| Seht's TigerSalvat 2005 · L13 | Salvat 2005 | L13 | Rare | €0.70 |
| Seifer AlmasyFinal Fantasy · 156 | Final Fantasy | 156 | Rare | €0.20 |
| Seifer AlmasyFinal Fantasy · 389 | Final Fantasy | 389 | Rare | $0.99 |
| Seifer AlmasyFinal Fantasy · 466 | Final Fantasy | 466 | Rare | €1.34 |
| Seifer AlmasyFinal Fantasy · 534 | Final Fantasy | 534 | Rare | €9.07 |
| Seifer AlmasyFinal Fantasy Promos · 156s | Final Fantasy Promos | 156s | Rare | €2.96 |
| Seifer, Balamb RivalFinal Fantasy Commander · 451 | Final Fantasy Commander | 451 | Rare | €2.10 |
| Seismic AssaultTenth Edition · 228 | Tenth Edition | 228 | Rare | €0.68 |
| Seismic AssaultSeventh Edition · 216 | Seventh Edition | 216 | Rare | €0.83 |
| Seismic AssaultSeventh Edition · 216★ | Seventh Edition | 216★ | Rare | $0.87 |
| Seismic AssaultEighth Edition · 219 | Eighth Edition | 219 | Rare | $0.62 |
| Seismic AssaultEighth Edition · 219★ | Eighth Edition | 219★ | Rare | $0.62 |
| Seismic AssaultExodus · 101 | Exodus | 101 | Rare | $1.79 |
| Seismic AssaultUltimate Masters · 146 | Ultimate Masters | 146 | Rare | $0.71 |
| Seismic MageMercadian Masques · 211 | Mercadian Masques | 211 | Rare | €0.46 |
| Seismic TutelageAvatar: The Last Airbender Eternal · 254 | Avatar: The Last Airbender Eternal | 254 | Rare | €0.85 |
| Seizan, Perverter of TruthChampions of Kamigawa · 143 | Champions of Kamigawa | 143 | Rare | €0.78 |
| Seizan, Perverter of TruthJumpstart 2022 · 463 | Jumpstart 2022 | 463 | Rare | €0.88 |
| Seizan, Perverter of TruthMultiverse Legends · 15 | Multiverse Legends | 15 | Rare | €0.53 |
| Seizan, Perverter of TruthMultiverse Legends · 80 | Multiverse Legends | 80 | Rare | €1.33 |
| Seizan, Perverter of TruthMultiverse Legends · 145 | Multiverse Legends | 145 | Rare | €7.57 |
| Seizan, Perverter of TruthMultiverse Legends · 145z | Multiverse Legends | 145z | Rare | €158.11 |
| Seize the DayMarvel Super Heroes Commander · 166 | Marvel Super Heroes Commander | 166 | Rare | $1.30 |
| Seize the DayOdyssey · 220 | Odyssey | 220 | Rare | €8.46 |
| Seize the DaySecret Lair Drop Tokens · 480 | Secret Lair Drop Tokens | 480 | Rare | €11.77 |
| Seize the DayThe List Tokens · UMA-147 | The List Tokens | UMA-147 | Rare | €8.79 |
| Seize the DaySecret Lair Drop Tokens · 1172 | Secret Lair Drop Tokens | 1172 | Rare | €23.33 |
| Seize the DayUltimate Masters · 147 | Ultimate Masters | 147 | Rare | $6.20 |
| Seize the DayMarvel Super Heroes Commander · 371 | Marvel Super Heroes Commander | 371 | Rare | $2.52 |
| Seize the SoulGuildpact · 61 | Guildpact | 61 | Rare | €0.21 |
| Seize the SpoilsSecret Lair Drop Tokens · 2556 | Secret Lair Drop Tokens | 2556 | Rare | €3.95 |
| Seize the SpotlightNew Capenna Commander · 52 | New Capenna Commander | 52 | Rare | €9.00 |
| Seize the SpotlightNew Capenna Commander · 152 | New Capenna Commander | 152 | Rare | €16.21 |
| Seize the SpotlightOutlaws of Thunder Junction Commander · 179 | Outlaws of Thunder Junction Commander | 179 | Rare | €12.94 |
| Seize the SpotlightNew Capenna Commander Promos · 52p | New Capenna Commander Promos | 52p | Rare | €16.49 |
| Seize the SpotlightSecret Lair Drop Tokens · 7044 | Secret Lair Drop Tokens | 7044 | Rare | €35.84 |
| Seize the SpotlightMagic Online Promos · 99847 | Magic Online Promos | 99847 | Rare | — |
| Sekki, Seasons' GuideSaviors of Kamigawa · 148 | Saviors of Kamigawa | 148 | Rare | €1.15 |
| Sek'Kuar, DeathkeeperCommander 2013 · 210 | Commander 2013 | 210 | Rare | €0.21 |
| Sek'Kuar, DeathkeeperColdsnap · 131 | Coldsnap | 131 | Rare | $0.33 |
| Sek'Kuar, DeathkeeperCommander Masters · 354 | Commander Masters | 354 | Rare | €0.16 |
| Sek'Kuar, DeathkeeperCommander Masters · 591 | Commander Masters | 591 | Rare | $0.64 |
| Sek'Kuar, DeathkeeperCommander 2013 Oversized · 210 | Commander 2013 Oversized | 210 | Rare | €0.29 |
| Selective AdaptationCommander 2020 · 65 | Commander 2020 | 65 | Rare | €0.12 |
| Selective MemoryWorldwake · 37 | Worldwake | 37 | Rare | €0.37 |
| Selective ObliterationModern Horizons 3 Commander · 35 | Modern Horizons 3 Commander | 35 | Rare | €0.49 |
| SeleniaVanguard Series · 206 | Vanguard Series | 206 | Rare | €9.04 |
| Selenia, Dark AngelTempest · 270 | Tempest | 270 | Rare | €3.42 |
| Selenia, Dark AngelTempest Remastered · 210 | Tempest Remastered | 210 | Rare | — |
| Selesnya EulogistCommander 2019 · 35 | Commander 2019 | 35 | Rare | €0.29 |