Habitat (5e)/Swamp

 5th edition Varied 
See Sources and Notes

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

Swamp Creatures

(199 official and unofficial monsters)

Name	Habitat	Type	Subtype	Size	HP	CR	XP	Alignment	Source
Bullywug Croaker	Swamp	Humanoid	Bullywug, Bullywug Croaker	Medium	33	2	450	Neutral Evil	Ghosts of Saltmarsh
Lost Sorrowsworn	Shadowfell, Arctic, Desert, Forest, Mountain, Swamp, Underdark, Urban	Monstrosity	Sorrowsworn	Medium	78	7	2,900	Neutral Evil	Mordenkainen's Tome of Foes
Vyth	Forest, Swamp	Humanoid	Lizardfolk, Lizardfolk Scaleshield	Medium	32	1	200	Neutral	Ghosts of Saltmarsh
Raven	Hill, Swamp, Urban	Beast	Raven	Tiny	1	0	10	Unaligned	SRD5
Topaz Dragon Wyrmling	Coastal, Swamp	Dragon	Gem Dragon, Topaz Dragon	Medium	33	2	450	Chaotic Neutral	Fizban's Treasury of Dragons
Star Spawn Grue	Mountain, Swamp	Aberration	Star Spawn	Small	17	1/4	50	Neutral Evil	Mordenkainen's Tome of Foes
Swarm of Wasps	Desert, Forest, Grassland, Hill, Swamp, Underdark, Underground, Urban	Swarm	Beast, Insect, Wasp	Medium	22	1/2	100	Unaligned	"Varied"
Giant Fly	Urban, Grassland, Swamp	Beast	Insect	Large	19	0	0	Unaligned	SRD5
Yuan-ti Malison (5e)/Type 1	Desert, Forest, Swamp	Monstrosity	Shapechanger, Yuan-ti	Medium	66	3	700	Neutral Evil	Monster Manual (5e)
Dimetrodon	Coastal, Swamp	Beast	Dinosaur	Medium	19	1/4	50	Unaligned	Varied, VGtM, MotM
Lizardfolk Subchief	Forest, Swamp	Humanoid	Lizardfolk, Lizardfolk Subchief	Medium	52	3	700	Neutral	Ghosts of Saltmarsh
Wight	Desert, Swamp, Underdark, Underground, Urban	Undead	Wight	Medium	45	3	700	Neutral Evil	SRD5
Fae Badger	Coastal, Feywild, Forest, Grassland, Swamp	Beast	Badger, Fey	Tiny	3	0	10	Unaligned	Rlyehable
Kobold Alchemist	Coastal, Desert, Forest, Hill, Mountain, Swamp, Underdark, Underground, Urban	Humanoid	Kobold	Small	44	2	450	Lawful Neutral	"Varied"
Gulpa'Gor	Swamp	Humanoid	Bullywug, Bullywug Royal	Medium	52	3	700	Neutral Evil	Ghosts of Saltmarsh
Orc Eye of Gruumsh	Arctic, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground	Humanoid	Orc, Cleric	Medium	45	2	450	Chaotic Evil	Monster Manual (5e)
Black Dragon Wyrmling	Swamp	Dragon	Chromatic Dragon, Black Dragon	Medium	33	2	450	Chaotic Evil	SRD5
Skulk	Coastal, Forest, Shadowfell, Swamp, Underdark, Underground, Urban	Humanoid		Medium	18	1/2	100	Chaotic Neutral	Mordenkainen's Tome of Foes
Stirge	Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground, Urban	Beast		Tiny	2	1/8	25	Unaligned	SRD5
Vicious Drake Wyrmling	Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground	Dragon	Drake, Vicious Drake	Medium	52	3	700	Chaotic Neutral	Rlyehable
Venom Troll	Forest, Underdark, Underground, Arctic, Hill, Mountain, Swamp	Giant	Troll	Large	94	7	2,900	Chaotic Evil	Mordenkainen's Tome of Foes
Anhkolox	Arctic, Coastal, Forest, Grassland, Hill, Mountain, Swamp	Undead		Huge	157	9	5,000	Neutral Evil	Dragonlance Shadow of the Dragon Queen
Archdruid VGtM	Forest, Mountain, Swamp, Underwater	Humanoid	Any Race	Medium	132	12	8,400	Any Alignment	Volo's Guide to Monsters
Lizardfolk Commoner	Forest, Swamp	Humanoid	Lizardfolk	Medium	16	1/4	50	Neutral	Ghosts of Saltmarsh
Ancient Black Dragon	Swamp	Dragon	Chromatic Dragon, Black Dragon	Gargantuan	367	21	33,000	Chaotic Evil	SRD5
Asher	Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Shadowfell, Swamp, Underground	Undead		Medium	58	7	2,900	Neutral Evil	Rlyehable
Brackish Trudge	Swamp	Plant	Fungus	Large	68	3	700	Unaligned	Strixhaven
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
Hydra	Swamp	Monstrosity	Hydra	Huge	172	8	3,900	Unaligned	SRD5
