| Rushwood Dryad (9 variants) | 294 |
| Sage Owl (9 variants) | 104 |
| Sage Owl | 104★ |
| Samite Healer (18 variants) | 38 |
| Scalpelexis (9 variants) | 105 |
| Scalpelexis | 105★ |
| Scathe Zombies (18 variants) | 175 |
| Scion of the Wild (18 variants) | 295 |
| Scoria Wurm (18 variants) | 227 |
| Sculpting Steel (18 variants) | 342 |
| Sea Monster (18 variants) | 106 |
| Seedborn Muse (18 variants) | 296 |
| Seismic Assault (18 variants) | 228 |
| Sengir Vampire | 176★ |
| Sengir Vampire (9 variants) | 176 |
| Serra Angel | 39★ |
| Serra Angel (9 variants) | 39 |
| Serra's Embrace | 40★ |
| Serra's Embrace (9 variants) | 40 |
| Severed Legion (9 variants) | 177 |
| Severed Legion | 177★ |
| Shatterstorm (18 variants) | 229 |
| Shimmering Wings | 107★ |
| Shimmering Wings (9 variants) | 107 |
| Shivan Dragon (9 variants) | 230 |
| Shivan Dragon | 230★ |
| Shivan Hellkite | 231★ |
| Shivan Hellkite (9 variants) | 231 |
| Shivan Reef (18 variants) | 357 |
| Shock (18 variants) | 232 |
| Shunt (18 variants) | 233 |
| Siege-Gang Commander (18 variants) | 234 |
| Sift (18 variants) | 108 |
| Sky Weaver (9 variants) | 109 |
| Sky Weaver | 109★ |
| Skyhunter Patrol (9 variants) | 41 |
| Skyhunter Patrol | 41★ |
| Skyhunter Prowler | 42★ |
| Skyhunter Prowler (9 variants) | 42 |
| Skyhunter Skirmisher (9 variants) | 43 |
| Skyhunter Skirmisher | 43★ |
| Skyshroud Ranger (18 variants) | 297 |
| Sleeper Agent (18 variants) | 178 |
| Smash (18 variants) | 235 |
| Snapping Drake | 110★ |
| Snapping Drake (9 variants) | 110 |
| Soul Feast (18 variants) | 179 |
| Soul Warden (18 variants) | 44 |
| Soulblast (18 variants) | 236 |
| Spark Elemental (9 variants) | 237 |