
| Soltari VisionaryExodus · 20 | Exodus | 20 | Common | €0.28 |
| Soltari VisionaryWorld Championship Decks 1998 Tokens · bh20 | World Championship Decks 1998 Tokens | bh20 | Common | €0.51 |
| Soltari VisionaryThe List Tokens · EXO-20 | The List Tokens | EXO-20 | Common | — |
| Solve for DisappointmentReality Fracture · 67 | Reality Fracture | 67 | Common | €0.02 |
| Somber HoverguardModern Masters 2015 · 57 | Modern Masters 2015 | 57 | Common | €0.04 |
| Somber HoverguardMirrodin · 51 | Mirrodin | 51 | Common | $0.04 |
| Somber HoverguardThe List Tokens · MM2-57 | The List Tokens | MM2-57 | Common | €0.15 |
| Somber HoverguardWorld Championship Decks 2004 Tokens · ap51 | World Championship Decks 2004 Tokens | ap51 | Common | €0.22 |
| Somberwald DryadDark Ascension · 126 | Dark Ascension | 126 | Common | €0.03 |
| Somberwald SpiderInnistrad · 202 | Innistrad | 202 | Common | €0.08 |
| Somberwald VigilanteAvacyn Restored · 156 | Avacyn Restored | 156 | Common | €0.02 |
| Somberwald VigilanteDuel Decks: Heroes vs. Monsters · 2 | Duel Decks: Heroes vs. Monsters | 2 | Common | €0.03 |
| Something Worth SavingReality Fracture · 114 | Reality Fracture | 114 | Common | €0.05 |
| SomnomancerShadowmoor · 149 | Shadowmoor | 149 | Common | €0.05 |
| Sonar StrikeBloomburrow · 32 | Bloomburrow | 32 | Common | €0.05 |
| Songbird, Sonic ScreamerMarvel Super Heroes Commander · 762 | Marvel Super Heroes Commander | 762 | Common | €0.16 |
| Song of BloodVisions · 94 | Visions | 94 | Common | $0.12 |
| Song of StupefactionThe Lost Caverns of Ixalan · 77 | The Lost Caverns of Ixalan | 77 | Common | €0.05 |
| Songs of the DamnedIce Age · 160 | Ice Age | 160 | Common | €1.50 |
| Songs of the DamnedMasters Edition II · 110 | Masters Edition II | 110 | Common | — |
| Sonic AssaultGuilds of Ravnica · 199 | Guilds of Ravnica | 199 | Common | €0.04 |
| Sonic BurstBeatdown Box Set · 46 | Beatdown Box Set | 46 | Common | $0.28 |
| Sonic BurstExodus · 103 | Exodus | 103 | Common | €0.14 |
| Sonic SeizureTorment · 115 | Torment | 115 | Common | €0.05 |
| Sootfeather FlockLegions · 82 | Legions | 82 | Common | €0.05 |
| Soothing BalmMercadian Masques · 48 | Mercadian Masques | 48 | Common | €0.07 |
| Soothing of SméagolThe Lord of the Rings: Tales of Middle-earth · 70 | The Lord of the Rings: Tales of Middle-earth | 70 | Common | €0.06 |
| Soothing of SméagolThe Lord of the Rings: Tales of Middle-earth · 521 | The Lord of the Rings: Tales of Middle-earth | 521 | Common | €0.43 |
| Soothsayer AdeptStrixhaven: School of Mages · 55 | Strixhaven: School of Mages | 55 | Common | €0.05 |
| Sootstoke KindlerShadowmoor · 195 | Shadowmoor | 195 | Common | €0.12 |
| SootwalkersShadowmoor · 196 | Shadowmoor | 196 | Common | €0.07 |
| Soratami CloudskaterChampions of Kamigawa · 86 | Champions of Kamigawa | 86 | Common | €0.13 |
| Soratami Mirror-GuardChampions of Kamigawa · 87 | Champions of Kamigawa | 87 | Common | €0.08 |
| Soratami RainshaperChampions of Kamigawa · 89 | Champions of Kamigawa | 89 | Common | €0.12 |
| Soratami RainshaperSalvat 2005 · H30 | Salvat 2005 | H30 | Common | €0.11 |
| Soratami RainshaperSalvat 2005 · H43 | Salvat 2005 | H43 | Common | €0.11 |
| Sorcerer of the FangCore Set 2020 · 114 | Core Set 2020 | 114 | Common | €0.05 |
| Sorcerous SightPortal · 68 | Portal | 68 | Common | $0.53 |
| Sorcerous SightThe List Tokens · POR-68 | The List Tokens | POR-68 | Common | $0.24 |
| Sorin's Remastered ManorBlack Lotus Unknown Planechase · PLA042 | Black Lotus Unknown Planechase | PLA042 | Common | — |
| Sorin's ThirstDuel Decks: Sorin vs. Tibalt · 21 | Duel Decks: Sorin vs. Tibalt | 21 | Common | €0.02 |