| Name | Map Tool Token Link | Family | Type | Size | CR |
|---|---|---|---|---|---|
| Sahuagin | |
Sahuagin | Monstrous Humanoid | Medium | 2 |
| Average Salamander | |
Salamander | Outsider | Medium | 6 |
| Flamebrother Salamander | |
Salamander | Outsider | Small | 3 |
| Noble Salamander | |
Salamander | Outsider | Large | 10 |
| Adult Sapphire Dragon | RPTok | Dragon, Gem | Dragon | Large | 14 |
| Ancient Sapphire Dragon | RPTok | Dragon, Gem | Dragon | Huge | 22 |
| Great wyrm Sapphire Dragon | RPTok | Dragon, Gem | Dragon | Gargantuan | 25 |
| Juvenile Sapphire Dragon | RPTok | Dragon, Gem | Dragon | Medium | 9 |
| Mature adult Sapphire Dragon | RPTok | Dragon, Gem | Dragon | Huge | 16 |
| Old Sapphire Dragon | RPTok | Dragon, Gem | Dragon | Huge | 19 |
| Very old Sapphire Dragon | RPTok | Dragon, Gem | Dragon | Huge | 20 |
| Very young Sapphire Dragon | RPTok | Dragon, Gem | Dragon | Small | 5 |
| Wyrm Sapphire Dragon | RPTok | Dragon, Gem | Dragon | Gargantuan | 23 |
| Wyrmling Sapphire Dragon | RPTok | Dragon, Gem | Dragon | Tiny | 3 |
| Young Sapphire Dragon | RPTok | Dragon, Gem | Dragon | Medium | 7 |
| Young adult Sapphire Dragon | RPTok | Dragon, Gem | Dragon | Large | 11 |
| Satyr | |
Satyr | Fey | Medium | 2 (without pipes) or 4 (with pipes) |
| Scorpionfolk | RPTok | Scorpionfolk | Monstrous Humanoid | Large | 7 |
| Sea Cat | |
Sea Cat | Magical Beast | Large | 4 |
| Sea Hag | |
Hag | Monstrous Humanoid | Medium | 4 |
| Seismosaurus | RPTok | Dinosaur | Animal | Colossal | 12 |
| Shadow | |
Shadow | Undead | Medium | 3 |
| Shadow Mastiff | |
Shadow Mastiff | Outsider | Medium | 5 |
| Shadow of the Void | RPTok | Shadow of the Void | Undead | Large | 26 |
| Shadow Spider | RPTok | Shadow Spider | Magical Beast | Huge | 12 |
| Greater Shadow | |
Shadow | Undead | Medium | 8 |
| Shambling Mound | |
Shambling Mound | Plant | Large | 6 |
| Shape of Fire | RPTok | Shape of Fire | Undead | Large | 26 |
| Dire Shark | |
Dire Animal | Animal | Huge | 9 |
| Huge Shark | RPTok | Shark | Animal | Huge | 4 |
| Large Shark | RPTok | Shark | Animal | Large | 2 |
| Legendary Shark | RPTok | Legendary Animals | Animal | Huge | 10 |
| Medium Shark | RPTok | Shark | Animal | Medium | 1 |
| Shield Guardian | RPTok | Shield Guardian | Construct | Large | 8 |
| Shocker Lizard | |
Shocker Lizard | Magical Beast | Small | 2 |
| Shrapnyl | |
Raggamoffyn | Construct | Large | 7 |
| Shrieker | RPTok | Fungus | Plant | Medium | 1 |
| Adult Silver Dragon | |
Dragon, True | Dragon | Huge | 15 |
| Ancient Silver Dragon | |
Dragon, True | Dragon | Gargantuan | 23 |
| Great wyrm Silver Dragon | |
Dragon, True | Dragon | Colossal | 26 |
| Juvenile Silver Dragon | |
Dragon, True | Dragon | Large | 10 |
| Mature adult Silver Dragon | |
Dragon, True | Dragon | Huge | 18 |
| Old Silver Dragon | |
Dragon, True | Dragon | Huge | 20 |
