| Stronghold ConfessorDominaria · 105 | Dominaria | 105 | Common | €0.04 |
| Stronghold ConfessorFoundations Jumpstart · 490 | Foundations Jumpstart | 490 | Common | €0.12 |
| Stronghold DisciplineConspiracy · 126 | Conspiracy | 126 | Common | $0.08 |
| Stronghold DisciplineNemesis · 73 | Nemesis | 73 | Common | €0.10 |
| Stronghold FurnaceMarch of the Machine Commander · 160 | March of the Machine Commander | 160 | Common | €0.29 |
| Stronghold FurnacePlanechase Planes · 37 | Planechase Planes | 37 | Common | €0.72 |
| Stronghold FurnacePlanechase Anthology Planes · 75 | Planechase Anthology Planes | 75 | Common | €0.26 |
| Stroopwafel CafeBlack Lotus Unknown Planechase · PLA022 | Black Lotus Unknown Planechase | PLA022 | Common | — |
| Structural CollapseGatecrash · 107 | Gatecrash | 107 | Common | $0.03 |
| Structural DistortionShadows over Innistrad · 185 | Shadows over Innistrad | 185 | Common | €0.13 |
| Struggle for SkemfarKaldheim · 196 | Kaldheim | 196 | Common | €0.06 |
| Struggle for SkemfarThe List Tokens · KHM-196 | The List Tokens | KHM-196 | Common | $0.15 |
| Stuck in Summoner's SanctumFinal Fantasy · 76 | Final Fantasy | 76 | Common | €0.04 |
| Student of OjutaiDragons of Tarkir · 40 | Dragons of Tarkir | 40 | Common | $0.05 |
| Student of OjutaiIconic Masters · 33 | Iconic Masters | 33 | Common | €0.06 |
| Studious First-Year // Rampant GrowthSecrets of Strixhaven · 162 | Secrets of Strixhaven | 162 | Common | €0.17 |
| Study BreakStrixhaven: School of Mages · 34 | Strixhaven: School of Mages | 34 | Common | €0.06 |
| Study HallCommander 2021 · 80 | Commander 2021 | 80 | Common | €0.08 |
| Study HallSecrets of Strixhaven Commander · 407 | Secrets of Strixhaven Commander | 407 | Common | €0.16 |
| Stuffed BearInnistrad: Double Feature · 259 | Innistrad: Double Feature | 259 | Common | €0.16 |
| Stuffed BearInnistrad: Midnight Hunt · 259 | Innistrad: Midnight Hunt | 259 | Common | €0.12 |
| StunTenth Edition · 240 | Tenth Edition | 240 | Common | €0.22 |
| StunInvasion · 172 | Invasion | 172 | Common | €0.12 |
| StunTempest · 207 | Tempest | 207 | Common | €0.15 |
| StunTempest Remastered · 163 | Tempest Remastered | 163 | Common | — |
| Stunning StrikeCommander Legends: Battle for Baldur's Gate · 97 | Commander Legends: Battle for Baldur's Gate | 97 | Common | €0.07 |
| Stupefying TouchEternal Masters · 74 | Eternal Masters | 74 | Common | €0.05 |
| Stymied HopesTheros · 64 | Theros | 64 | Common | €0.05 |
| SubcontractUnstable · 73 | Unstable | 73 | Common | €0.05 |
| SubdueLegends · 206 | Legends | 206 | Common | $0.42 |
| Submerged BoneyardAether Revolt · 194 | Aether Revolt | 194 | Common | €0.05 |
| Submerged BoneyardAmonkhet · 284 | Amonkhet | 284 | Common | €0.10 |
| Submerged BoneyardCore Set 2019 · 257 | Core Set 2019 | 257 | Common | $0.06 |
| Subterranean CavernMarvel Super Heroes · 273 | Marvel Super Heroes | 273 | Common | €0.03 |
| Subterranean ScoutDominaria Remastered · 143 | Dominaria Remastered | 143 | Common | €0.03 |
| Subterranean ScoutJumpstart 2022 · 609 | Jumpstart 2022 | 609 | Common | $0.05 |
| Subterranean ScoutMagic Origins · 164 | Magic Origins | 164 | Common | €0.04 |
| Subterranean ShamblerTime Spiral · 178 | Time Spiral | 178 | Common | $0.06 |
| Subtle StrikeKaladesh · 100 | Kaladesh | 100 | Common | €0.02 |
| Subtle StrikeFoundations Jumpstart · 491 | Foundations Jumpstart | 491 | Common | $0.23 |
| Subtle StrikeThe List Tokens · KLD-100 | The List Tokens | KLD-100 | Common | €0.05 |
| Subtle StrikeZendikar Rising · 128 | Zendikar Rising | 128 | Common | $0.06 |
| Subtle StrikeKaladesh Remastered · 107 | Kaladesh Remastered | 107 | Common | — |
| Suburban SanctuaryMarvel's Spider-Man · 185 | Marvel's Spider-Man | 185 | Common | €0.05 |
| Suburban SanctuaryThrough the Omenpaths · 185 | Through the Omenpaths | 185 | Common | — |
| Subway TrainMarvel's Spider-Man · 178 | Marvel's Spider-Man | 178 | Common | €0.02 |
| Subway TrainThrough the Omenpaths · 178 | Through the Omenpaths | 178 | Common | — |
| Success!Unstable · 24 | Unstable | 24 | Common | $0.06 |
| Succumb to TemptationEldritch Moon · 107 | Eldritch Moon | 107 | Common | $0.11 |
| Sudden BreakthroughJumpstart 2022 · 610 | Jumpstart 2022 | 610 | Common | $0.30 |