| Sawblade Slinger (2 variants) | 484 |
| Scattered Thoughts (2 variants) | 341 |
| Screaming Swarm (2 variants) | 342 |
| Search Party Captain (2 variants) | 32 |
| Secrets of the Key (2 variants) | 73 |
| Seize the Storm (2 variants) | 158 |
| Selhoff Entomber (2 variants) | 343 |
| Serpentine Ambush (2 variants) | 344 |
| Shadowbeast Sighting (2 variants) | 198 |
| Shady Traveler // Stalking Predator (2 variants) | 120 |
| Shattered Sanctum (2 variants) | 531 |
| Sheltering Boughs (2 variants) | 485 |
| Shipwreck Marsh (2 variants) | 267 |
| Shipwreck Sifters (2 variants) | 74 |
| Siege Zombie (2 variants) | 121 |
| Sigarda, Champion of Light (2 variants) | 240 |
| Sigarda's Imprisonment (2 variants) | 302 |
| Sigarda's Splendor (2 variants) | 33 |
| Sigarda's Summons (2 variants) | 303 |
| Sigardian Paladin (2 variants) | 514 |
| Sigardian Savior (2 variants) | 34 |
| Silver Bolt (2 variants) | 258 |
| Siphon Insight (2 variants) | 241 |
| Skaab Wrangler (2 variants) | 75 |
| Skulking Killer (2 variants) | 397 |
| Skull Skaab (2 variants) | 515 |
| Skywarp Skaab (2 variants) | 345 |
| Slaughter Specialist (2 variants) | 122 |
| Slogurk, the Overslime (2 variants) | 242 |
| Sludge Monster (2 variants) | 76 |
| Smoldering Egg // Ashmouth Dragon (2 variants) | 159 |
| Snarling Wolf (2 variants) | 199 |
| Snarling Wolf (2 variants) | 486 |
| Sorin the Mirthless (2 variants) | 398 |
| Soul-Guide Gryff (2 variants) | 35 |
| Soulcipher Board // Cipherbound Spirit (2 variants) | 346 |
| Spectral Adversary (2 variants) | 77 |
| Spellrune Painter // Spellrune Howler (2 variants) | 160 |
| Spiked Ripsaw (2 variants) | 487 |
| Splendid Reclamation (2 variants) | 488 |
| Spore Crawler (2 variants) | 489 |
| Sporeback Wolf (2 variants) | 490 |
| Startle (2 variants) | 78 |
| Steelclad Spirit (2 variants) | 347 |
| Stensia Uprising (2 variants) | 445 |
| Stitched Assistant (2 variants) | 348 |
| Stolen Vitality (2 variants) | 161 |
| Storm Skreelix (2 variants) | 243 |
| Storm the Festival (2 variants) | 200 |
| Stormcarved Coast (2 variants) | 532 |