Habitat (5e)/Swamp

 5th edition Varied 
See Sources and Notes

Swamp Habitat includes mangrove swampss, bogs, fens, marshes, moors, etc.

Swamp Creatures

(235 official and unofficial monsters)

Name	Habitat	Type	Subtype	Size	HP	CR	XP	Alignment	Source
Ghoul	Shadowfell, Swamp, Underdark, Underground, Urban	Undead	Ghoul	Medium	22	1	200	Chaotic Evil	SRD-CC v5.1, SRD-OGL v5.1
Orc Claw of Luthic	Arctic, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground	Humanoid	Orc	Medium	45	2	450	Chaotic Evil	Volo's Guide to Monsters
Meenlock	Feywild, Forest, Swamp, Urban	Fey		Small	31	2	450	Neutral Evil	Volo's Guide to Monsters
Shambling Mound	Forest, Swamp	Plant		Large	136	6	2,300	Unaligned	SRD-CC v5.1, SRD-OGL v5.1
Bullywug Royal (5e)/Downfall	Feywild, Swamp	Humanoid	Bullywug, Bullywug Royal	Medium	65	3	700	Any Alignment	The Wild Beyond the Witchlight
Vortanim	Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground	Humanoid	Human, Druid	Medium	27	2	450	Neutral Good	GoS, SRD5
Swarm of Rot Grubs	Swamp, Underdark, Underground	Swarm	Beast	Medium	22	1/2	100	Unaligned	Volo's Guide to Monsters
Spider	Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground, Urban	Overview	Beast, Spider						Varied
Dragonnel Common	Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground, Urban	Dragon	Dragonnel	Large	58	2	450	Neutral	Fizban's Treasury of Dragons
Zennor	Arctic, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground	Humanoid	Orc	Medium	15	1/2	100	Chaotic Good	TWBtW, SRD5
Yuan-ti Malison (5e)/Type 5	Desert, Forest, Swamp	Monstrosity	Shapechanger, Yuan-ti	Medium	66	3	700	Neutral Evil	Volo's Guide to Monsters
Killmoulis	Arctic, Coastal, Desert, Feywild, Forest, Grassland, Hill, Mountain, Swamp, Underground, Urban	Fey		Tiny	7	0	10	Neutral	Mordenkainen's Fiendish Folio Volume 1
Wolf-in-Sheep's-Clothing	Forest, Swamp	Plant		Medium	112	7	2,900	Unaligned	Quests from the Infinite Staircase
Flail Snail	Forest, Swamp, Underdark	Elemental	Earth Elemental	Large	52	3	700	Unaligned	Varied, VGtM, MotM
Lizardfolk Scaleshield	Forest, Swamp	Humanoid	Lizardfolk, Lizardfolk Scaleshield	Medium	32	1	200	Neutral	Ghosts of Saltmarsh
Kobold Trapsmith	Coastal, Desert, Forest, Hill, Mountain, Swamp, Underdark, Underground, Urban	Humanoid	Kobold	Small	36	1	200	Lawful Neutral	"Varied"
Diseased Giant Rat	Forest, Swamp, Underdark, Underground, Urban	Beast	Rat, Giant Rat	Small	7	1/8	25	Unaligned	SRD-CC v5.1, SRD-OGL v5.1
Bramble	Feywild, Forest, Grassland, Swamp	Fey		Tiny	2	1/8	25	Neutral Evil	Rlyehable
Garurt	Forest, Swamp	Humanoid	Lizardfolk, Lizardfolk Scaleshield	Medium	32	1	200	Neutral	Ghosts of Saltmarsh
Lesser Star Spawn Emissary	Mountain, Shadowfell, Swamp, Urban	Aberration	Star Spawn	Medium	241	19	22,000		Van Richten's Guide to Ravenloft
Swarm of Spiders	Desert, Forest, Grassland, Hill, Swamp, Underdark, Underground, Urban	Swarm	Beast, Insect, Spider	Medium	22	1/2	100	Unaligned	SRD5, MM5
Adult Topaz Dragon	Coastal, Swamp	Dragon	Gem Dragon, Topaz Dragon	Huge	210	13	10,000	Chaotic Neutral	Fizban's Treasury of Dragons
Charm	Feywild, Forest, Swamp, Underdark, Urban	Fey	Darkling, Darkling Elder	Medium	27	2, 1/2	450, 100	Chaotic Neutral	The Wild Beyond the Witchlight
Yuan-ti Abomination	Desert, Forest, Swamp	Monstrosity	Shapechanger, Yuan-ti	Large	127	7	2,900	Neutral Evil	Monster Manual (5e)
Anvilwrought Raptor	Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground, Underwater, Urban	Construct	Anvilwrought	Tiny	18	1/2	100	Unaligned	Mythic Odysseys of Theros
Common Enkki	Arctic, Coastal, Desert, Feywild, Forest, Grassland, Hill, Mountain, Shadowfell, Swamp, Underdark, Underground	Fey	Enkki	Small	6	1/4	50	Chaotic Neutral	Rlyehable
