5e:Habitat/Swamp
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< Habitat
Swamp Habitat includes mangrove swampss, bogs, fens, marshes, moors, etc.
Swamp Creatures
214 monsters (not including named individuals)
| Monster | Habitat | Size | Type | Tags | Alignment | HP | CR | Marked | Source |
|---|---|---|---|---|---|---|---|---|---|
| Allip | Swamp, Urban | Medium | Undead | Neutral Evil | 40 | 5 | Canon, Pointer | Varied | |
| Amidor | Forest, Grassland, Hill, Swamp | Small | Plant | Dandelion | Neutral Good | 38 | 1/2 | Canon, Pointer | The Wild Beyond the Witchlight |
| Amphisbaena | Desert, Grassland, Swamp | Medium | Monstrosity | Unaligned | 11 | 1/2 | Canon, Pointer | Varied, GoS, MOoT | |
| Deva | Arctic, Coastal, Desert, Feywild, Forest, Grassland, Hill, Mountain, Shadowfell, Swamp, Underground, Underwater | Medium | Celestial | Angel | Lawful Good | 136 | 10 | Canon | SRD-OGL v5.1 |
| Anhkolox | Arctic, Coastal, Forest, Grassland, Hill, Mountain, Swamp | Huge | Undead | Neutral Evil | 157 | 9 | Canon, Pointer | Dragonlance Shadow of the Dragon Queen | |
| Giant Ant | Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground | Large | Beast | Ant, Giant Ant | Unaligned | 52 | 2 | Noncanon | Tome of Beasts |
| Giant Ant Queen | Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground | Large | Beast | Ant, Giant Ant | Unaligned | 85 | 4 | Noncanon | |
| Giant Ant Soldier | Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground | Large | Beast | Ant, Giant Ant | Unaligned | 73 | 3 | Noncanon, User Creation | Rlyehable |
| Burnished Hart | Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground | Medium | Construct | Anvilwrought | Unaligned | 45 | 2 | Canon, Pointer | Mythic Odysseys of Theros |
| Anvilwrought Raptor | Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground, Underwater, Urban | Tiny | Construct | Anvilwrought | Unaligned | 18 | 1/2 | Canon, Pointer | Mythic Odysseys of Theros |
| Aranea | Forest, Swamp, Underground | Medium | Monstrosity | Shapechanger | Neutral Evil | 32 | 2 | Noncanon, User Creation | Rlyehable |
| Arrp | Swamp | Medium | Humanoid | Bullywug, Bullywug Croaker | Neutral Evil | 33 | 2 | Canon, Pointer | Ghosts of Saltmarsh |
| Asher | Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Shadowfell, Swamp, Underground | Medium | Undead | Neutral Evil | 58 | 7 | Noncanon, User Creation | Rlyehable | |
| Assassin Vine | Forest, Swamp | Large | Plant | Assassin Vine | Unaligned | 85 | 3 | Canon, Pointer | Ghosts of Saltmarsh |
| Jade Assassin Vine | Forest, Swamp | Large | Plant | Assassin Vine | Neutral | 30 | 2 | Noncanon, User Creation | Rlyehable |
| Atomie | Feywild, Forest, Swamp | Tiny | Fey | Sprite | Chaotic Neutral | 4 | 1/4 | Noncanon | Varied |
| Awakened Toadstool | Forest, Grassland, Swamp, Feywild | Tiny | Plant | Awakened Plant | Unaligned | 1 | 0 | Canon, Pointer | The Wild Beyond the Witchlight |
| Bal-Oon | Coastal, Desert, Forest, Swamp | Small | Monstrosity | Unaligned | 7 | 1/4 | Noncanon, User Creation | Rlyehable | |
| Bauble | Feywild, Forest, Swamp, Underdark, Urban | Small | Fey | Darkling | Chaotic Neutral | 13 | 1/2 | Canon, Pointer | The Wild Beyond the Witchlight |
| Bavlorna Blightstraw | Feywild, Forest, Swamp, Urban | Medium | Fey | Hag | Neutral Evil | 110 | 7 | Canon, Pointer | The Wild Beyond the Witchlight |
| Bloody Toes | Forest, Hill, Swamp | Small | Fey | Redcap | Chaotic Evil | 45 | 3 | Canon, Pointer | The Wild Beyond the Witchlight |
| Bogart | Feywild, Forest, Grassland, Swamp | Small | Fey | Shapechanger | Chaotic Neutral | 21 | 1 | Noncanon | Varied |
| Bramble | Feywild, Forest, Grassland, Swamp | Tiny | Fey | Neutral Evil | 2 | 1/8 | Noncanon | Varied | |
| Buckawn | Feywild, Forest, Swamp | Small | Fey | Brownie | Neutral | 3 | 1/8 | Noncanon | Varied |
| Bullywug | Swamp | Medium | Humanoid | Bullywug | Neutral Evil | 11 | 1/4 | Canon, Pointer | Monster Manual (5e) |
| Bullywug Croaker | Swamp | Medium | Humanoid | Bullywug, Bullywug Croaker | Neutral Evil | 33 | 2 | Canon, Pointer | Ghosts of Saltmarsh |