| Very old Silver Dragon | |
Dragon, True | Dragon | Huge | 21 |
| Very young Silver Dragon | |
Dragon, True | Dragon | Medium | 5 |
| Wyrm Silver Dragon | |
Dragon, True | Dragon | Gargantuan | 24 |
| Wyrmling Silver Dragon | |
Dragon, True | Dragon | Small | 4 |
| Young Silver Dragon | |
Dragon, True | Dragon | Medium | 7 |
| Young adult Silver Dragon | |
Dragon, True | Dragon | Large | 13 |
| Sirine | RPTok | Sirine | Fey | Medium | 5 |
| Sirrush | RPTok | Sirrush | Magical Beast | Large | 24 |
| Three-Headed Sirrush | RPTok | Sirrush | Magical Beast | Large | 28 |
| Advanced Megaraptor Skeleton | RPTok | Skeleton | Undead | Huge | 6 |
| Skum | |
Skum | Aberration | Medium | 2 |
| Dire Snake | |
Dire Animal | Animal | Huge | 5 |
| Huge Viper Snake | RPTok | Snake | Animal | Huge | 3 |
| Large Viper Snake | RPTok | Snake | Animal | Large | 2 |
| Legendary Snake | RPTok | Legendary Animals | Animal | Large | 8 |
| Medium Viper Snake | RPTok | Snake | Animal | Medium | 1 |
| Small Viper Snake | RPTok | Snake | Animal | Small | 1/2 |
| Tiny Viper Snake | RPTok | Snake | Animal | Tiny | 1/3 |
| Spark Guardian | |
Guardian Familiars | Construct | Tiny | 3 |
| Spawn of Kyuss | RPTok | Spawn of Kyuss | Undead | Medium | 5 |
| Spectre | |
Spectre | Undead | Medium | 7 |
| Spell Weaver | RPTok | Spell Weaver | Monstrous Humanoid | Medium | 10 |
| Spellgaunt | RPTok | Spellgaunt | Magical Beast | Large | 12 |
| Spellstitched Ghast | RPTok | Spellstitched | Undead | Medium | 4 |
| Spider Eater | |
Spider Eater | Magical Beast | Large | 5 |
| Spider Swarm | RPTok | Swarm | Vermin | Diminutive | 1 |
| Spinosaurus | RPTok | Dinosaur | Animal | Gargantuan | 13 |
| Spirit Naga | RPTok | Naga | Aberration | Large | 9 |
| Spirit of the Land | RPTok | Spirit of the Land | Fey | Huge | 23 |
| Spithriku | RPTok | Spithriku | Outsider | Medium | 10 |
| Spitting Felldrake | |
Felldrake | Dragon | Medium | 2 |
| Squid | RPTok | Squid | Animal | Medium | 1 |
| Giant Squid | RPTok | Squid, Giant | Animal | Huge | 9 |
| Stained Glass Golem | |
Golem | Construct | Medium | 5 |
| Stirge | |
Stirge | Magical Beast | Tiny | 1/2 |
| Stone Colossus | RPTok | Colossus | Construct | Colossal | 24 |
| Stone Giant | RPTok | Giant | Giant | Large | 8 (elder 9) |
| Stone Golem | |
Golem | Construct | Large | 11 |
| Greater Stone Golem | |
Golem | Construct | Huge | 16 |
| Stone Half-Golem | RPTok | Half-Golem | Construct | Medium | 4 |
| Stone Spike | RPTok | Stone Spike | Elemental | Medium | 2 |
| Storm Giant | RPTok | Giant | Giant | Huge | 13 |
| Succubus | |
Demon | Outsider | Medium | 7 |
| Sun Giant | RPTok | Giant | Giant | Huge | 12 |
| 1st-Level Warrior Svirfneblin | |
Gnome | Humanoid | Small | 1 |
| Swamplight Lynx | RPTok | Swamplight Lynx | Magical Beast | Large | 7 |
| Sylph | RPTok | Sylph | Outsider | Small | 5 |