Vegepygmy Common	Forest, Swamp, Underground	Plant	Fungus, Vegepygmy	Small	9	1/4	50	Neutral	VGtM, MotM
Corpse Flower	Forest, Swamp, Urban	Plant		Large	127	8	3,900	Chaotic Evil	MToF, MotM, Varied
Giant Frog	Forest, Swamp	Beast	Frog	Medium	18	1/4	50	Unaligned	SRD-CC v5.1, SRD-OGL v5.1
Hadrosaurus	Grassland, Swamp	Beast	Dinosaur	Large	19	1/4	50	Unaligned	Varied, VGtM, MotM
Mud Mephit	Swamp	Elemental	Mephit	Small	27	1/4	50	Neutral Evil	Monster Manual (5e)
Atomie	Feywild, Forest, Swamp	Fey	Sprite	Tiny	4	1/4	50	Chaotic Neutral	Rlyehable
Bodak	Swamp, Underdark, Urban	Undead	Bodak	Medium	58	6	2,300	Chaotic Evil	VGtM, MotM
Shadow Mastiff	Forest, Hill, Shadowfell, Swamp	Monstrosity	Shadow Mastiff	Medium	33	2	450	Neutral Evil	Volo's Guide to Monsters
Giant Spider	Desert, Forest, Swamp, Underdark, Underground, Urban	Beast	Spider	Large	26	1	200	Unaligned	SRD-CC v5.1, SRD-OGL v5.1
Dracohydra	Coastal, Swamp	Monstrosity		Huge	218	11	7,200	Chaotic Evil	Fizban's Treasury of Dragons
Giant Dragonfly	Coastal, Swamp	Beast	Insect	Large	22	1/2	100	Unaligned	The Wild Beyond the Witchlight
Vegepygmy Chief	Underground, Forest, Swamp	Plant	Vegepygmy, Fungus	Small	33	2	450	Neutral	Volo's Guide to Monsters
Anhkolox	Arctic, Coastal, Forest, Grassland, Hill, Mountain, Swamp	Undead		Huge	157	9	5,000	Neutral Evil	Dragonlance Shadow of the Dragon Queen
Ancient Vicious Drake	Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground	Dragon	Drake, Vicious Drake	Gargantuan	396	22	41,000	Chaotic Neutral	Rlyehable
Snapper Saw	Forest, Swamp	Plant	Horrid Plant	Large	42	4	1,100	Unaligned	Quests from the Infinite Staircase
Adult Black Dragon	Swamp	Dragon	Chromatic Dragon, Black Dragon	Huge	195	14	11,500	Chaotic Evil	SRD-CC v5.1, SRD-OGL v5.1
Lizard	Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground, Urban	Beast	Lizard	Tiny	2	0	10	Unaligned	SRD-CC v5.1, SRD-OGL v5.1
Trepsin	Arctic, Forest, Hill, Mountain, Swamp, Underdark, Underground	Giant	Troll, Four-Armed Troll	Large	84	6	2,300	Chaotic Evil	Hoard of the Dragon Queen
Green Hag	Forest, Hill, Swamp, Feywild	Fey	Hag, Green Hag	Medium	82	3	700	Neutral Evil	SRD-CC v5.1, SRD-OGL v5.1
Orc Hand of Yurtrus	Arctic, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground	Humanoid	Orc	Medium	30	2	450	Chaotic Evil	Volo's Guide to Monsters
Nagpa	Coastal, Desert, Forest, Swamp, Urban	Humanoid	Nagpa	Medium	187	17	18,000	Neutral Evil	Mordenkainen's Tome of Foes
Constrictor Snake	Desert, Forest, Swamp, Underwater	Beast	Snake	Large	13	1/4	50	Unaligned	SRD-CC v5.1, SRD-OGL v5.1
Bullywug Royal (5e)/Dunwater	Swamp	Humanoid	Bullywug, Bullywug Royal	Medium	52	3	700	Neutral Evil	Ghosts of Saltmarsh
Flying Monkey Aerialist	Feywild, Forest, Shadowfell, Swamp	Beast	Monkey, Flying Monkey	Small	5	1/8	25	Unaligned	Rlyehable
Sword Wraith Commander	Grassland, Swamp	Undead	Sword Wraith	Medium	127	8	3,900	Lawful Evil	Mordenkainen's Tome of Foes
Lizardfolk	Forest, Swamp	Overview	Humanoid, Lizardfolk						SRD5, MM5, MotM, VGtM
Drake	Arctic, Desert, Forest, Mountain, Swamp, Underdark, Underground, Urban	Overview	Dragon, Drake						FToD, HotDQ, MotM, VGtM
Duke Ickrind	Feywild, Swamp	Humanoid	Bullywug	Medium	11	1/4	50	Neutral	The Wild Beyond the Witchlight
Yuan-ti Pureblood	Desert, Forest, Swamp, Urban	Humanoid	Yuan-ti	Medium	40	1	200	Neutral Evil	Monster Manual (5e)
Klarg	Feywild, Forest, Hill, Swamp	Fey		Huge	92	7	2,900	Chaotic Neutral	Rlyehable
Mud Elemental	Coastal, Swamp, Underwater	Elemental	Mud Elemental	Large	114	5	1,800	Neutral	Quests from the Infinite Staircase
