| Skull Catapult (6 variants) | 336 |
| Sleight of Mind (6 variants) | 99 |
| Snow Devil (6 variants) | 100 |
| Snow Fortress (6 variants) | 337 |
| Snow Hound (6 variants) | 53 |
| Snow-Covered Forest (6 variants) | 383 |
| Snow-Covered Island (6 variants) | 371 |
| Snow-Covered Mountain (6 variants) | 379 |
| Snow-Covered Plains (6 variants) | 367 |
| Snow-Covered Swamp (6 variants) | 372 |
| Snowblind (6 variants) | 264 |
| Snowfall (6 variants) | 101 |
| Soldevi Golem (6 variants) | 338 |
| Soldevi Machinist (6 variants) | 102 |
| Soldevi Simulacrum (6 variants) | 339 |
| Songs of the Damned (6 variants) | 160 |
| Soul Barrier (6 variants) | 103 |
| Soul Burn (6 variants) | 161 |
| Soul Kiss (6 variants) | 162 |
| Spectral Shield (6 variants) | 302 |
| Spoils of Evil (6 variants) | 163 |
| Spoils of War (6 variants) | 164 |
| Staff of the Ages (6 variants) | 340 |
| Stampede (6 variants) | 265 |
| Stench of Evil (6 variants) | 165 |
| Stone Rain (6 variants) | 217 |
| Stone Spirit (6 variants) | 218 |
| Stonehands (6 variants) | 219 |
| Storm Spirit (6 variants) | 303 |
| Stormbind (6 variants) | 304 |
| Stromgald Cabal (6 variants) | 166 |
| Stunted Growth (6 variants) | 266 |
| Sulfurous Springs (6 variants) | 360 |
| Sunstone (6 variants) | 341 |
| Swamp (6 variants) | 375 |
| Swamp (6 variants) | 373 |
| Swamp (6 variants) | 374 |
| Swords to Plowshares (6 variants) | 54 |
| Tarpan (6 variants) | 267 |
| Thermokarst (6 variants) | 268 |
| Thoughtleech (6 variants) | 269 |
| Thunder Wall (6 variants) | 104 |
| Timberline Ridge (6 variants) | 361 |
| Time Bomb (6 variants) | 342 |
| Tinder Wall (6 variants) | 270 |
| Tor Giant (6 variants) | 220 |
| Total War (6 variants) | 221 |
| Touch of Death (6 variants) | 167 |
| Touch of Vitae (6 variants) | 271 |
| Trailblazer (6 variants) | 272 |