| Bullywug Knight | Swamp | Medium | Humanoid | Bullywug, Bullywug Knight | Lawful Good | 66 | 3 | Canon, Pointer | The Wild Beyond the Witchlight |
| Bullywug Royal Overview | Swamp | Overview | Humanoid, Bullywug, Bullywug Royal | Canon, Pointer | Varied, GoS, TWBtW | ||||
| Bullywug Royal of Downfall | Feywild, Swamp | Medium | Humanoid | Bullywug, Bullywug Royal | Any Alignment | 65 | 3 | Canon, Pointer | The Wild Beyond the Witchlight |
| Bullywug Royal of Dunwater | Swamp | Medium | Humanoid | Bullywug, Bullywug Royal | Neutral Evil | 52 | 3 | Canon, Pointer | Ghosts of Saltmarsh |
| Butterfly | Forest, Grassland, Hill, Swamp | Tiny | Beast | Insect, Butterfly | Unaligned | 1 | 0 | Canon, Pointer | The Wild Beyond the Witchlight |
| Crag Cat | Arctic, Coastal, Desert, Grassland, Hill, Mountain, Swamp | Large | Beast | Unaligned | 34 | 1 | Canon, Pointer | Storm King's Thunder | |
| Centipede | Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground, Urban | Tiny | Beast | Insect, Centipede | Unaligned | 2 | 0 | Noncanon, User Creation | Rlyehable |
| Dread Centipede | Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground | Large | Beast | Centipede | Unaligned | 124 | 8 | Noncanon, User Creation | Rlyehable |
| Charm | Feywild, Forest, Swamp, Underdark, Urban | Medium | Fey | Darkling, Darkling Elder | Chaotic Neutral | 27 | 2 | Canon, Pointer | The Wild Beyond the Witchlight |
| Crocodile | Coastal, Swamp, Urban | Large | Beast | Crocodile | Unaligned | 19 | 1/2 | Canon | SRD-OGL v5.1, SRD-CC v5.1 |
| Giant Crocodile | Swamp | Huge | Beast | Crocodile | Unaligned | 85 | 1/2 | Canon | SRD-OGL v5.1 |
| Legendary Crocodile | Swamp | Large | Monstrosity | Crocodile, Legendary Crocodile | Neutral Evil | 93 | 6 | Canon, Pointer | Ghosts of Saltmarsh |
| Darkling | Feywild, Forest, Swamp, Underdark, Urban | Small | Fey | Darkling | Chaotic Neutral | 13 | 1/2 | Canon, Pointer | varied, VGtM, MotM, TWBtW |
| Darkling Elder | Forest, Swamp, Underdark, Urban | Medium | Fey | Darkling, Darkling Elder | Chaotic Neutral | 27 | 2 | Canon, Pointer | Varied, MotM, TWBtW, VGtM |
| Decapus | Forest, Swamp | Large | Monstrosity | Decapus | Unaligned | 75 | 4 | Canon, Pointer | Tortle Package |
| Wastrilith | Coastal, Swamp, Underdark, Underground, Underwater | Large | Fiend | Demon | Chaotic Evil | 157 | 13 | Canon, Pointer | Monsters of the Multiverse |
| Dew Drinker | Forest, Swamp | Large | Plant | Horrid Plant | Unaligned | 42 | 4 | Canon, Pointer | Quests from the Infinite Staircase |
| Dracohydra | Coastal, Swamp | Huge | Monstrosity | Chaotic Evil | 218 | 11 | Canon, Pointer | Fizban's Treasury of Dragons | |
| Black Dragon Overview | Swamp | Overview | Dragon, Chromatic Dragon, Black Dragon | Noncanon | Varied | ||||
| Adult Black Dragon | Swamp | Huge | Dragon | Chromatic Dragon, Black Dragon | Chaotic Evil | 195 | 14 | Canon | SRD-OGL v5.1 |
| Ancient Black Dragon | Swamp | Gargantuan | Dragon | Chromatic Dragon, Black Dragon | Chaotic Evil | 367 | 21 | Canon | SRD-OGL v5.1 |
| Black Dragon Wyrmling | Swamp | Medium | Dragon | Chromatic Dragon, Black Dragon | Chaotic Evil | 33 | 2 | Canon | SRD-OGL v5.1 |
| Young Black Dragon | Swamp | Large | Dragon | Chromatic Dragon, Black Dragon | Chaotic Evil | 127 | 7 | Canon | SRD-OGL v5.1 |
| Gem Greatwyrm | Arctic, Coastal, Desert, Feywild, Forest, Grassland, Hill, Mountain, Shadowfell, Swamp, Underdark, Underground, Underwater | Gargantuan | Dragon | Gem Dragon | Neutral | 507 | 26 | Canon, Pointer | Fizban's Treasury of Dragons |
| Topaz Dragon Overview | Coastal, Swamp | Overview | Dragon, Gem Dragon, Topaz Dragon | Canon, Pointer | Fizban's Treasury of Dragons | ||||
| Adult Topaz Dragon | Coastal, Swamp | Huge | Dragon | Gem Dragon, Topaz Dragon | Chaotic Neutral | 210 | 13 | Canon, Pointer | Fizban's Treasury of Dragons |
| Ancient Topaz Dragon | Coastal, Swamp | Gargantuan | Dragon | Gem Dragon, Topaz Dragon | Chaotic Neutral | 280 | 20 | Canon, Pointer | Fizban's Treasury of Dragons |
| Topaz Dragon Wyrmling | Coastal, Swamp | Medium | Dragon | Gem Dragon, Topaz Dragon | Chaotic Neutral | 33 | 2 | Canon, Pointer | Fizban's Treasury of Dragons |
