| Synthesizer LabshipEdge of Eternities · 81 | Edge of Eternities | 81 | Rare | €0.18 |
| Synthesizer LabshipEdge of Eternities · 329 | Edge of Eternities | 329 | Rare | $0.38 |
| Synthesizer LabshipEdge of Eternities Promos · 81p | Edge of Eternities Promos | 81p | Rare | €0.13 |
| Synthesizer LabshipEdge of Eternities Promos · 81s | Edge of Eternities Promos | 81s | Rare | $1.10 |
| Synthetic DestinyCommander 2015 · 15 | Commander 2015 | 15 | Rare | €0.30 |
| Synthetic DestinyKaldheim Commander · 44 | Kaldheim Commander | 44 | Rare | $0.24 |
| Synthetic DestinyLegendary Cube Prize Pack · 33 | Legendary Cube Prize Pack | 33 | Rare | — |
| Synthetic DestinyReality Fracture Commander · 45 | Reality Fracture Commander | 45 | Rare | €0.15 |
| Synth InfiltratorFallout · 40 | Fallout | 40 | Rare | €0.21 |
| Synth InfiltratorFallout · 330 | Fallout | 330 | Rare | €0.34 |
| Synth InfiltratorFallout · 568 | Fallout | 568 | Rare | €2.85 |
| Synth InfiltratorFallout · 858 | Fallout | 858 | Rare | €3.61 |
| Syphon MindDCI Promos · 40 | DCI Promos | 40 | Rare | €0.91 |
| Syphon SliverCommander Masters · 870 | Commander Masters | 870 | Rare | €6.37 |
| Syphon SliverMagic 2014 · 117 | Magic 2014 | 117 | Rare | €5.10 |
| Syphon SliverSecret Lair Drop Tokens · 634 | Secret Lair Drop Tokens | 634 | Rare | €8.92 |
| Syr Cadian, Knight OwlThe List (Unfinity Foil Edition) · 9 | The List (Unfinity Foil Edition) | 9 | Rare | $0.36 |
| Syr Cadian, Knight OwlUnsanctioned · 15 | Unsanctioned | 15 | Rare | $0.24 |
| Syr Ginger, the Meal EnderWilds of Eldraine Promos · 252p | Wilds of Eldraine Promos | 252p | Rare | €0.65 |
| Syr Ginger, the Meal EnderWilds of Eldraine Promos · 252s | Wilds of Eldraine Promos | 252s | Rare | €2.01 |
| Syr Ginger, the Meal EnderWilds of Eldraine · 252 | Wilds of Eldraine | 252 | Rare | €0.99 |
| Syr Ginger, the Meal EnderWilds of Eldraine · 369 | Wilds of Eldraine | 369 | Rare | €2.10 |
| Syrix, Carrier of the FlameNew Capenna Commander · 80 | New Capenna Commander | 80 | Rare | €0.02 |
| Syrix, Carrier of the FlameNew Capenna Commander · 180 | New Capenna Commander | 180 | Rare | $0.48 |
| Syrix, Carrier of the FlameNew Capenna Commander Promos · 80p | New Capenna Commander Promos | 80p | Rare | €2.53 |
| Syrix, Carrier of the FlameMagic Online Promos · 99899 | Magic Online Promos | 99899 | Rare | — |
| Syr Joshua and Syr SaxonAlchemy: Wilds of Eldraine · 27 | Alchemy: Wilds of Eldraine | 27 | Rare | — |
| Syr Konrad, the GrimWizards Play Network 2023 · 5 | Wizards Play Network 2023 | 5 | Rare | €0.92 |
| Syr Konrad, the GrimSecret Lair Drop Tokens · 1297 | Secret Lair Drop Tokens | 1297 | Rare | €34.70 |
| Syr Vondam, Sunstar ExemplarEdge of Eternities · 231 | Edge of Eternities | 231 | Rare | $0.39 |
| Syr Vondam, Sunstar ExemplarEdge of Eternities · 302 | Edge of Eternities | 302 | Rare | $0.78 |
| Syr Vondam, Sunstar ExemplarEdge of Eternities Promos · 231p | Edge of Eternities Promos | 231p | Rare | $0.42 |
| Syr Vondam, Sunstar ExemplarEdge of Eternities Promos · 231s | Edge of Eternities Promos | 231s | Rare | €1.45 |
| Sythis, Harvest's HandCommander Masters · 938 | Commander Masters | 938 | Rare | €3.29 |
| Sythis, Harvest's HandModern Horizons 2 · 214 | Modern Horizons 2 | 214 | Rare | $2.58 |
| Sythis, Harvest's HandModern Horizons 2 · 377 | Modern Horizons 2 | 377 | Rare | $1.77 |
| Sythis, Harvest's HandModern Horizons 2 Promos · 214s | Modern Horizons 2 Promos | 214s | Rare | €6.32 |
| Sythis, Harvest's HandSecret Lair Drop Tokens · 1963 | Secret Lair Drop Tokens | 1963 | Rare | €12.47 |
| Sythis, Harvest's HandThe List Tokens · MH2-214 | The List Tokens | MH2-214 | Rare | $5.39 |
| Sythis, Harvest's HandJumpstart: Historic Horizons · 722 | Jumpstart: Historic Horizons | 722 | Rare | — |
| Syx, Robot OverlordUnknown Event · RZ02f | Unknown Event | RZ02f | Rare | — |
| Szadek, Lord of SecretsCommander Anthology Volume II · 168 | Commander Anthology Volume II | 168 | Rare | $0.21 |
| Szadek, Lord of SecretsCommander 2011 · 228 | Commander 2011 | 228 | Rare | €0.19 |
| Szadek, Lord of SecretsGRN Guild Kit · 20 | GRN Guild Kit | 20 | Rare | €0.13 |
| Szadek, Lord of SecretsRavnica: City of Guilds · 234 | Ravnica: City of Guilds | 234 | Rare | €0.24 |
| Szat's WillCommander Legends · 152 | Commander Legends | 152 | Rare | €0.59 |
| Szat's WillCommander Legends · 655 | Commander Legends | 655 | Rare | $2.31 |
| Szat's WillMagic Online Promos · 86056 | Magic Online Promos | 86056 | Rare | — |
| T-45 Power ArmorFallout · 145 | Fallout | 145 | Rare | $0.29 |
| T-45 Power ArmorFallout · 437 | Fallout | 437 | Rare | €0.44 |