| Ruxa, Patient Professor (10 variants) | 66 |
| Ruxa, Patient Professor (11 variants) | 393 |
| Sanctum Gargoyle (10 variants) | 102 |
| Sangromancer (19 variants) | 152 |
| Sanguine Bond (19 variants) | 153 |
| Sapling of Colfenor (19 variants) | 228 |
| Sapseep Forest (19 variants) | 313 |
| Scavenger Grounds (10 variants) | 314 |
| Scholarship Sponsor (10 variants) | 22 |
| Scholarship Sponsor (11 variants) | 349 |
| Scrap Trawler (10 variants) | 260 |
| Sculpting Steel (10 variants) | 261 |
| Secluded Steppe (19 variants) | 315 |
| Seething Song (10 variants) | 179 |
| Selfless Squire (10 variants) | 103 |
| Sequence Engine (11 variants) | 394 |
| Sequence Engine (10 variants) | 67 |
| Serum Visions (10 variants) | 129 |
| Shamanic Revelation (10 variants) | 206 |
| Shivan Reef (10 variants) | 316 |
| Silversmote Ghoul (19 variants) | 154 |
| Simic Growth Chamber (10 variants) | 317 |
| Simic Signet (10 variants) | 262 |
| Slayers' Stronghold (10 variants) | 318 |
| Sly Instigator (10 variants) | 32 |
| Sly Instigator (11 variants) | 359 |
| Sol Ring (10 variants) | 263 |
| Solemn Simulacrum (10 variants) | 264 |
| Soul Snare (10 variants) | 104 |
| Spawning Kraken (10 variants) | 33 |
| Spawning Kraken (11 variants) | 360 |
| Spectral Searchlight (10 variants) | 265 |
| Spitting Image (10 variants) | 229 |
| Sproutback Trudge (11 variants) | 395 |
| Sproutback Trudge (10 variants) | 68 |
| Stalking Leonin (10 variants) | 105 |
| Steel Hellkite (10 variants) | 266 |
| Steel Overseer (10 variants) | 267 |
| Stinging Study (11 variants) | 371 |
| Stinging Study (10 variants) | 44 |
| Study Hall (10 variants) | 80 |
| Suffer the Past (19 variants) | 155 |
| Sun Droplet (19 variants) | 268 |
| Sun Titan (10 variants) | 106 |
| Sunbird's Invocation (10 variants) | 180 |
| Sunhome, Fortress of the Legion (10 variants) | 319 |
| Sunscorch Regent (10 variants) | 107 |
| Surge to Victory (10 variants) | 58 |
| Surge to Victory (11 variants) | 385 |
| Swarm Intelligence (10 variants) | 130 |