| Young Topaz Dragon | Coastal, Swamp | Large | Dragon | Gem Dragon, Topaz Dragon | Chaotic Neutral | 127 | 7 | Canon, Pointer | Fizban's Treasury of Dragons |
| Giant Dragonfly | Coastal, Swamp | Large | Beast | Insect | Unaligned | 22 | 1/2 | Canon, Pointer | The Wild Beyond the Witchlight |
| Dragonnel Overview | Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground, Urban | Overview | Dragon, Dragonnel | Canon, Pointer | Varied, FToD, DLSotDQ | ||||
| Dragonnel | Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground, Urban | Large | Dragon | Dragonnel | Neutral | 58 | 2 | Canon, Pointer | Fizban's Treasury of Dragons |
| Drake Overview | Arctic, Desert, Forest, Mountain, Swamp, Underdark, Underground, Urban | Overview | Dragon, Drake | Canon | Varied, FToD, HotDQ, MotM, VGtM | ||||
| Ambush Drake | Forest, Hill, Mountain, Swamp, Underground, Urban | Medium | Dragon | Drake | Unaligned | 22 | 1/2 | Canon, Pointer | Hoard of the Dragon Queen |
| Guard Drake Overview | Arctic, Desert, Forest, Mountain, Swamp, Underdark, Underground, Urban | Overview | Dragon, Drake, Guard Drake | Canon, Pointer | Varied, VGtM, MotM | ||||
| Black Guard Drake | Swamp, Urban | Medium | Dragon | Drake, Guard Drake | Unaligned | 52 | 2 | Canon, Pointer | Varied, VGtM, MotM |
| Guard Drake | Arctic, Desert, Forest, Mountain, Swamp, Underdark, Urban | Medium | Dragon | Drake, Guard Drake | Unaligned | 52 | 2 | Canon, Pointer | Varied, HotDQ, VGtM, MotM |
| Vicious Drake Overview | Arctic, Coastal, Desert, Feywild, Forest, Grassland, Hill, Mountain, Shadowfell, Swamp, Underdark, Underground | Overview | Dragon, Drake, Vicious Drake | Noncanon, User Creation | Rlyehable | ||||
| Adult Vicious Drake | Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground | Huge | Dragon | Drake, Vicious Drake | Chaotic Neutral | 225 | 15 | Noncanon, User Creation | Rlyehable |
| Ancient Vicious Drake | Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground | Gargantuan | Dragon | Drake, Vicious Drake | Chaotic Neutral | 396 | 22 | Noncanon, User Creation | Rlyehable |
| Vicious Drake Wyrmling | Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground | Medium | Dragon | Drake, Vicious Drake | Chaotic Neutral | 52 | 3 | Noncanon, User Creation | Rlyehable |
| Young Vicious Drake | Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground | Large | Dragon | Drake, Vicious Drake | Chaotic Neutral | 152 | 9 | Noncanon, User Creation | Rlyehable |
| Druid | Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground | Medium | Humanoid | Any Race, Druid | Any Alignment | 27 | 2 | Canon | SRD-OGL v5.1 |
| Duke Ickrind | Feywild, Swamp | Medium | Humanoid | Bullywug | Neutral | 11 | 1/4 | Canon, Pointer | The Wild Beyond the Witchlight |
| Dumphrey Frogart | Feywild, Swamp | Medium | Humanoid | Bullywug, Bullywug Knight | Lawful Good | 66 | 3 | Canon, Pointer | The Wild Beyond the Witchlight |
| Mud Elemental | Coastal, Swamp, Underwater | Large | Elemental | Mud Elemental | Neutral | 114 | 5 | Canon, Pointer | Quests from the Infinite Staircase |
| Water Elemental | Coastal, Swamp, Underwater | Large | Elemental | Water Elemental | Neutral | 114 | 5 | Canon | SRD-OGL v5.1 |
| Empyrean | Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground | Huge | Celestial | Titan | Varied | 313 | 23 | Canon, Pointer | Monster Manual (5e) |
| Endelyn Moongrave | Feywild, Forest, Swamp, Urban | Medium | Fey | Hag | Neutral Evil | 114 | 6 | Canon, Pointer | The Wild Beyond the Witchlight |
| Enkki Overview | Arctic, Coastal, Desert, Feywild, Forest, Grassland, Hill, Mountain, Shadowfell, Swamp, Underdark, Underground | Overview | Fey, Enkki | Noncanon, User Creation | Rlyehable | ||||
| Common Enkki | Arctic, Coastal, Desert, Feywild, Forest, Grassland, Hill, Mountain, Shadowfell, Swamp, Underdark, Underground | Small | Fey | Enkki | Chaotic Neutral | 6 | 1/4 | Noncanon, User Creation | Rlyehable |
| Enkki Sorcerer | Arctic, Coastal, Desert, Feywild, Forest, Grassland, Hill, Mountain, Shadowfell, Swamp, Underdark, Underground | Small | Fey | Enkki | Chaotic Neutral | 31 | 6 | Noncanon, User Creation | Rlyehable |