Groff	Swamp	Plant		Large	68	4	1,100	Unaligned	Strixhaven
Lizardfolk Subchief	Forest, Swamp	Humanoid	Lizardfolk, Lizardfolk Subchief	Medium	52	3	700	Neutral	Ghosts of Saltmarsh
Winged Kobold	Coastal, Desert, Forest, Hill, Mountain, Swamp, Underdark, Underground, Urban	Humanoid	Kobold	Small	7	1/4	50	Lawful Evil	Monster Manual (5e)
Raven	Hill, Swamp, Urban	Beast	Raven	Tiny	1	0	10	Unaligned	SRD-CC v5.1, SRD-OGL v5.1
Buckawn	Feywild, Forest, Swamp	Fey	Brownie	Small	3	1/8	25	Neutral	Rlyehable
Vyth	Forest, Swamp	Humanoid	Lizardfolk, Lizardfolk Scaleshield	Medium	32	1	200	Neutral	Ghosts of Saltmarsh
Greater Star Spawn Emissary	Mountain, Shadowfell, Swamp, Urban	Aberration	Star Spawn	Huge	289	21	33,000		Van Richten's Guide to Ravenloft
Swarm of Poisonous Snakes	Forest, Swamp	Swarm	Snake, Beast	Medium	36	2	450	Unaligned	SRD-CC v5.1, SRD-OGL v5.1
Ancient Topaz Dragon	Coastal, Swamp	Dragon	Gem Dragon, Topaz Dragon	Gargantuan	280	20	25,000	Chaotic Neutral	Fizban's Treasury of Dragons
Bavlorna Blightstraw	Feywild, Forest, Swamp, Urban	Fey	Hag	Medium	110	7	2,900	Neutral Evil	The Wild Beyond the Witchlight
Yuan-ti Malison (5e)/Type 1	Desert, Forest, Swamp	Monstrosity	Shapechanger, Yuan-ti	Medium	66	3	700	Neutral Evil	Monster Manual (5e)
Aranea	Forest, Swamp, Underground	Monstrosity	Shapechanger	Medium	32	2	450	Neutral Evil	Rlyehable
Enkki Sorcerer	Arctic, Coastal, Desert, Feywild, Forest, Grassland, Hill, Mountain, Shadowfell, Swamp, Underdark, Underground	Fey	Enkki	Small	31	6	2,300	Chaotic Neutral	Rlyehable
Darkling	Forest, Swamp, Underdark, Urban, Feywild	Fey	Darkling	Small	13	1/2	100	Chaotic Neutral	VGtM, MotM, varied, TWBtW
Wight	Desert, Swamp, Underdark, Underground, Urban	Undead	Wight	Medium	45	3	700	Neutral Evil	SRD-CC v5.1, SRD-OGL v5.1
Kobold	Coastal, Desert, Forest, Hill, Mountain, Swamp, Underdark, Urban, Underground	Humanoid	Kobold	Small	5	1/8	25	Lawful Evil	SRD-CC v5.1, SRD-OGL v5.1
Orc Eye of Gruumsh	Arctic, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground	Humanoid	Orc, Cleric	Medium	45	2	450	Chaotic Evil	Monster Manual (5e)
Bal-Oon	Coastal, Desert, Forest, Swamp	Monstrosity		Small	7	1/4	50	Unaligned	Rlyehable
Gulpa'Gor	Swamp	Humanoid	Bullywug, Bullywug Royal	Medium	52	3	700	Neutral Evil	Ghosts of Saltmarsh
Shadow Mastiff Alpha	Forest, Hill, Shadowfell, Swamp	Monstrosity	Shadow Mastiff	Medium	49	2	450	Neutral Evil	Volo's Guide to Monsters
Stirge	Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground, Urban	Beast		Tiny	2	1/8	25	Unaligned	SRD-CC v5.1, SRD-OGL v5.1
Black Dragon	Swamp	Overview	Dragon, Chromatic Dragon, Black Dragon						Varied
Giant Snail	Forest, Grassland, Swamp	Beast	Snail	Large	22	1/4	50	Unaligned	The Wild Beyond the Witchlight
Venom Troll	Forest, Underdark, Underground, Arctic, Hill, Mountain, Swamp	Giant	Troll	Large	94	7	2,900	Chaotic Evil	Mordenkainen's Tome of Foes
Giant Ant	Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground	Beast	Ant, Giant Ant	Large	52	2	450	Unaligned	"Varied"
Young Vicious Drake	Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground	Dragon	Drake, Vicious Drake	Large	152	9	5,000	Chaotic Neutral	Rlyehable
Froghemoth	Swamp, Underdark	Overview	Monstrosity, Froghemoth						Volo's Guide to Monsters
Adult Oblex	Swamp, Underdark, Urban	Ooze	Oblex	Medium	75	5	1,800	Lawful Evil	Mordenkainen's Tome of Foes
Ancient Black Dragon	Swamp	Dragon	Chromatic Dragon, Black Dragon	Gargantuan	367	21	33,000	Chaotic Evil	SRD-CC v5.1, SRD-OGL v5.1
Lizardfolk Commoner	Forest, Swamp	Humanoid	Lizardfolk	Medium	16	1/4	50	Neutral	Ghosts of Saltmarsh
