| Sliver OverlordScourge · 139 | Scourge | 139 | Rare | €23.20 |
| Sliver QueenCommander's Arsenal Oversized · 9 | Commander's Arsenal Oversized | 9 | Rare | €52.14 |
| Sliver QueenStronghold · 129 | Stronghold | 129 | Rare | €108.81 |
| Sliver QueenMagic Online Promos · 26980 | Magic Online Promos | 26980 | Rare | — |
| Sliver Queen AvatarMagic Online Avatars · 92 | Magic Online Avatars | 92 | Rare | — |
| Sliver Queen, Brood MotherVanguard Series · 307 | Vanguard Series | 307 | Rare | €39.43 |
| Sliv-Mizzet, HivemindMystery Booster Playtest Cards 2019 · 99 | Mystery Booster Playtest Cards 2019 | 99 | Rare | €0.02 |
| Sliv-Mizzet, HivemindMystery Booster Playtest Cards 2021 · 99 | Mystery Booster Playtest Cards 2021 | 99 | Rare | €1.02 |
| Slobad, Actually Just FineUnknown Event · RZ03a | Unknown Event | RZ03a | Rare | $41.26 |
| Slobad, Goblin TinkererThe Brothers' War Commander · 118 | The Brothers' War Commander | 118 | Rare | €0.33 |
| Slobad, Goblin TinkererCommander 2016 · 133 | Commander 2016 | 133 | Rare | €0.27 |
| Slobad, Goblin TinkererDarksteel · 69 | Darksteel | 69 | Rare | €0.38 |
| Slobad, Goblin TinkererThe List Tokens · C16-133 | The List Tokens | C16-133 | Rare | $0.51 |
| Slobad, Iron GoblinPhyrexia: All Will Be One · 149 | Phyrexia: All Will Be One | 149 | Rare | €0.13 |
| Slobad, Iron GoblinPhyrexia: All Will Be One · 311 | Phyrexia: All Will Be One | 311 | Rare | €0.22 |
| Slobad, Iron GoblinPhyrexia: All Will Be One · 448 | Phyrexia: All Will Be One | 448 | Rare | €1.26 |
| Slobad, Iron GoblinPhyrexia: All Will Be One Promos · 149p | Phyrexia: All Will Be One Promos | 149p | Rare | €0.14 |
| Slobad, Iron GoblinPhyrexia: All Will Be One Promos · 149s | Phyrexia: All Will Be One Promos | 149s | Rare | $0.53 |
| Slogurk, the OverslimeInnistrad: Double Feature · 242 | Innistrad: Double Feature | 242 | Rare | $0.42 |
| Slogurk, the OverslimeInnistrad: Midnight Hunt · 242 | Innistrad: Midnight Hunt | 242 | Rare | €0.28 |
| Slogurk, the OverslimeInnistrad: Midnight Hunt · 324 | Innistrad: Midnight Hunt | 324 | Rare | €0.33 |
| Slogurk, the OverslimeInnistrad: Midnight Hunt Promos · 242p | Innistrad: Midnight Hunt Promos | 242p | Rare | €0.28 |
| Slogurk, the OverslimeInnistrad: Midnight Hunt Promos · 242s | Innistrad: Midnight Hunt Promos | 242s | Rare | €0.87 |
| Sloppity BilepiperWarhammer 40,000 Commander · 59 | Warhammer 40,000 Commander | 59 | Rare | €0.27 |
| Sloppity BilepiperWarhammer 40,000 Commander · 59★ | Warhammer 40,000 Commander | 59★ | Rare | $1.92 |
| Sludge MonsterCommander Legends: Battle for Baldur's Gate · 735 | Commander Legends: Battle for Baldur's Gate | 735 | Rare | €0.29 |
| Sludge MonsterInnistrad: Double Feature · 76 | Innistrad: Double Feature | 76 | Rare | €0.62 |
| Sludge MonsterInnistrad: Midnight Hunt · 76 | Innistrad: Midnight Hunt | 76 | Rare | €0.38 |
| Sludge MonsterInnistrad: Midnight Hunt · 340 | Innistrad: Midnight Hunt | 340 | Rare | €0.79 |
| Sludge MonsterInnistrad: Midnight Hunt Promos · 76p | Innistrad: Midnight Hunt Promos | 76p | Rare | €0.34 |
| Sludge MonsterInnistrad: Midnight Hunt Promos · 76s | Innistrad: Midnight Hunt Promos | 76s | Rare | €1.07 |
| Sludge MonsterMagic Online Promos · 93932 | Magic Online Promos | 93932 | Rare | — |
| Sludge TitanRavnica: Clue Edition · 43 | Ravnica: Clue Edition | 43 | Rare | €1.40 |
| Slumbering DragonMagic 2013 · 148 | Magic 2013 | 148 | Rare | $1.81 |
| Slumbering ToraBetrayers of Kamigawa · 161 | Betrayers of Kamigawa | 161 | Rare | €0.26 |
| Slumbering TrudgeSecrets of Strixhaven Promos · 160p | Secrets of Strixhaven Promos | 160p | Rare | €0.25 |
| Slumbering TrudgeSecrets of Strixhaven · 160 | Secrets of Strixhaven | 160 | Rare | €0.35 |
| Slumbering TrudgeSecrets of Strixhaven · 341 | Secrets of Strixhaven | 341 | Rare | €0.62 |
| Slumbering WalkerLorwyn Eclipsed · 35 | Lorwyn Eclipsed | 35 | Rare | $0.13 |
| Slumbering WalkerLorwyn Eclipsed · 302 | Lorwyn Eclipsed | 302 | Rare | $0.26 |
| Slumbering WalkerLorwyn Eclipsed Promos · 35p | Lorwyn Eclipsed Promos | 35p | Rare | €0.02 |
| Slumbering WaterwaysMystery Booster 2 Tokens · 618 | Mystery Booster 2 Tokens | 618 | Rare | €0.24 |
| Sly InstigatorCommander 2021 · 32 | Commander 2021 | 32 | Rare | €0.26 |
| Sly InstigatorCommander 2021 · 359 | Commander 2021 | 359 | Rare | €0.40 |
| Sly InstigatorCommander Legends: Battle for Baldur's Gate · 736 | Commander Legends: Battle for Baldur's Gate | 736 | Rare | €0.26 |
| Sly InstigatorMagic Online Promos · 90028 | Magic Online Promos | 90028 | Rare | — |
| SmallpoxSecrets of Strixhaven Mystical Archive · 33 | Secrets of Strixhaven Mystical Archive | 33 | Rare | $0.90 |
| SmallpoxSecrets of Strixhaven Mystical Archive · 98 | Secrets of Strixhaven Mystical Archive | 98 | Rare | $1.48 |
| SmallpoxSecrets of Strixhaven Mystical Archive · 163 | Secrets of Strixhaven Mystical Archive | 163 | Rare | €9.71 |
| Smash to SmithereensFriday Night Magic 2016 · 3 | Friday Night Magic 2016 | 3 | Rare | €0.63 |