| Soaring SeacliffDuel Decks: Venser vs. Koth · 37 | Duel Decks: Venser vs. Koth | 37 | Common | €0.07 |
| Soaring SeacliffZendikar · 225 | Zendikar | 225 | Common | €0.14 |
| Soaring Show-OffBattlebond · 40 | Battlebond | 40 | Common | $0.12 |
| Social ClimberStreets of New Capenna · 157 | Streets of New Capenna | 157 | Common | €0.11 |
| Sojourner's CompanionModern Horizons 2 · 235 | Modern Horizons 2 | 235 | Common | €0.16 |
| Sojourner's EnforcermiteUnknown Event · CA06b | Unknown Event | CA06b | Common | $39.99 |
| SokenzanMarch of the Machine Commander · 157 | March of the Machine Commander | 157 | Common | €0.19 |
| SokenzanPlanechase Planes · 36 | Planechase Planes | 36 | Common | €0.83 |
| SokenzanPlanechase Anthology Planes · 72 | Planechase Anthology Planes | 72 | Common | €0.29 |
| Sokenzan BruiserChampions of Kamigawa · 188 | Champions of Kamigawa | 188 | Common | $0.06 |
| Sokenzan SpellbladeSaviors of Kamigawa · 115 | Saviors of Kamigawa | 115 | Common | €0.10 |
| Sokka's Sword TrainingAvatar: The Last Airbender Eternal · 84 | Avatar: The Last Airbender Eternal | 84 | Common | $0.16 |
| Solar BlastDominaria Remastered · 140 | Dominaria Remastered | 140 | Common | €0.06 |
| Solar BlastOnslaught · 234 | Onslaught | 234 | Common | €0.08 |
| Solar BlastThe List Tokens · ONS-234 | The List Tokens | ONS-234 | Common | $0.04 |
| Solar BlastVintage Masters · 187 | Vintage Masters | 187 | Common | — |
| Soldevi AdnateAlliances · 60a | Alliances | 60a | Common | €1.28 |
| Soldevi AdnateAlliances · 60b | Alliances | 60b | Common | €1.20 |
| Soldevi HereticAlliances · 33a | Alliances | 33a | Common | €0.08 |
| Soldevi HereticAlliances · 33b | Alliances | 33b | Common | €0.11 |
| Soldevi SageAlliances · 34a | Alliances | 34a | Common | $0.11 |
| Soldevi SageAlliances · 34b | Alliances | 34b | Common | €0.10 |
| Soldevi SentryAlliances · 132a | Alliances | 132a | Common | €0.18 |
| Soldevi SentryAlliances · 132b | Alliances | 132b | Common | $0.16 |
| Soldevi Steam BeastAlliances · 133a | Alliances | 133a | Common | €0.12 |
| Soldevi Steam BeastAlliances · 133b | Alliances | 133b | Common | €0.15 |
| Soldier of the Grey HostThe Lord of the Rings: Tales of Middle-earth · 32 | The Lord of the Rings: Tales of Middle-earth | 32 | Common | €0.06 |
| Soldier of the Grey HostThe Lord of the Rings: Tales of Middle-earth · 483 | The Lord of the Rings: Tales of Middle-earth | 483 | Common | €0.19 |
| Soldier of the Grey HostThe Hobbit Eternal · 171 | The Hobbit Eternal | 171 | Common | $0.57 |
| Soldier OnMarvel Super Heroes Commander · 843 | Marvel Super Heroes Commander | 843 | Common | $0.15 |
| Soldier ReplicaMirrodin · 244 | Mirrodin | 244 | Common | $0.04 |
| Soldiers of the WatchAlchemy Horizons: Baldur's Gate · 28 | Alchemy Horizons: Baldur's Gate | 28 | Common | — |
| Sold OutAvatar: The Last Airbender · 119 | Avatar: The Last Airbender | 119 | Common | €0.08 |
| Solemn OfferingMagic 2010 · 33 | Magic 2010 | 33 | Common | $0.12 |
| Solemn OfferingMagic 2011 · 32 | Magic 2011 | 32 | Common | $0.03 |
| Solemn OfferingMagic 2014 · 36 | Magic 2014 | 36 | Common | €0.11 |
| Solemn OfferingMagic 2015 · 33 | Magic 2015 | 33 | Common | €0.03 |
| SolfataraVisions · 93 | Visions | 93 | Common | $0.11 |
| Sol GrailMasters Edition III · 201 | Masters Edition III | 201 | Common | — |
| SolidarityEighth Edition · 46 | Eighth Edition | 46 | Common | €0.21 |
| SolidarityEighth Edition · 46★ | Eighth Edition | 46★ | Common | $0.25 |
| SolidarityUrza's Destiny · 20 | Urza's Destiny | 20 | Common | $0.28 |
| Solid FootingIkoria: Lair of Behemoths · 31 | Ikoria: Lair of Behemoths | 31 | Common | €0.06 |
| Solitary CamelHour of Devastation · 23 | Hour of Devastation | 23 | Common | €0.05 |
| Solitary CamelAmonkhet Remastered · 36 | Amonkhet Remastered | 36 | Common | — |
| Solitary Hunter // One of the PackShadows over Innistrad · 229 | Shadows over Innistrad | 229 | Common | €0.07 |
| SolitonScars of Mirrodin · 204 | Scars of Mirrodin | 204 | Common | €0.10 |
| Sol Ring30th Anniversary Edition · 131 | 30th Anniversary Edition | 131 | Common | €10.00 |
| Sol Ring30th Anniversary Edition · 428 | 30th Anniversary Edition | 428 | Common | €98.15 |
| Solstice ZealotModern Horizons 3 · 43 | Modern Horizons 3 | 43 | Common | €0.04 |