Drizlash Ghast	Shadowfell, Swamp, Underdark, Underground, Urban	Undead	Ghoul, Ghast	Medium	36	2	450	Chaotic Evil	CoS, SRD5
Hydra	Swamp	Monstrosity	Hydra	Huge	172	8	3,900	Unaligned	SRD-CC v5.1, SRD-OGL v5.1
Orc Nurtured One of Yurtrus	Arctic, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground	Humanoid	Orc	Medium	30	1/2	100	Chaotic Evil	Volo's Guide to Monsters
Nightwalker	Arctic, Desert, Swamp	Undead		Huge	297	20	25,000	Chaotic Evil	Mordenkainen's Tome of Foes
Giant Constrictor Snake	Desert, Forest, Swamp, Underdark, Underground, Underwater	Beast	Snake	Huge	60	2	450	Unaligned	SRD-CC v5.1, SRD-OGL v5.1
Crag Cat	Arctic, Coastal, Desert, Grassland, Hill, Mountain, Swamp	Beast		Large	34	1	200	Unaligned	Storm King's Thunder
Flying Monkey	Feywild, Forest, Shadowfell, Swamp	Beast	Monkey, Flying Monkey	Small	3	0	10	Unaligned	Tomb of Annihilation
Sword Wraith Warrior	Grassland, Swamp	Undead	Sword Wraith	Medium	45	3	700	Lawful Evil	Mordenkainen's Tome of Foes
Orc	Arctic, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground	Overview	Humanoid, Orc						SRD5, MM5e, VGtM
Ambush Drake	Forest, Hill, Mountain, Swamp, Underground, Urban	Dragon	Drake	Medium	22	1/2	100	Unaligned	Hoard of the Dragon Queen
Dumphrey Frogart	Feywild, Swamp	Humanoid	Bullywug, Bullywug Knight	Medium	66	3	700	Lawful Good	The Wild Beyond the Witchlight
Bullywug Common	Swamp	Humanoid	Bullywug	Medium	11	1/4	50	Neutral Evil	Monster Manual (5e)
Kobold	Coastal, Desert, Forest, Hill, Mountain, Swamp, Underdark, Underground, Urban	Overview	Humanoid, Kobold						SRD5, MM5, MotM, VGtM
Froghemoth Adult	Swamp, Underdark	Monstrosity	Froghemoth	Huge		10	5,900	Unaligned	VGtM, MotM
Hydroloth	Costal, Swamp, Underwater	Fiend	Yugoloth	Medium	135	9	5,000	Neutral Evil	Mordenkainen's Tome of Foes
Mist Walker	Feywild, Forest, Swamp, Grassland	Fey	Giant	Large	110	6	2,300	Chaotic Neutral	Rlyehable
Lost Sorrowsworn	Shadowfell, Arctic, Desert, Forest, Mountain, Swamp, Underdark, Urban	Monstrosity	Sorrowsworn	Medium	78	7	2,900	Neutral Evil	Mordenkainen's Tome of Foes
Swarm of Ravens	Forest, Hill, Swamp, Urban	Swarm	Raven, Beast	Medium	24	1/4	50	Unaligned	SRD-CC v5.1, SRD-OGL v5.1
Bullywug Croaker	Swamp	Humanoid	Bullywug, Bullywug Croaker	Medium	33	2	450	Neutral Evil	Ghosts of Saltmarsh
Ihrtos	Forest, Swamp	Humanoid	Lizardfolk, Lizardfolk Subchief	Medium	52	3	700	Neutral	Ghosts of Saltmarsh
Star Spawn Grue	Mountain, Swamp	Aberration	Star Spawn	Small	17	1/4	50	Neutral Evil	Mordenkainen's Tome of Foes
Giant Toad	Coastal, Desert, Forest, Swamp, Underdark, Underground	Beast	Frog, Giant Toad	Large	39	1	200	Unaligned	SRD-CC v5.1, SRD-OGL v5.1
Topaz Dragon Wyrmling	Coastal, Swamp	Dragon	Gem Dragon, Topaz Dragon	Medium	33	2	450	Chaotic Neutral	Fizban's Treasury of Dragons
Endelyn Moongrave	Feywild, Forest, Swamp, Urban	Fey	Hag	Medium	114	6	2,300	Neutral Evil	The Wild Beyond the Witchlight
Yuan-ti Malison (5e)/Type 2	Desert, Forest, Swamp	Monstrosity	Shapechanger, Yuan-ti	Medium	66	3	700	Neutral Evil	Monster Manual (5e)
Asher	Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Shadowfell, Swamp, Underground	Undead		Medium	58	7	2,900	Neutral Evil	Rlyehable
Giant Fly	Urban, Grassland, Swamp	Beast	Insect	Large	19	0	0	Unaligned	SRD-CC v5.1, SRD-OGL v5.1
Vegepygmy	Forest, Swamp, Underground	Overview	Plant, Fungus, Vegepygmy						VGtM, MotM, QftIS
Darkling Elder	Forest, Swamp, Underdark, Urban	Fey	Darkling, Darkling Elder	Medium	27	2	450	Chaotic Neutral	MotM, VGtM, Varied, TWBtW
Troll	Forest, Underdark, Underground, Arctic, Hill, Mountain, Swamp	Giant	Troll	Large	84	5	1,800	Chaotic Evil	SRD-CC v5.1, SRD-OGL v5.1
