| Sky Diamond | 316★ |
| Sky Diamond (17 variants) | 316 |
| Skyshroud Falcon (17 variants) | 45 |
| Skyshroud Falcon | 45★ |
| Sleight of Hand | 98★ |
| Sleight of Hand (17 variants) | 98 |
| Soul Feast | 163★ |
| Soul Feast (17 variants) | 163 |
| Soul Net (17 variants) | 317 |
| Soul Net | 317★ |
| Southern Paladin | 46★ |
| Southern Paladin (17 variants) | 46 |
| Spellbook (17 variants) | 318 |
| Spellbook | 318★ |
| Spined Wurm | 270★ |
| Spined Wurm (17 variants) | 270 |
| Spineless Thug | 164★ |
| Spineless Thug (17 variants) | 164 |
| Spirit Link (17 variants) | 47 |
| Spirit Link | 47★ |
| Spitting Earth | 220★ |
| Spitting Earth (17 variants) | 220 |
| Squall | 271★ |
| Squall (17 variants) | 271 |
| Standing Troops | 48★ |
| Standing Troops (17 variants) | 48 |
| Starlight | 49★ |
| Starlight (17 variants) | 49 |
| Static Orb (17 variants) | 319 |
| Static Orb | 319★ |
| Staunch Defenders | 50★ |
| Staunch Defenders (17 variants) | 50 |
| Steal Artifact | 99★ |
| Steal Artifact (17 variants) | 99 |
| Stone Rain | 221★ |
| Stone Rain (17 variants) | 221 |
| Storm Cauldron (17 variants) | 320 |
| Storm Cauldron | 320★ |
| Storm Crow | 100★ |
| Storm Crow (17 variants) | 100 |
| Storm Shaman | 222★ |
| Storm Shaman (17 variants) | 222 |
| Strands of Night (17 variants) | 165 |
| Strands of Night | 165★ |
| Stream of Life (17 variants) | 272 |
| Stream of Life | 272★ |
| Stronghold Assassin (17 variants) | 166 |
| Stronghold Assassin | 166★ |
| Sudden Impact (17 variants) | 223 |
| Sudden Impact | 223★ |