| Serum Visions | 29 |
| Serum Visions | 31 |
| Serum Visions (2 variants) | 2323 |
| Serra the Benevolent (2 variants) | 1252 |
| Serra Ascendant (2 variants) | 1125 |
| Serra Ascendant | 7145 |
| Serra Ascendant (2 variants) | 2291 |
| Serra Angel (2 variants) | 1161 |
| Serpent of Yawning Depths | 1489 |
| Serpent of Yawning Depths | 1489★ |
| Serenity (2 variants) | 1893 |
| Seraph Sanctuary (2 variants) | 1292 |
| Seraph Sanctuary | 797 |
| Seraph Sanctuary (2 variants) | 733 |
| Sen Triplets | 1198 |
| Selvala, Explorer Returned (2 variants) | 1914 |
| Selfless Savior (2 variants) | 1286 |
| Selfless Savior (2 variants) | 732 |
| Selesnya Signet (2 variants) | 290 |
| Seize the Spotlight | 7044 |
| Seize the Spoils (2 variants) | 2556 |
| Seize the Day (2 variants) | 480 |
| Seize the Day (2 variants) | 1172 |
| Sefris of the Hidden Ways (2 variants) | 2508 |
| Seething Song (2 variants) | 7051 |
| Seedborn Muse | 907 |
| Sedge Sliver | 642 |
| Secure the Wastes (2 variants) | 1748 |
| Secrets of the Dead (2 variants) | 7099 |
| Secret Rendezvous (2 variants) | 1892 |
| Secret Rendezvous (2 variants) | 2648 |
| Second Harvest (2 variants) | 2380 |
| Second Harvest (2 variants) | 1611 |
| Secluded Glen (2 variants) | 1323 |
| Seat of the Synod (2 variants) | 301 |
| Seasoned Dungeoneer | 7144 |
| Seasoned Dungeoneer (2 variants) | 2505 |
| Search for Azcanta // Azcanta, the Sunken Ruin (2 variants) | 1502 |
| Scuttling Sliver | 623 |
| Scute Swarm (2 variants) | 7048 |
| Sculpting Steel | 864 |
| Scrying Sheets (4 variants) | 1606 |
| Screeching Sliver | 622 |
| Scrawling Crawler | 2399 |
| Scourge of Valkas | 1490★ |
| Scourge of Valkas | 1490 |
| Scourge of the Throne (2 variants) | 1033 |
| Scion of the Ur-Dragon | 1531 |
| Scion of Draco (2 variants) | 2031 |
| Scion of Draco | 7026 |