| Giant Fly | Urban, Grassland, Swamp | Large | Beast | Insect | Unaligned | 19 | 0 | Canon | SRD-OGL v5.1 |
| Giant Frog | Forest, Swamp | Medium | Beast | Frog | Unaligned | 18 | 1/4 | Canon | SRD-OGL v5.1 |
| Froghemoth Overview | Swamp, Underdark | Overview | Monstrosity, Froghemoth | Canon, Pointer | Volo's Guide to Monsters | ||||
| Froghemoth | Swamp, Underdark | Huge | Monstrosity | Froghemoth | Unaligned | 10 | Canon, Pointer | Varied, VGtM, MotM | |
| Froghemoth Elder | Swamp, Underdark | Huge | Monstrosity | Froghemoth | Unaligned | 207 | 15 | Canon, Pointer | Quests from the Infinite Staircase |
| Froghemoth Juvenile | Swamp, Underdark | Large | Monstrosity | Froghemoth | Unaligned | 64 | 6 | Noncanon, User Creation | Rlyehable |
| Garurt | Forest, Swamp | Medium | Humanoid | Lizardfolk, Lizardfolk Scaleshield | Neutral | 32 | 1 | Canon, Pointer | Ghosts of Saltmarsh |
| Ghast | Shadowfell, Swamp, Underdark, Underground, Urban | Medium | Undead | Ghoul, Ghast | Chaotic Evil | 36 | 2 | Canon | SRD-OGL v5.1 |
| Drizlash Ghast | Shadowfell, Swamp, Underdark, Underground, Urban | Medium | Undead | Ghoul, Ghast | Chaotic Evil | 36 | 2 | Canon, Pointer | Varied, CoS, SRD5 |
| Ghoul | Shadowfell, Swamp, Underdark, Underground, Urban | Medium | Undead | Ghoul | Chaotic Evil | 22 | 1 | Canon | SRD-OGL v5.1 |
| Gulpa'Gor | Swamp | Medium | Humanoid | Bullywug, Bullywug Royal | Neutral Evil | 52 | 3 | Canon, Pointer | Ghosts of Saltmarsh |
| Green Hag | Feywild, Forest, Hill, Swamp | Medium | Fey | Hag, Green Hag | Neutral Evil | 82 | 3 | Canon | SRD-OGL v5.1 |
| Heavenly Sovereign Green Hag | Feywild, Forest, Hill, Swamp, Wildes | Medium | Fey | Hag | Neutral Evil | 229 | 11 | Noncanon, Pointer | Venture Maidens Campaign Guide |
| Horrid Plant Overview | Forest, Swamp | Overview | Plant, Horrid Plant | Canon, Pointer | Quests from the Infinite Staircase | ||||
| Hydra | Swamp | Huge | Monstrosity | Hydra | Unaligned | 172 | 8 | Canon | SRD-OGL v5.1 |
| Ihrtos | Forest, Swamp | Medium | Humanoid | Lizardfolk, Lizardfolk Subchief | Neutral | 52 | 3 | Canon, Pointer | Ghosts of Saltmarsh |
| Swarm of Beetles | Desert, Forest, Grassland, Hill, Swamp, Underdark, Underground, Urban | Medium | Swarm | Beast, Insect, Beetle | Unaligned | 22 | 1/2 | Canon | Varied, SRD5, MM5 |
| Swarm of Centipedes | Desert, Forest, Grassland, Hill, Swamp, Underdark, Underground, Urban | Medium | Swarm | Beast, Insect, Centipede | Unaligned | 22 | 1/2 | Canon | Varied, SRD5, MM5 |
| Swarm of Insects | Desert, Forest, Grassland, Hill, Swamp, Underdark, Underground, Urban | Medium | Swarm | Beast, Insect | Unaligned | 22 | 1/2 | Canon | SRD-OGL v5.1 |
| Swarm of Spiders | Desert, Forest, Grassland, Hill, Swamp, Underdark, Underground, Urban | Medium | Swarm | Beast, Insect, Spider | Unaligned | 22 | 1/2 | Canon | Varied, SRD5, MM5 |
| Swarm of Wasps | Desert, Forest, Grassland, Hill, Swamp, Underdark, Underground, Urban | Medium | Swarm | Beast, Insect, Wasp | Unaligned | 22 | 1/2 | Canon | Varied, SRD5, MM5 |
| Killmoulis | Arctic, Coastal, Desert, Feywild, Forest, Grassland, Hill, Mountain, Swamp, Underground, Urban | Tiny | Fey | Neutral | 7 | 0 | Canon, Pointer | Mordenkainen's Fiendish Folio Volume 1 | |
| Klarg | Feywild, Forest, Hill, Swamp | Huge | Fey | Chaotic Neutral | 92 | 7 | Noncanon, User Creation | Rlyehable | |
| Kobold Overview | Coastal, Desert, Forest, Hill, Mountain, Swamp, Underdark, Underground, Urban | Overview | Humanoid, Kobold | Noncanon | Varied | ||||
| Kobold | Coastal, Desert, Forest, Hill, Mountain, Swamp, Underdark, Underground, Urban | Small | Humanoid | Kobold | Lawful Evil | 5 | 1/8 | Canon | SRD-OGL v5.1 |
| Kobold Alchemist | Coastal, Desert, Forest, Hill, Mountain, Swamp, Underdark, Underground, Urban | Small | Humanoid | Kobold | Lawful Neutral | 44 | 2 | Noncanon | Tome of Beasts |
| Kobold Chieftain | Coastal, Desert, Forest, Hill, Mountain, Swamp, Underdark, Underground, Urban | Small | Humanoid | Kobold | Lawful Evil | 82 | 4 | Noncanon | Tome of Beasts |