Kobold Alchemist	Coastal, Desert, Forest, Hill, Mountain, Swamp, Underdark, Underground, Urban	Humanoid	Kobold	Small	44	2	450	Lawful Neutral	"Varied"
Rat	Swamp, Underground, Urban	Beast	Rat	Tiny	1	0	10	Unaligned	SRD-CC v5.1, SRD-OGL v5.1
Fae Badger	Coastal, Feywild, Forest, Grassland, Swamp	Beast	Badger, Fey, Fae Beast	Tiny	3	0	10	Unaligned	Rlyehable
Arrp	Swamp	Humanoid	Bullywug, Bullywug Croaker	Medium	33	2	450	Neutral Evil	Ghosts of Saltmarsh
Skulk	Coastal, Forest, Shadowfell, Swamp, Underdark, Underground, Urban	Humanoid		Medium	18	1/2	100	Chaotic Neutral	Mordenkainen's Tome of Foes
Swarm of Insects	Desert, Forest, Grassland, Hill, Swamp, Underdark, Underground, Urban	Swarm	Insect, Beast	Medium	22	1/2	100	Unaligned	SRD-CC v5.1, SRD-OGL v5.1
Black Dragon Wyrmling	Swamp	Dragon	Chromatic Dragon, Black Dragon	Medium	33	2	450	Chaotic Evil	SRD-CC v5.1, SRD-OGL v5.1
Swarm of Wasps	Desert, Forest, Grassland, Hill, Swamp, Underdark, Underground, Urban	Swarm	Beast, Insect, Wasp	Medium	22	1/2	100	Unaligned	SRD5, MM5
Warlock of the Archfey	Arctic, Forest, Mountain, Swamp, Urban	Humanoid	any race	Medium	49	4	1,100	any alignment	Volo's Guide to Monsters
Giant Ant Queen	Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground	Beast	Ant, Giant Ant	Large	85	4	1,100	Unaligned	"Varied"
Vicious Drake Wyrmling	Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground	Dragon	Drake, Vicious Drake	Medium	52	3	700	Chaotic Neutral	Rlyehable
Froghemouth Elder	Swamp, Underdark	Monstrosity	Froghemoth	Huge	207	15	13,000	Unaligned	Quests from the Infinite Staircase
Allip	Swamp, Urban	Undead		Medium	40	5	1,800	Neutral Evil	Varied
Young Black Dragon	Swamp	Dragon	Chromatic Dragon, Black Dragon	Large	127	7	2,900	Chaotic Evil	SRD-CC v5.1, SRD-OGL v5.1
Lizardfolk King/Queen	Forest, Swamp	Humanoid	Lizardfolk, Lizardfolk King/Queen	Medium	78	4	1,100	Chaotic Evil	Monster Manual (5e)
Brackish Trudge	Swamp	Plant	Fungus	Large	68	3	700	Unaligned	Strixhaven
Giant Lizard	Coastal, Desert, Forest, Swamp, Underdark, Underground	Beast	Lizard	Large	19	1/4	50	Unaligned	SRD-CC v5.1, SRD-OGL v5.1
Orc Red Fang of Shargaas	Arctic, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground	Humanoid	Orc	Medium	52	3	700	Chaotic Evil	Volo's Guide to Monsters
Oblex Spawn	Swamp, Underdark, Underground, Urban	Ooze	Oblex	Tiny	18	1/4	50	Lawful Evil	Mordenkainen's Tome of Foes
Poisonous Snake	Coastal, Desert, Forest, Grassland, Hill, Swamp	Beast	Snake	Tiny	2	1/8	25	Unaligned	SRD-CC v5.1, SRD-OGL v5.1
Centipede	Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground, Urban	Beast	Insect, Centipede	Tiny	2	0	10	Unaligned	Rlyehable
Amidor	Forest, Grassland, Hill, Swamp	Plant	Dandelion	Small	38	1/2	100	Neutral Good	The Wild Beyond the Witchlight
Thorny	Forest, Swamp, Underground	Plant	Vegepygmy, Thorny	Medium	27	1	200	Neutral	VGtM, MotM
Will-o'-Wisp	Forest, Swamp, Urban	Undead		Tiny	22	2	450	Chaotic Evil	SRD-CC v5.1, SRD-OGL v5.1
Guard Drake	Arctic, Desert, Forest, Mountain, Swamp, Underdark, Underground, Urban	Overview	Dragon, Drake, Guard Drake						VGtM, MotM
Horrid Plant	Forest, Swamp	Overview	Plant, Horrid Plant						Quests from the Infinite Staircase
Crocodile	Swamp, Urban, Coastal	Beast	Crocodile	Large	19	1/2	100	Unaligned	SRD-CC v5.1, SRD-OGL v5.1
Ktip	Feywild, Forest, Grassland, Hill, Swamp	Fey		Tiny	3	1/8	25	Chaotic Neutral	Rlyehable
Psycada	Feywild, Forest, Shadowfell, Swamp, Underdark	Overview	Monstrosity, Insect, Psycada						Rlyehable
Oblex	Swamp, Underdark, Urban	Overview	Ooze, Oblex						Mordenkainen's Tome of Foes
Maurezhi	Swamp, Urban	Fiend	Demon	Medium	88	7	2,900	Chaotic Evil	Monsters of the Multiverse