Centipede	Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground, Urban	Beast	Insect, Centipede	Tiny	2	0	10	Unaligned	Rlyehable
Oblex Spawn	Swamp, Underdark, Underground, Urban	Ooze	Oblex	Tiny	18	1/4	50	Lawful Evil	Mordenkainen's Tome of Foes
Giant Constrictor Snake	Desert, Forest, Swamp, Underdark, Underground, Underwater	Beast	Snake	Huge	60	2	450	Unaligned	SRD5
Guard Drake	Arctic, Desert, Forest, Mountain, Swamp, Underdark, Underground, Urban	Overview	Dragon, Drake, Guard Drake						VGtM, MotM
Thorny	Forest, Swamp, Underground	Plant	Vegepygmy	Medium	27	1	200	Neutral	Volo's Guide to Monsters
Lizardfolk	Forest, Swamp	Overview	Humanoid, Lizardfolk						SRD5, MM5, MotM, VGtM
Ktip	Feywild, Forest, Grassland, Hill, Swamp	Fey		Tiny	3	1/8	25	Chaotic Neutral	Rlyehable
Bullywug Common	Swamp	Humanoid	Bullywug	Medium	11	1/4	50	Neutral Evil	Monster Manual (5e)
Bullywug Knight	Swamp	Humanoid	Bullywug	Medium	66	3	700	Lawful Good	The Wild Beyond the Witchlight
Maurezhi	Swamp, Urban	Fiend	Demon	Medium	88	7	2,900	Chaotic Evil	Monsters of the Multiverse
Ihrtos	Forest, Swamp	Humanoid	Lizardfolk, Lizardfolk Subchief	Medium	52	3	700	Neutral	Ghosts of Saltmarsh
Swarm of Ravens	Forest, Hill, Swamp, Urban	Swarm	Raven, Beast	Medium	24	1/4	50	Unaligned	SRD5
Young Topaz Dragon	Coastal, Swamp	Dragon	Gem Dragon, Topaz Dragon	Large	127	7	2,900	Chaotic Neutral	Fizban's Treasury of Dragons
Star Spawn Hulk	Mountain, Swamp, Urban	Aberration	Star Spawn	Large	16	10	5,900	Chaotic Evil	Mordenkainen's Tome of Foes
Swarm of Poisonous Snakes	Forest, Swamp	Swarm	Snake, Beast	Medium	36	2	450	Unaligned	SRD5
Frog	Coastal, Forest, Swamp	Beast	Frog	Tiny	1	0	0	Unaligned	SRD5
Yuan-ti Malison (5e)/Type 2	Desert, Forest, Swamp	Monstrosity	Shapechanger, Yuan-ti	Medium	66	3	700	Neutral Evil	Monster Manual (5e)
Elder Oblex	Swamp, Underdark, Urban	Ooze	Oblex	Huge	115	10	5,900	Lawful Evil	Mordenkainen's Tome of Foes
Mist Walker	Feywild, Forest, Swamp, Grassland	Fey		Large	110	6	2,300	Chaotic Neutral	Rlyehable
Troll	Forest, Underdark, Underground, Arctic, Hill, Mountain, Swamp	Giant	Troll	Large	84	5	1,800	Chaotic Evil	SRD5
Fae Rat	Feywild, Swamp, Underground, Urban	Beast	Fey, Rat	Tiny	1	0	10	Unaligned	Rlyehable
Kobold Chieftain	Coastal, Desert, Forest, Hill, Mountain, Swamp, Underdark, Urban, Underground	Humanoid	Kobold	Small	82	4	1,100	Lawful Evil	"Varied"
Arrp	Swamp	Humanoid	Bullywug, Bullywug Croaker	Medium	33	2	450	Neutral Evil	Ghosts of Saltmarsh
Rat	Swamp, Underground, Urban	Beast	Rat	Tiny	1	0	10	Unaligned	SRD5
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
Skull Lord	Desert, Shadowfell, Swamp	Undead		Medium	105	15	13,000	Lawful Evil	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	SRD5
Empyrean	Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground	Celestial	Titan	Huge	313	23	50,000	Varied	Monster Manual (5e)
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	Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground	Beast	Ant, Giant Ant	Large	52	2	450	Unaligned	"Varied"
Archdruid MotM	Forest, Mountain, Swamp, Underwater	Humanoid	Any Race, Druid	Medium	154	12	8,400	Any Alignment	Monsters of the Multiverse
Lizardfolk King/Queen	Forest, Swamp	Humanoid	Lizardfolk, Lizardfolk King/Queen	Medium	78	4	1,100	Chaotic Evil	Monster Manual (5e)
Young Black Dragon	Swamp	Dragon	Chromatic Dragon, Black Dragon	Large	127	7	2,900	Chaotic Evil	SRD5
Assassin Vine	Forest, Swamp	Plant	Assassin Vine	Large	85	3	700	Unaligned	Ghosts of Saltmarsh