| Kobold Dragon-Blessed | Coastal, Desert, Forest, Hill, Mountain, Swamp, Underdark, Underground, Urban | Small | Humanoid | Kobold | Lawful Evil | 9 | 1/2 | Noncanon, User Creation | Rlyehable |
| Kobold Trapsmith | Coastal, Desert, Forest, Hill, Mountain, Swamp, Underdark, Underground, Urban | Small | Humanoid | Kobold | Lawful Neutral | 36 | 1 | Noncanon | Tome of Beasts |
| Winged Kobold | Coastal, Desert, Forest, Hill, Mountain, Swamp, Underdark, Underground, Urban | Small | Humanoid | Kobold | Lawful Evil | 7 | 1/4 | Canon, Pointer | Monster Manual (5e) |
| Krell Grohlg | Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground | Medium | Humanoid | Half-Orc, Druid | Chaotic Evil | 27 | 2 | Canon | Varied |
| Ktip | Feywild, Forest, Grassland, Hill, Swamp | Tiny | Fey | Chaotic Neutral | 3 | 1/8 | Noncanon, User Creation | Rlyehable | |
| Giant Lizard | Coastal, Desert, Forest, Swamp, Underdark, Underground | Large | Beast | Lizard | Unaligned | 19 | 1/4 | Canon | SRD-OGL v5.1 |
| Lizardfolk Overview | Forest, Swamp | Overview | Humanoid, Lizardfolk | Noncanon | Varied | ||||
| Lizardfolk | Forest, Swamp | Medium | Humanoid | Lizardfolk | Neutral | 22 | 1/2 | Canon | SRD-OGL v5.1 |
| Lizardfolk Commoner | Forest, Swamp | Medium | Humanoid | Lizardfolk | Neutral | 16 | 1/4 | Canon, Pointer | Ghosts of Saltmarsh |
| Lizardfolk King/Queen | Forest, Swamp | Medium | Humanoid | Lizardfolk, Lizardfolk King/Queen | Chaotic Evil | 78 | 4 | Canon, Pointer | Monster Manual (5e) |
| Lizardfolk Liberator | Forest, Swamp | Medium | Humanoid | Lizardfolk | Neutral | 105 | 5 | Noncanon, User Creation | Rlyehable |
| Lizardfolk Render | Forest, Swamp | Large | Humanoid | Lizardfolk | Neutral | 52 | 3 | Canon, Pointer | Ghosts of Saltmarsh |
| Lizardfolk Scaleshield | Forest, Swamp | Medium | Humanoid | Lizardfolk, Lizardfolk Scaleshield | Neutral | 32 | 1 | Canon, Pointer | Ghosts of Saltmarsh |
| Lizardfolk Shaman | Forest, Swamp | Medium | Humanoid | Lizardfolk, Druid | Neutral | 27 | 2 | Canon, Pointer | Monster Manual (5e) |
| Lizardfolk Subchief | Forest, Swamp | Medium | Humanoid | Lizardfolk, Lizardfolk Subchief | Neutral | 52 | 3 | Canon, Pointer | Ghosts of Saltmarsh |
| Maurezhi | Swamp, Urban | Medium | Fiend | Demon | Chaotic Evil | 88 | 7 | Canon, Pointer | Monsters of the Multiverse |
| Meazel | Desert, Forest, Grassland, Hill, Mountain, Shadowfell, Swamp, Underdark, Underground, Urban | Medium | Humanoid | Neutral Evil | 35 | 1 | Canon, Pointer | Mordenkainen's Tome of Foes | |
| Meenlock | Feywild, Forest, Swamp, Urban | Small | Fey | Neutral Evil | 31 | 2 | Canon, Pointer | Volo's Guide to Monsters | |
| Mud Mephit | Swamp | Small | Elemental | Mephit | Neutral Evil | 27 | 1/4 | Canon, Pointer | Monster Manual (5e) |
| Mist Walker | Feywild, Forest, Grassland, Swamp | Large | Fey | Giant | Chaotic Neutral | 110 | 6 | Noncanon, User Creation | Rlyehable |
| Monkey Overview | Forest, Swamp | Overview | Beast, Monkey | Noncanon | Varied | ||||
| Monkey | Forest, Swamp | Small | Beast | Monkey | Unaligned | 2 | 1/8 | Noncanon, User Creation | Rlyehable |
| Flying Monkey | Feywild, Forest, Shadowfell, Swamp | Small | Beast | Monkey, Flying Monkey | Unaligned | 3 | 0 | Canon, Pointer | Tomb of Annihilation |
| Flying Monkey Aerialist | Feywild, Forest, Shadowfell, Swamp | Small | Beast | Monkey, Flying Monkey | Unaligned | 5 | 1/8 | Noncanon, User Creation | Rlyehable |
| Nagpa | Coastal, Desert, Forest, Swamp, Urban | Medium | Humanoid | Nagpa | Neutral Evil | 187 | 17 | Canon, Pointer | Mordenkainen's Tome of Foes |
| Nightwalker | Arctic, Desert, Swamp | Huge | Undead | Chaotic Evil | 297 | 20 | Canon, Pointer | Mordenkainen's Tome of Foes | |
| Oblex Overview | Swamp, Underdark, Urban | Overview | Ooze, Oblex | Canon, Pointer | Mordenkainen's Tome of Foes | ||||
| Adult Oblex | Swamp, Underdark, Urban | Medium | Ooze | Oblex | Lawful Evil | 75 | 5 | Canon, Pointer | Mordenkainen's Tome of Foes |
| Elder Oblex | Swamp, Underdark, Urban | Huge | Ooze | Oblex | Lawful Evil | 115 | 10 | Canon, Pointer | Mordenkainen's Tome of Foes |