Revenant (5e)/Monster	Arctic, Desert, Forest, Hill, Swamp, Urban	Undead	Revenant	Medium	136	5	1,800	Neutral	Monster Manual (5e)
Bullywug Knight	Swamp	Humanoid	Bullywug, Bullywug Knight	Medium	66	3	700	Lawful Good	The Wild Beyond the Witchlight
Thousand Teeth	Swamp	Monstrosity	Crocodile, Legendary Crocodile	Large	93	6	2,300	Neutral Evil	Ghosts of Saltmarsh
Star Spawn Hulk	Mountain, Swamp, Urban	Aberration	Star Spawn	Large	16	10	5,900	Chaotic Evil	Mordenkainen's Tome of Foes
Tribal Warrior	Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground	Humanoid	Any Race	Medium	11	1/8	25	Any Alignment	SRD-CC v5.1, SRD-OGL v5.1
Young Topaz Dragon	Coastal, Swamp	Dragon	Gem Dragon, Topaz Dragon	Large	127	7	2,900	Chaotic Neutral	Fizban's Treasury of Dragons
Skabatha Nightshade	Feywild, Forest, Swamp, Urban	Fey	Hag	Medium	150	8, 6	3,900, 2,300	Neutral Evil	The Wild Beyond the Witchlight
Yuan-ti Malison (5e)/Type 3	Desert, Forest, Swamp	Monstrosity	Shapechanger, Yuan-ti	Medium	66	3	700	Neutral Evil	Monster Manual (5e)
Frog	Coastal, Forest, Swamp	Beast	Frog	Tiny	1	0	0	Unaligned	SRD-CC v5.1, SRD-OGL v5.1
Vegepygmy Scavenger	Forest, Swamp, Underground	Plant	Fungus, Vegepygmy	Small	13	1/4	50	Neutral	Quests from the Infinite Staircase
Dimetrodon	Coastal, Swamp	Beast	Dinosaur	Medium	19	1/4	50	Unaligned	Varied, VGtM, MotM
Orc	Arctic, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground	Humanoid	Orc	Medium	15	1/2	100	Chaotic Evil	SRD-CC v5.1, SRD-OGL v5.1
Kobold Chieftain	Coastal, Desert, Forest, Hill, Mountain, Swamp, Underdark, Urban, Underground	Humanoid	Kobold	Small	82	4	1,100	Lawful Evil	"Varied"
Swarm of Rats	Swamp, Underground, Urban	Swarm	Rat, Beast	Medium	24	1/4	50	Unaligned	SRD-CC v5.1, SRD-OGL v5.1
Fae Rat	Feywild, Swamp, Underground, Urban	Beast	Fey, Rat, Fae Beast	Tiny	1	0	10	Unaligned	Rlyehable
Sauriv	Coastal, Forest, Swamp, Urban	Humanoid	Lizardfolk	Medium	9	1/8	25	Lawful Neutral	GOS, SRD5
Skull Lord	Desert, Shadowfell, Swamp	Undead		Medium	105	15	13,000	Lawful Evil	Mordenkainen's Tome of Foes
Swarm of Beetles	Desert, Forest, Grassland, Hill, Swamp, Underdark, Underground, Urban	Swarm	Beast, Insect, Beetle	Medium	22	1/2	100	Unaligned	SRD5, MM5
Gem Greatwyrm	Arctic, Coastal, Desert, Feywild, Forest, Grassland, Hill, Mountain, Shadowfell, Swamp, Underdark, Underground, Underwater	Dragon	Gem Dragon	Gargantuan	507	26	90,000	Neutral	Fizban's Treasury of Dragons
Bauble	Feywild, Forest, Swamp, Underdark, Urban	Fey	Darkling	Small	13	1/2	100	Chaotic Neutral	The Wild Beyond the Witchlight
Wastrilith	Coastal, Swamp, Underdark, Underground, Underwater	Fiend	Demon	Large	157	13	10,000	Chaotic Evil	Monsters of the Multiverse
Giant Ant Soldier	Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground	Beast	Ant, Giant Ant	Large	73	3	700	Unaligned	Rlyehable
Empyrean	Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground	Celestial	Titan	Huge	313	23	50,000	Varied	Monster Manual (5e)
Froghemoth Juvenile	Swamp, Underdark	Monstrosity	Froghemoth	Large	64	6	2,300	Unaligned	Rlyehable
Archdruid VGtM	Forest, Mountain, Swamp, Underwater	Humanoid	Any Race	Medium	132	12	8,400	Any Alignment	Volo's Guide to Monsters
Druid	Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground	Humanoid	Any Race, Druid	Medium	27	2	450	Any Alignment	SRD-CC v5.1, SRD-OGL v5.1
Lizardfolk Liberator	Forest, Swamp	Humanoid	Lizardfolk	Medium	105	5	1,800	Neutral	Rlyehable
Guard Drake Common	Arctic, Desert, Forest, Mountain, Swamp, Underdark, Urban	Dragon	Drake, Guard Drake	Medium	52	2	450	Unaligned	HotDQ, VGtM, MotM
