| Sick and TiredUrza's Legacy · 66 | Urza's Legacy | 66 | Common | €0.05 |
| SickenUrza's Saga · 156 | Urza's Saga | 156 | Common | €0.06 |
| Sickle DancerBattlebond · 50 | Battlebond | 50 | Common | €0.07 |
| Sickle RipperModern Masters 2015 · 96 | Modern Masters 2015 | 96 | Common | €0.04 |
| Sickle RipperShadowmoor · 77 | Shadowmoor | 77 | Common | €0.13 |
| SickleslicerDouble Masters · 287 | Double Masters | 287 | Common | €0.04 |
| SickleslicerModern Masters 2015 · 228 | Modern Masters 2015 | 228 | Common | $0.05 |
| Sidewinder NagaHour of Devastation · 134 | Hour of Devastation | 134 | Common | €0.07 |
| Sidewinder NagaAmonkhet Remastered · 218 | Amonkhet Remastered | 218 | Common | — |
| Sidewinder SliverTime Spiral · 41 | Time Spiral | 41 | Common | €0.21 |
| Sidewinder SliverTime Spiral Remastered · 43 | Time Spiral Remastered | 43 | Common | €0.20 |
| Sidisi's FaithfulDragons of Tarkir · 74 | Dragons of Tarkir | 74 | Common | €0.13 |
| Sidisi's PetKhans of Tarkir · 90 | Khans of Tarkir | 90 | Common | $0.05 |
| SiegecraftKhans of Tarkir · 23 | Khans of Tarkir | 23 | Common | €0.02 |
| SiegecraftThe List Tokens · KTK-23 | The List Tokens | KTK-23 | Common | €0.07 |
| Siege MastodonMagic 2010 · 30 | Magic 2010 | 30 | Common | €0.02 |
| Siege MastodonMagic 2011 · 29 | Magic 2011 | 29 | Common | €0.05 |
| Siege MastodonMagic 2012 · 34 | Magic 2012 | 34 | Common | $0.03 |
| Siege MastodonMagic 2014 · 34 | Magic 2014 | 34 | Common | $0.02 |
| Siege MastodonCore Set 2020 · 312 | Core Set 2020 | 312 | Common | $0.20 |
| Siege SmashModern Horizons 3 · 136 | Modern Horizons 3 | 136 | Common | €0.12 |
| Siege WurmGuilds of Ravnica · 144 | Guilds of Ravnica | 144 | Common | €0.03 |
| Siege WurmMagic 2015 · 200 | Magic 2015 | 200 | Common | €0.02 |
| Siege WurmRavnica: City of Guilds · 183 | Ravnica: City of Guilds | 183 | Common | €0.04 |
| Siege WurmRavnica Remastered · 155 | Ravnica Remastered | 155 | Common | €0.04 |
| Siege WurmThe List Tokens · GRN-144 | The List Tokens | GRN-144 | Common | €0.14 |
| Siege ZombieInnistrad: Double Feature · 121 | Innistrad: Double Feature | 121 | Common | €0.10 |
| Siege ZombieInnistrad Remastered · 131 | Innistrad Remastered | 131 | Common | €0.08 |
| Siege ZombieInnistrad: Midnight Hunt · 121 | Innistrad: Midnight Hunt | 121 | Common | €0.09 |
| Siege ZombieThe List Tokens · DBL-121 | The List Tokens | DBL-121 | Common | $0.31 |
| Sif's SpearmasterMarvel Super Heroes Commander · 765 | Marvel Super Heroes Commander | 765 | Common | €0.18 |
| SiftDouble Masters · 69 | Double Masters | 69 | Common | €0.02 |
| SiftTenth Edition · 108 | Tenth Edition | 108 | Common | €0.04 |
| SiftMasters 25 · 73 | Masters 25 | 73 | Common | €0.03 |
| SiftNinth Edition · 98 | Ninth Edition | 98 | Common | €0.02 |
| SiftNinth Edition · 98★ | Ninth Edition | 98★ | Common | $0.16 |
| SiftSalvat 2011 · 52 | Salvat 2011 | 52 | Common | €0.02 |
| SiftStronghold · 42 | Stronghold | 42 | Common | €0.09 |
| SiftTempest Remastered · 67 | Tempest Remastered | 67 | Common | — |
| Sift Through SandsChampions of Kamigawa · 84 | Champions of Kamigawa | 84 | Common | €0.07 |
| Sift Through SandsDuel Decks: Mind vs. Might · 9 | Duel Decks: Mind vs. Might | 9 | Common | €0.14 |
| Sigarda's ImprisonmentInnistrad: Double Feature · 302 | Innistrad: Double Feature | 302 | Common | €0.16 |
| Sigarda's ImprisonmentInnistrad: Crimson Vow · 35 | Innistrad: Crimson Vow | 35 | Common | €0.07 |
| Sigardian PriestEldritch Moon · 42 | Eldritch Moon | 42 | Common | €0.05 |
| Sigardian PriestShadows over Innistrad Remastered · 44 | Shadows over Innistrad Remastered | 44 | Common | — |
| Sighted-Caste SorcererShards of Alara · 26 | Shards of Alara | 26 | Common | €0.05 |
| Sightless GhoulDark Ascension · 73 | Dark Ascension | 73 | Common | €0.13 |
| Sigil BlessingShards of Alara · 195 | Shards of Alara | 195 | Common | $0.09 |
| Sigil BlessingDuel Decks: Knights vs. Dragons · 30 | Duel Decks: Knights vs. Dragons | 30 | Common | €0.06 |
| Sigiled BehemothAlara Reborn · 79 | Alara Reborn | 79 | Common | €0.06 |