| Oblex Spawn | Swamp, Underdark, Underground, Urban | Tiny | Ooze | Oblex | Lawful Evil | 18 | 1/4 | Canon, Pointer | Mordenkainen's Tome of Foes |
| Orc Overview | Arctic, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground | Overview | Humanoid, Orc | Canon | Varied, SRD5, MM5e, VGtM | ||||
| Orc Blade of Ilneval | Arctic, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground | Medium | Humanoid | Orc | Chaotic Evil | 60 | 4 | Canon, Pointer | Volo's Guide to Monsters |
| Orc Claw of Luthic | Arctic, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground | Medium | Humanoid | Orc | Chaotic Evil | 45 | 2 | Canon, Pointer | Volo's Guide to Monsters |
| Orc | Arctic, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground | Medium | Humanoid | Orc | Chaotic Evil | 15 | 1/2 | Canon | SRD-OGL v5.1 |
| Orc Eye of Gruumsh | Arctic, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground | Medium | Humanoid | Orc, Cleric | Chaotic Evil | 45 | 2 | Canon, Pointer | Monster Manual (5e) |
| Orc Hand of Yurtrus | Arctic, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground | Medium | Humanoid | Orc | Chaotic Evil | 30 | 2 | Canon, Pointer | Volo's Guide to Monsters |
| Orc Nurtured One of Yurtrus | Arctic, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground | Medium | Humanoid | Orc | Chaotic Evil | 30 | 1/2 | Canon, Pointer | Volo's Guide to Monsters |
| Orc Red Fang of Shargaas | Arctic, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground | Medium | Humanoid | Orc | Chaotic Evil | 52 | 3 | Canon, Pointer | Volo's Guide to Monsters |
| Orc War Chief | Arctic, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground | Medium | Humanoid | Orc | Chaotic Evil | 93 | 4 | Canon, Pointer | Monster Manual (5e) |
| Othokent | Forest, Swamp | Medium | Humanoid | Lizardfolk, Lizardfolk King/Queen | Lawful Neutral | 78 | 4 | Canon, Pointer | Varied, GoS, MM5 |
| Pest Mascot | Swamp, Urban | Tiny | Monstrosity | Unaligned | 22 | 1/4 | Canon, Pointer | Strixhaven | |
| Purple Blossom | Forest, Swamp | Large | Plant | Horrid Plant | Unaligned | 42 | 4 | Canon, Pointer | Quests from the Infinite Staircase |
| Giant Rat | Forest, Swamp, Underdark, Underground, Urban | Small | Beast | Rat, Giant Rat | Unaligned | 7 | 1/8 | Canon | SRD-OGL v5.1 |
| Diseased Giant Rat | Forest, Swamp, Underdark, Underground, Urban | Small | Beast | Rat, Giant Rat | Unaligned | 7 | 1/8 | Canon | SRD-OGL v5.1 |
| Swarm of Rats | Swamp, Underground, Urban | Medium | Swarm | Beast, Rat | Unaligned | 24 | 1/4 | Canon | SRD-OGL v5.1 |
| Swarm of Ravens | Forest, Hill, Swamp, Urban | Medium | Swarm | Beast, Raven | Unaligned | 24 | 1/4 | Canon | SRD-OGL v5.1 |
| Redcap | Forest, Hill, Swamp | Small | Fey | Chaotic Evil | 45 | 3 | Canon, Pointer | Volo's Guide to Monsters | |
| Revenant Overview | Arctic, Desert, Forest, Hill, Swamp, Urban | Overview | Undead, Revenant | Canon, Pointer | Varied, MM5, UAGH | ||||
| Revenant | Arctic, Desert, Forest, Hill, Swamp, Urban | Medium | Undead | Revenant | Neutral | 136 | 5 | Canon, Pointer | Monster Manual (5e) |
| Swarm of Rot Grubs | Swamp, Underdark, Underground | Medium | Swarm | Beast | Unaligned | 22 | 1/2 | Canon, Pointer | Volo's Guide to Monsters |
| Sauriv | Coastal, Forest, Swamp, Urban | Medium | Humanoid | Lizardfolk | Lawful Neutral | 9 | 1/8 | Canon | Varied, GOS, SRD5 |
| Scout | Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground | Medium | Humanoid | Any Race, Scout | Any Alignment | 9 | 1/2 | Canon | SRD-OGL v5.1 |
| Shadow Mastiff | Forest, Hill, Shadowfell, Swamp | Medium | Monstrosity | Shadow Mastiff | Neutral Evil | 33 | 2 | Canon, Pointer | Volo's Guide to Monsters |
| Shadow Mastiff Alpha | Forest, Hill, Shadowfell, Swamp | Medium | Monstrosity | Shadow Mastiff | Neutral Evil | 49 | 2 | Canon, Pointer | Volo's Guide to Monsters |
| Shambling Mound | Forest, Swamp | Large | Plant | Unaligned | 136 | 6 | Canon | SRD-OGL v5.1 | |
| Skabatha Nightshade | Feywild, Forest, Swamp, Urban | Medium | Fey | Hag | Neutral Evil | 150 | 8 | Canon, Pointer | The Wild Beyond the Witchlight |