Lizardfolk	Forest, Swamp	Humanoid	Lizardfolk	Medium	22	1/2	100	Neutral	SRD-CC v5.1, SRD-OGL v5.1
Assassin Vine	Forest, Swamp	Plant	Assassin Vine	Large	85	3	700	Unaligned	Ghosts of Saltmarsh
Orc War Chief	Arctic, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground	Humanoid	Orc	Medium	93	4	1,100	Chaotic Evil	Monster Manual (5e)
Redcap	Forest, Hill, Swamp	Fey		Small	45	3	700	Chaotic Evil	Volo's Guide to Monsters
Giant Poisonous Snake	Desert, Forest, Grassland, Swamp, Underdark, Underground, Urban	Beast	Snake	Medium	11	1/4	50	Unaligned	SRD-CC v5.1, SRD-OGL v5.1
Dread Centipede	Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground	Beast	Centipede	Large	124	8	3,900	Unaligned	Rlyehable
Awakened Toadstool	Forest, Grassland, Swamp, Feywild	Plant	Awakened Plant	Tiny	1	0	0	Unaligned	The Wild Beyond the Witchlight
Vampiric Mist	Arctic, Coastal, Forest, Grassland, Mountain, Swamp, Underdark, Underground, Urban	Undead		Medium	30	3	700	Chaotic Evil	Mordenkainen's Tome of Foes
Amphisbaena	Desert, Grassland, Swamp	Monstrosity		Medium	11	1/2	100	Unaligned	Varied, GoS, MOoT
Vicious Drake	Arctic, Coastal, Desert, Feywild, Forest, Grassland, Hill, Mountain, Shadowfell, Swamp, Underdark, Underground	Overview	Dragon, Drake, Vicious Drake						Rlyehable
Dew Drinker	Forest, Swamp	Plant	Horrid Plant	Large	42	4	1,100	Unaligned	Quests from the Infinite Staircase
Giant Crocodile	Swamp	Beast	Crocodile	Huge	85	4	1,100	Unaligned	SRD-CC v5.1, SRD-OGL v5.1
Monkey	Forest, Swamp	Overview	Beast, Monkey						Varied
Swamp Spirit	Feywild, Swamp	Fey		Small	27	1/4	50	Neutral Evil	Journeys through the Radiant Citadel
Orc Blade of Ilneval	Arctic, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground	Humanoid	Orc	Medium	60	4	1,100	Chaotic Evil	Volo's Guide to Monsters
Meazel	Desert, Forest, Grassland, Hill, Mountain, Shadowfell, Swamp, Underdark, Underground, Urban	Humanoid		Medium	35	1	200	Neutral Evil	Mordenkainen's Tome of Foes
Scout	Desert, Arctic, Coastal, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground	Humanoid	Any Race, Scout	Medium	9	1/2	100	Any Alignment	SRD-CC v5.1, SRD-OGL v5.1
Bullywug Royal	Swamp	Overview	Humanoid, Bullywug, Bullywug Royal						TWBtW, GoS
Krell Grohlg	Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground	Humanoid	Half-Orc, Druid	Medium	27	2, 1/8	450, 25	Chaotic Evil	Varied
Star Spawn Seer	Mountain, Swamp, Urban	Aberration	Star Spawn	Medium	153	13	10,000	Neutral Evil	Mordenkainen's Tome of Foes
Revenant	Arctic, Desert, Forest, Hill, Swamp, Urban	Overview	Undead, Revenant						Monster Manual (5e)
Dragonnel	Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground, Urban	Overview	Dragon, Dragonnel						FToD, DLSotDQ, Varied
Bloody Toes	Forest, Hill, Swamp	Fey	Redcap	Small	45	3	700	Chaotic Evil	The Wild Beyond the Witchlight
Yuan-ti Malison (5e)/Type 4	Desert, Forest, Swamp	Monstrosity	Shapechanger, Yuan-ti	Medium	66	3	700	Neutral Evil	Volo's Guide to Monsters
Heavenly Sovereign Green Hag	Feywild, Forest, Hill, Swamp, Wildes	Fey	Hag	Medium	229	11	7,200	Neutral Evil	Venture Maidens Campaign Guide
Thorny Hunter	Forest, Swamp, Underdark, Underground	Plant	Vegepygmy, Thorny	Medium	27	2	450	Neutral	Quests from the Infinite Staircase
Elder Oblex	Swamp, Underdark, Urban	Ooze	Oblex	Huge	115	10	5,900	Lawful Evil	Mordenkainen's Tome of Foes
Ghast	Shadowfell, Swamp, Underdark, Underground, Urban	Undead	Ghoul, Ghast	Medium	36	2	450	Chaotic Evil	SRD-CC v5.1, SRD-OGL v5.1
Kobold Dragon-Blessed	Coastal, Desert, Forest, Hill, Mountain, Swamp, Underdark, Underground, Urban	Humanoid	Kobold	Small	9	1/2	100	Lawful Evil	Rlyehable
