| Skilled AnimatorCommander Legends · 98 | Commander Legends | 98 | Uncommon | €0.04 |
| Skilled AnimatorJumpstart 2022 · 348 | Jumpstart 2022 | 348 | Uncommon | $0.06 |
| Skilled AnimatorCore Set 2019 · 73 | Core Set 2019 | 73 | Uncommon | €0.05 |
| Skin Invasion // Skin ShedderShadows over Innistrad · 182 | Shadows over Innistrad | 182 | Uncommon | $0.08 |
| SkinrenderDouble Masters 2022 · 91 | Double Masters 2022 | 91 | Uncommon | €0.16 |
| SkinrenderLorwyn Eclipsed Commander · 86 | Lorwyn Eclipsed Commander | 86 | Uncommon | €0.13 |
| SkinrenderScars of Mirrodin · 78 | Scars of Mirrodin | 78 | Uncommon | €0.12 |
| SkinwingMirrodin Besieged · 133 | Mirrodin Besieged | 133 | Uncommon | $0.11 |
| Skirge FamiliarModern Horizons 2 · 276 | Modern Horizons 2 | 276 | Uncommon | €0.29 |
| Skirge FamiliarThe List Tokens · USG-157 | The List Tokens | USG-157 | Uncommon | $0.39 |
| Skirge FamiliarUrza's Saga · 157 | Urza's Saga | 157 | Uncommon | €1.12 |
| Skirk Drill SergeantDuel Decks: Elves vs. Goblins · 49 | Duel Decks: Elves vs. Goblins | 49 | Uncommon | €0.13 |
| Skirk Drill SergeantDuel Decks Anthology: Elves vs. Goblins · 49 | Duel Decks Anthology: Elves vs. Goblins | 49 | Uncommon | $0.28 |
| Skirk Drill SergeantLegions · 112 | Legions | 112 | Uncommon | €0.10 |
| Skirk Ridge ExhumerFuture Sight · 77 | Future Sight | 77 | Uncommon | €0.19 |
| Skirk VolcanistScourge · 104 | Scourge | 104 | Uncommon | $0.07 |
| Skirmish RhinoTarkir: Dragonstorm · 224 | Tarkir: Dragonstorm | 224 | Uncommon | €0.09 |
| Skirsdag CultistDuel Decks: Sorin vs. Tibalt · 53 | Duel Decks: Sorin vs. Tibalt | 53 | Uncommon | $0.07 |
| Skirsdag CultistInnistrad · 163 | Innistrad | 163 | Uncommon | $0.05 |
| Skirsdag CultistModern Masters 2017 · 112 | Modern Masters 2017 | 112 | Uncommon | $0.05 |
| Skirsdag CultistShadows of the Past · 44 | Shadows of the Past | 44 | Uncommon | — |
| Skirsdag FlayerDark Ascension · 74 | Dark Ascension | 74 | Uncommon | €0.09 |
| Skittering InvasionModern Horizons 3 Commander · 159 | Modern Horizons 3 Commander | 159 | Uncommon | €0.32 |
| Skittering InvasionRise of the Eldrazi · 10 | Rise of the Eldrazi | 10 | Uncommon | €0.29 |
| Skittering MonstrosityTime Spiral · 129 | Time Spiral | 129 | Uncommon | €0.05 |
| Skittering MonstrosityTime Spiral Remastered · 137 | Time Spiral Remastered | 137 | Uncommon | €0.03 |
| Skittering PrecursorModern Horizons 3 · 137 | Modern Horizons 3 | 137 | Uncommon | €0.09 |
| SkitterskinBattle for Zendikar · 97 | Battle for Zendikar | 97 | Uncommon | $0.04 |
| Skittish KavuInvasion · 168 | Invasion | 168 | Uncommon | €0.11 |
| Skittish ValeskOnslaught · 231 | Onslaught | 231 | Uncommon | €0.06 |
| SkizzikDominaria · 145 | Dominaria | 145 | Uncommon | €0.09 |
| Skizzik SurgerFuture Sight · 120 | Future Sight | 120 | Uncommon | €0.11 |
| Skophos Maze-WardenTheros Beyond Death · 153 | Theros Beyond Death | 153 | Uncommon | €0.04 |
| Skorpekh DestroyerWarhammer 40,000 Commander · 57 | Warhammer 40,000 Commander | 57 | Uncommon | €0.24 |
| Skorpekh DestroyerWarhammer 40,000 Commander · 57★ | Warhammer 40,000 Commander | 57★ | Uncommon | $1.56 |
| Skulking KillerInnistrad: Double Feature · 397 | Innistrad: Double Feature | 397 | Uncommon | €0.11 |
| Skulking KillerInnistrad: Crimson Vow · 130 | Innistrad: Crimson Vow | 130 | Uncommon | $0.03 |
| Skulking KillerInnistrad: Crimson Vow · 296 | Innistrad: Crimson Vow | 296 | Uncommon | $0.10 |
| SkullcageFifth Dawn · 151 | Fifth Dawn | 151 | Uncommon | €0.18 |
| SkullcageArchenemy · 115 | Archenemy | 115 | Uncommon | €0.26 |
| Skull CatapultClassic Sixth Edition · 310 | Classic Sixth Edition | 310 | Uncommon | €0.19 |
| Skull CatapultFifth Edition · 399 | Fifth Edition | 399 | Uncommon | €0.18 |
| Skull CatapultColdsnap Theme Decks · 336 | Coldsnap Theme Decks | 336 | Uncommon | €0.23 |
| Skull CatapultIce Age · 336 | Ice Age | 336 | Uncommon | €0.15 |
| Skull CatapultMasters Edition II · 219 | Masters Edition II | 219 | Uncommon | — |
| SkullclampWarhammer 40,000 Commander · 248 | Warhammer 40,000 Commander | 248 | Uncommon | €7.65 |
| SkullclampWarhammer 40,000 Commander · 248★ | Warhammer 40,000 Commander | 248★ | Uncommon | $19.42 |
| SkullclampBloomburrow Commander · 283 | Bloomburrow Commander | 283 | Uncommon | €4.00 |
| SkullclampThe Brothers' War Commander · 159 | The Brothers' War Commander | 159 | Uncommon | €4.00 |
| SkullclampCommander 2014 · 268 | Commander 2014 | 268 | Uncommon | €5.01 |