| Skulk | Coastal, Forest, Shadowfell, Swamp, Underdark, Underground, Urban | Medium | Humanoid | Chaotic Neutral | 18 | 1/2 | Canon, Pointer | Mordenkainen's Tome of Foes | |
| Skull Lord | Desert, Shadowfell, Swamp | Medium | Undead | Lawful Evil | 105 | 15 | Canon, Pointer | Mordenkainen's Tome of Foes | |
| Giant Snail | Forest, Grassland, Swamp | Large | Beast | Snail | Unaligned | 22 | 1/4 | Canon, Pointer | The Wild Beyond the Witchlight |
| Constrictor Snake | Desert, Forest, Swamp, Underwater | Large | Beast | Snake | Unaligned | 13 | 1/4 | Canon | SRD-OGL v5.1 |
| Giant Constrictor Snake | Desert, Forest, Swamp, Underdark, Underground, Underwater | Huge | Beast | Snake | Unaligned | 60 | 2 | Canon | SRD-OGL v5.1 |
| Poisonous Snake | Coastal, Desert, Forest, Grassland, Hill, Swamp | Tiny | Beast | Snake | Unaligned | 2 | 1/8 | Canon | SRD-OGL v5.1, SRD-CC v5.1 |
| Giant Poisonous Snake | Desert, Forest, Grassland, Swamp, Underdark, Underground, Urban | Medium | Beast | Snake | Unaligned | 11 | 1/4 | Canon | SRD-OGL v5.1 |
| Swarm of Poisonous Snakes | Forest, Swamp | Medium | Swarm | Beast, Snake | Unaligned | 36 | 2 | Canon | SRD-OGL v5.1 |
| Snapper Saw | Forest, Swamp | Large | Plant | Horrid Plant | Unaligned | 42 | 4 | Canon, Pointer | Quests from the Infinite Staircase |
| Lost Sorrowsworn | Arctic, Desert, Forest, Mountain, Shadowfell, Swamp, Underdark, Urban | Medium | Monstrosity | Sorrowsworn | Neutral Evil | 78 | 7 | Canon, Pointer | Mordenkainen's Tome of Foes |
| Wretched Sorrowsworn | Shadowfell, Swamp, Underdark, Underground, Urban | Small | Monstrosity | Sorrowsworn | Neutral Evil | 10 | 1/4 | Canon, Pointer | Mordenkainen's Tome of Foes |
| Spider Overview | Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground, Urban | Overview | Beast, Spider | Noncanon | Varied | ||||
| Giant Spider | Desert, Forest, Swamp, Underdark, Underground, Urban | Large | Beast | Spider | Unaligned | 26 | 1 | Canon | SRD-OGL v5.1, SRD-CC v5.1 |
| Greater Star Spawn Emissary | Mountain, Shadowfell, Swamp, Urban | Huge | Aberration | Star Spawn | 289 | 21 | Canon, Pointer | Van Richten's Guide to Ravenloft | |
| Lesser Star Spawn Emissary | Mountain, Shadowfell, Swamp, Urban | Medium | Aberration | Star Spawn | 241 | 19 | Canon, Pointer | Van Richten's Guide to Ravenloft | |
| Star Spawn Grue | Mountain, Swamp | Small | Aberration | Star Spawn | Neutral Evil | 17 | 1/4 | Canon, Pointer | Mordenkainen's Tome of Foes |
| Star Spawn Hulk | Mountain, Swamp, Urban | Large | Aberration | Star Spawn | Chaotic Evil | 16 | 10 | Canon, Pointer | Mordenkainen's Tome of Foes |
| Star Spawn Seer | Mountain, Swamp, Urban | Medium | Aberration | Star Spawn | Neutral Evil | 153 | 13 | Canon, Pointer | Mordenkainen's Tome of Foes |
| Stirge | Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground, Urban | Tiny | Beast | Unaligned | 2 | 1/8 | Canon | SRD-OGL v5.1 | |
| Swamp Spirit | Feywild, Swamp | Small | Fey | Neutral Evil | 27 | 1/4 | Canon, Pointer | Journeys through the Radiant Citadel | |
| Sword Wraith Commander | Grassland, Swamp | Medium | Undead | Sword Wraith | Lawful Evil | 127 | 8 | Canon, Pointer | Mordenkainen's Tome of Foes |
| Sword Wraith Warrior | Grassland, Swamp | Medium | Undead | Sword Wraith | Lawful Evil | 45 | 3 | Canon, Pointer | Mordenkainen's Tome of Foes |
| Thorny | Forest, Swamp, Underground | Medium | Plant | Vegepygmy | Neutral | 27 | 1 | Canon, Pointer | Volo's Guide to Monsters |
| Thorny Hunter | Forest, Swamp, Underdark, Underground | Medium | Plant | Vegepygmy, Thorny | Neutral | 27 | 2 | Canon, Pointer | Quests from the Infinite Staircase |
| Thousand Teeth | Swamp | Large | Monstrosity | Crocodile, Legendary Crocodile | Neutral Evil | 93 | 6 | Canon, Pointer | Ghosts of Saltmarsh |
| Giant Toad | Coastal, Desert, Forest, Swamp, Underdark, Underground | Large | Beast | Frog, Giant Toad | Unaligned | 39 | 1 | Canon | SRD-OGL v5.1 |
| Trepsin | Arctic, Forest, Hill, Mountain, Swamp, Underdark, Underground | Large | Giant | Troll, Four-Armed Troll | Chaotic Evil | 84 | 6 | Canon, Pointer | Hoard of the Dragon Queen |