Giant Rat	Forest, Swamp, Underdark, Underground, Urban	Beast	Rat, Giant Rat	Small	7	1/8	25	Unaligned	SRD-CC v5.1, SRD-OGL v5.1
Boggart	Feywild, Forest, Grassland, Swamp	Fey	Shapechanger	Small	21	1	200	Chaotic Neutral	Rlyehable
Othokent	Forest, Swamp	Humanoid	Lizardfolk, Lizardfolk King/Queen	Medium	78	4	1,100	Lawful Neutral	GoS, MM5
Spirit Troll	Forest, Underdark, Underground, Arctic, Hill, Mountain, Swamp	Giant	Troll	Large	97	11	7,200	Chaotic Evil	Mordenkainen's Tome of Foes
Swarm of Centipedes	Desert, Forest, Grassland, Hill, Swamp, Underdark, Underground, Urban	Swarm	Beast, Insect, Centipede	Medium	22	1/2	100	Unaligned	SRD5, MM5
Topaz Dragon	Coastal, Swamp	Overview	Dragon, Gem Dragon, Topaz Dragon						Fizban's Treasury of Dragons
Trinket Darkling	Feywild, Forest, Swamp, Underdark, Urban	Fey	Darkling	Small	13	1/2	100	Chaotic Neutral	The Wild Beyond the Witchlight
Wretched Sorrowsworn	Swamp, Underdark, Underground, Urban, Shadowfell	Monstrosity	Sorrowsworn	Small	10	1/4	50	Neutral Evil	Mordenkainen's Tome of Foes
Burnished Hart	Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground	Construct	Anvilwrought	Medium	45	2	450	Unaligned	Mythic Odysseys of Theros
Enkki	Arctic, Coastal, Desert, Feywild, Forest, Grassland, Hill, Mountain, Shadowfell, Swamp, Underdark, Underground	Overview	Fey, Enkki						Rlyehable
Vegepygmy Moldmaker	Forest, Swamp, Underground	Plant	Fungus, Vegepygmy	Small	44	3	700	Neutral	Quests from the Infinite Staircase
Archdruid MotM	Forest, Mountain, Swamp, Underwater	Humanoid	Any Race, Druid	Medium	154	12	8,400	Any Alignment	Monsters of the Multiverse
Water Elemental	Coastal, Swamp, Underwater	Elemental	Water Elemental	Large	114	5	1,800	Neutral	SRD-CC v5.1, SRD-OGL v5.1
Lizardfolk Render	Forest, Swamp	Humanoid	Lizardfolk	Large	52	3	700	Neutral	Ghosts of Saltmarsh
Black Guard Drake	Swamp, Urban	Dragon	Drake, Guard Drake	Medium	52	2	450	Unaligned	VGtM, MotM
Lizardfolk Shaman	Forest, Swamp	Humanoid	Lizardfolk, Druid	Medium	27	2	450	Neutral	Monster Manual (5e)
Jade Assassin Vine	Forest, Swamp	Plant	Assassin Vine	Large	30	2	450	Neutral	Rlyehable
Pest Mascot	Swamp, Urban	Monstrosity		Tiny	22	1/4	50	Unaligned	Strixhaven
Rot Troll	Forest, Underdark, Underground, Arctic, Desert, Hill, Mountain, Shadowfell, Swamp	Giant	Troll	Large	138	9	5,000	Chaotic Evil	Mordenkainen's Tome of Foes
Spider	Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground, Urban	Beast	Spider	Tiny	1	0	10	Unaligned	SRD-CC v5.1, SRD-OGL v5.1
Decapus	Forest, Swamp	Monstrosity	Decapus	Large	75	4	1,100	Unaligned	Tortle Package
Butterfly	Forest, Grassland, Hill, Swamp	Beast	Insect, Butterfly	Tiny	1	0	10	Unaligned	The Wild Beyond the Witchlight
Vargouille	Desert, Swamp, Underdark, Underground	Fiend		Tiny	13	1	200	Chaotic Evil	Volo's Guide to Monsters
Deva	Arctic, Coastal, Desert, Feywild, Forest, Grassland, Hill, Mountain, Shadowfell, Swamp, Underground, Underwater	Celestial	Angel	Medium	136	10	5,900	Lawful Good	SRD-CC v5.1, SRD-OGL v5.1
Adult Vicious Drake	Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground	Dragon	Drake, Vicious Drake	Huge	225	15	13,000	Chaotic Neutral	Rlyehable
Purple Blossom	Forest, Swamp	Plant	Horrid Plant	Large	42	4	1,100	Unaligned	Quests from the Infinite Staircase
Legendary Crocodile	Swamp	Monstrosity	Crocodile, Legendary Crocodile	Large	93	6	2,300	Neutral Evil	Ghosts of Saltmarsh
Monkey	Forest, Swamp	Beast	Monkey	Small	2	1/8	25	Unaligned	Rlyehable
Four-Armed Troll	Arctic, Forest, Hill, Mountain, Swamp, Underdark, Underground	Giant	Troll, Four-Armed Troll	Large	84	6	2,300	Chaotic Evil	Hoard of the Dragon Queen