| Sibsig AppraiserTarkir: Dragonstorm · 56 | Tarkir: Dragonstorm | 56 | Common | €0.05 |
| Sibsig Appraiser // Sibsig AppraiserTarkir: Dragonstorm Art Series · 8 | Tarkir: Dragonstorm Art Series | 8 | — | — |
| Sibsig HostFate Reforged · 82 | Fate Reforged | 82 | Common | €0.04 |
| Sibsig IcebreakersDragons of Tarkir · 119 | Dragons of Tarkir | 119 | Common | $0.06 |
| Sibsig MuckdraggersFate Reforged · 83 | Fate Reforged | 83 | Uncommon | €0.06 |
| Sibsig's ArtisanAlchemy: Tarkir · 9 | Alchemy: Tarkir | 9 | Rare | — |
| Sibylline SoothsayerDoctor Who · 95 | Doctor Who | 95 | Uncommon | €0.26 |
| Sibylline SoothsayerDoctor Who · 700 | Doctor Who | 700 | Uncommon | $2.84 |
| Sicarian InfiltratorWarhammer 40,000 Commander · 25 | Warhammer 40,000 Commander | 25 | Uncommon | $4.14 |
| Sicarian InfiltratorWarhammer 40,000 Commander · 25★ | Warhammer 40,000 Commander | 25★ | Uncommon | $11.40 |
| Sicarian InfiltratorWarhammer 40,000 Commander Tokens · 8 | Warhammer 40,000 Commander Tokens | 8 | — | — |
| Sick and TiredUrza's Legacy · 66 | Urza's Legacy | 66 | Common | €0.05 |
| SickenUrza's Saga · 156 | Urza's Saga | 156 | Common | €0.09 |
| Sickening DreamsPremium Deck Series: Graveborn · 18 | Premium Deck Series: Graveborn | 18 | Uncommon | €0.66 |
| Sickening DreamsTorment · 83 | Torment | 83 | Uncommon | $3.61 |
| Sickening DreamsWorld Championship Decks 2003 Tokens · pk83sb | World Championship Decks 2003 Tokens | pk83sb | Uncommon | €1.16 |
| Sickening ShoalBetrayers of Kamigawa · 82 | Betrayers of Kamigawa | 82 | Rare | €4.64 |
| Sickle DancerBattlebond · 50 | Battlebond | 50 | Common | €0.05 |
| Sickle RipperModern Masters 2015 · 96 | Modern Masters 2015 | 96 | Common | €0.02 |
| Sickle RipperShadowmoor · 77 | Shadowmoor | 77 | Common | €0.12 |
| SickleslicerDouble Masters · 287 | Double Masters | 287 | Common | €0.07 |
| SickleslicerModern Masters 2015 · 228 | Modern Masters 2015 | 228 | Common | $0.05 |
| SickleslicerNew Phyrexia · 157 | New Phyrexia | 157 | Uncommon | €0.09 |
| Sidar JabariMirage · 39 | Mirage | 39 | Rare | $0.77 |
| Sidar JabariVintage Masters · 45 | Vintage Masters | 45 | Uncommon | — |
| Sidar Jabari of ZhalfirMarch of the Machine Commander · 5 | March of the Machine Commander | 5 | Mythic Rare | €0.48 |
| Sidar Jabari of ZhalfirMarch of the Machine Commander · 97 | March of the Machine Commander | 97 | Mythic Rare | €1.43 |
| Sidar Jabari of ZhalfirMarch of the Machine Commander · 138 | March of the Machine Commander | 138 | Mythic Rare | €0.18 |
| Sidar KondoVanguard Series · 306 | Vanguard Series | 306 | Rare | €5.73 |
| Sidar Kondo of JamuraaCommander 2016 · 42 | Commander 2016 | 42 | Mythic Rare | €0.90 |
| Sidar Kondo of JamuraaCommander Legends · 535 | Commander Legends | 535 | Mythic Rare | €1.18 |
| Sidar Kondo of JamuraaMurders at Karlov Manor Commander · 219 | Murders at Karlov Manor Commander | 219 | Mythic Rare | €0.24 |
| Sidar Kondo of JamuraaTarkir: Dragonstorm Commander · 303 | Tarkir: Dragonstorm Commander | 303 | Mythic Rare | €0.25 |
| Sidar Kondo of JamuraaTreasure Chest · 54 | Treasure Chest | 54 | Mythic Rare | — |
| Sidar Kondo of JamuraaMagic Online Promos · 86172 | Magic Online Promos | 86172 | Mythic Rare | — |
| Side QuestUnstable · 23 | Unstable | 23 | Uncommon | €0.07 |
| Sidequest: Card Collection // Magicked CardFinal Fantasy · 73 | Final Fantasy | 73 | Uncommon | €0.04 |
| Sidequest: Catch a Fish // Cooking CampsiteFinal Fantasy · 31 | Final Fantasy | 31 | Uncommon | €0.14 |
| Sidequest: Hunt the Mark // Yiazmat, Ultimate MarkFinal Fantasy · 119 | Final Fantasy | 119 | Uncommon | €0.11 |
| Sidequest: Hunt the Mark // Yiazmat, Ultimate MarkFinal Fantasy · 453 | Final Fantasy | 453 | Uncommon | €1.34 |
| Sidequest: Play Blitzball // World Champion, Celestial WeaponFinal Fantasy · 158 | Final Fantasy | 158 | Uncommon | €0.18 |
| Sidequest: Raise a Chocobo // Black ChocoboFinal Fantasy · 201 | Final Fantasy | 201 | Uncommon | €0.18 |
| SideswipeChampions of Kamigawa · 187 | Champions of Kamigawa | 187 | Uncommon | €0.06 |
| Side to SideUnhinged · 110 | Unhinged | 110 | Uncommon | €0.17 |
| Sidewinder NagaHour of Devastation · 134 | Hour of Devastation | 134 | Common | €0.06 |
| Sidewinder NagaAmonkhet Remastered · 218 | Amonkhet Remastered | 218 | Common | — |
| Sidewinder SliverSecret Lair Drop Tokens · 615 | Secret Lair Drop Tokens | 615 | Rare | €0.91 |
| Sidewinder SliverTime Spiral · 41 | Time Spiral | 41 | Common | €0.16 |
| Sidewinder SliverTime Spiral Remastered · 43 | Time Spiral Remastered | 43 | Common | €0.18 |
| Sidisi, Brood TyrantDouble Masters 2022 · 276 | Double Masters 2022 | 276 | Rare | €0.71 |