| Tribal Warrior | Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground | Medium | Humanoid | Any Race | Any Alignment | 11 | 1/8 | Canon | SRD-OGL v5.1 |
| Trinket | Feywild, Forest, Swamp, Underdark, Urban | Small | Fey | Darkling | Chaotic Neutral | 13 | 1/2 | Canon, Pointer | The Wild Beyond the Witchlight |
| Troll | Arctic, Forest, Hill, Mountain, Swamp, Underdark, Underground | Large | Giant | Troll | Chaotic Evil | 84 | 5 | Canon | SRD-OGL v5.1 |
| Four-Armed Troll | Arctic, Forest, Hill, Mountain, Swamp, Underdark, Underground | Large | Giant | Troll, Four-Armed Troll | Chaotic Evil | 84 | 6 | Canon, Pointer | Hoard of the Dragon Queen |
| Rot Troll | Arctic, Desert, Forest, Hill, Mountain, Shadowfell, Swamp, Underdark, Underground | Large | Giant | Troll | Chaotic Evil | 138 | 9 | Canon, Pointer | Mordenkainen's Tome of Foes |
| Spirit Troll | Arctic, Forest, Hill, Mountain, Swamp, Underdark, Underground | Large | Giant | Troll | Chaotic Evil | 97 | 11 | Canon, Pointer | Mordenkainen's Tome of Foes |
| Venom Troll | Arctic, Forest, Hill, Mountain, Swamp, Underdark, Underground | Large | Giant | Troll | Chaotic Evil | 94 | 7 | Canon, Pointer | Mordenkainen's Tome of Foes |
| Vampiric Mist MToF | Arctic, Coastal, Forest, Grassland, Mountain, Swamp, Underdark, Underground, Urban | Medium | Undead | Vampiric Mist | Chaotic Evil | 30 | 3 | Canon, Pointer | Mordenkainen's Tome of Foes |
| Vampiric Mist TftYP | Arctic, Coastal, Forest, Grassland, Mountain, Swamp, Underdark, Underground, Urban | Medium | Undead | Vampiric Mist | Chaotic Evil | 45 | 3 | Canon, Pointer | Tales from the Yawning Portal |
| Vargouille | Desert, Swamp, Underdark, Underground | Tiny | Fiend | Chaotic Evil | 13 | 1 | Canon, Pointer | Volo's Guide to Monsters | |
| Vegepygmy Overview | Forest, Swamp, Underground | Overview | Plant, Fungus, Vegepygmy | Noncanon | Varied, VGtM, MotM, QftIS | ||||
| Vegepygmy | Forest, Swamp, Underground | Small | Plant | Fungus, Vegepygmy | Neutral | 9 | 1/4 | Canon, Pointer | Volo's Guide to Monsters |
| Vegepygmy Chief | Forest, Swamp, Underground | Small | Plant | Fungus, Vegepygmy | Neutral | 33 | 2 | Canon, Pointer | Volo's Guide to Monsters |
| Vortanim | Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground | Medium | Humanoid | Human, Druid | Neutral Good | 27 | 2 | Canon | Varied, GoS, SRD5 |
| Vyth | Forest, Swamp | Medium | Humanoid | Lizardfolk, Lizardfolk Scaleshield | Neutral | 32 | 1 | Canon, Pointer | Ghosts of Saltmarsh |
| Warlock of the Archfey | Arctic, Forest, Mountain, Swamp, Urban | Medium | Humanoid | any race | any alignment | 49 | 4 | Canon, Pointer | Volo's Guide to Monsters |
| Wight | Desert, Swamp, Underdark, Underground, Urban | Medium | Undead | Wight | Neutral Evil | 45 | 3 | Canon | SRD-OGL v5.1 |
| Will-o'-Wisp | Forest, Swamp, Urban | Tiny | Undead | Chaotic Evil | 22 | 2 | Canon | SRD-OGL v5.1 | |
| Wolf-in-Sheep's-Clothing | Forest, Swamp, Swamp | Medium | Plant | Unaligned | 112 | 7 | Canon, Pointer | Quests from the Infinite Staircase | |
| Yuan-ti Abomination | Desert, Forest, Swamp | Large | Monstrosity | Shapechanger, Yuan-ti | Neutral Evil | 127 | 7 | Canon, Pointer | Monster Manual (5e) |
| Yuan-ti Malison Type 1 | Desert, Forest, Swamp | Medium | Monstrosity | Shapechanger, Yuan-ti | Neutral Evil | 66 | 3 | Canon, Pointer | Monster Manual (5e) |
| Yuan-ti Malison Type 2 | Desert, Forest, Swamp | Medium | Monstrosity | Shapechanger, Yuan-ti | Neutral Evil | 66 | 3 | Canon, Pointer | Monster Manual (5e) |
| Yuan-ti Malison Type 3 | Desert, Forest, Swamp | Medium | Monstrosity | Shapechanger, Yuan-ti | Neutral Evil | 66 | 3 | Canon, Pointer | Monster Manual (5e) |
| Yuan-ti Malison Type 4 | Desert, Forest, Swamp | Medium | Monstrosity | Shapechanger, Yuan-ti | Neutral Evil | 66 | 3 | Canon, Pointer | Volo's Guide to Monsters |
| Yuan-ti Pureblood | Desert, Forest, Swamp, Urban | Medium | Humanoid | Yuan-ti | Neutral Evil | 40 | 1 | Canon, Pointer | Monster Manual (5e) |
| Zennor | Arctic, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground | Medium | Humanoid | Orc | Chaotic Good | 15 | 1/2 | Canon | Varied, TWBtW, SRD5 |