Guard Drake Common	Arctic, Desert, Forest, Mountain, Swamp, Underdark, Urban	Dragon	Drake, Guard Drake	Medium	52	2	450	Unaligned	HotDQ, VGtM, MotM
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
Giant Lizard	Coastal, Desert, Forest, Swamp, Underdark, Underground	Beast	Lizard	Large	19	1/4	50	Unaligned	SRD5
Dread Centipede	Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground	Beast	Centipede	Large	124	8	3,900	Unaligned	Rlyehable
Redcap	Forest, Hill, Swamp	Fey		Small	45	3	700	Chaotic Evil	Volo's Guide to Monsters
Poisonous Snake	Coastal, Desert, Forest, Grassland, Hill, Swamp	Beast	Snake	Tiny	2	1/8	25	Unaligned	SRD5
Vicious Drake	Arctic, Coastal, Desert, Feywild, Forest, Grassland, Hill, Mountain, Shadowfell, Swamp, Underdark, Underground	Overview	Dragon, Drake, Vicious Drake						Rlyehable
Vampiric Mist	Arctic, Coastal, Forest, Grassland, Mountain, Swamp, Underdark, Underground, Urban	Undead		Medium	30	3	700	Chaotic Evil	Mordenkainen's Tome of Foes
Orc	Arctic, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground	Overview	Humanoid, Orc						Varied
Flying Monkey	Feywild, Forest, Shadowfell, Swamp	Beast	Monkey	Small	5	1/8	25	Unaligned	Rlyehable
Crocodile	Swamp, Urban	Beast	Crocodile	Large	19	1/2	100	Unaligned	SRD5
Orc	Arctic, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground	Humanoid	Orc	Medium	15	1/2	100	Chaotic Evil	SRD5
Bullywug Royal	Swamp	Overview	Humanoid, Bullywug, Bullywug Royal						TWBtW, GoS
Meazel	Desert, Forest, Grassland, Hill, Mountain, Shadowfell, Swamp, Underdark, Underground, Urban	Humanoid		Medium	35	1	200	Neutral Evil	Mordenkainen's Tome of Foes
Thousand Teeth	Swamp	Monstrosity	Crocodile, Legendary Crocodile	Large	93	6	2,300	Neutral Evil	Ghosts of Saltmarsh
Revenant (5e)/Monster	Arctic, Desert, Forest, Hill, Swamp, Urban	Undead	Revenant	Medium	136	5	1,800	Neutral	Monster Manual (5e)
Dragonnel	Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground, Urban	Overview	Dragon, Dragonnel						FToD, DLSotDQ, Varied
Star Spawn Seer	Mountain, Swamp, Urban	Aberration	Star Spawn	Medium	153	13	10,000	Neutral Evil	Mordenkainen's Tome of Foes
Giant Toad	Coastal, Desert, Forest, Swamp, Underdark, Underground	Beast	Frog	Large	39	1	200	Unaligned	SRD5
Heavenly Sovereign Green Hag	Feywild, Forest, Hill, Swamp, Wildes	Fey	Hag	Medium	229	11	7,200	Neutral Evil	Venture Maidens Campaign Guide
Yuan-ti Malison (5e)/Type 3	Desert, Forest, Swamp	Monstrosity	Shapechanger, Yuan-ti	Medium	66	3	700	Neutral Evil	Monster Manual (5e)
Flail Snail	Forest, Swamp, Underdark	Elemental	Earth Elemental	Large	52	3	700	Unaligned	Varied, VGtM, MotM
Oblex	Swamp, Underdark, Urban	Overview	Ooze, Oblex						Mordenkainen's Tome of Foes
Boggart	Feywild, Forest, Grassland, Swamp	Fey	Shapechanger	Small	21	1	200	Chaotic Neutral	Rlyehable
Kobold Dragon-Blessed	Coastal, Desert, Forest, Hill, Mountain, Swamp, Underdark, Underground, Urban	Humanoid	Kobold	Small	9	1/2	100	Lawful Evil	Rlyehable
Sauriv	Coastal, Forest, Swamp, Urban	Humanoid	Lizardfolk	Medium	9	1/8	25	Lawful Neutral	"Varied"
Swarm of Rats	Swamp, Underground, Urban	Swarm	Rat, Beast	Medium	24	1/4	50	Unaligned	SRD5
Topaz Dragon	Coastal, Swamp	Overview	Dragon, Gem Dragon, Topaz Dragon						Fizban's Treasury of Dragons
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 Beetles	Desert, Forest, Grassland, Hill, Swamp, Underdark, Underground, Urban	Swarm	Beast, Insect, Beetle	Medium	22	1/2	100	Unaligned	"Varied"
Enkki	Arctic, Coastal, Desert, Feywild, Forest, Grassland, Hill, Mountain, Shadowfell, Swamp, Underdark, Underground	Overview	Fey, Enkki						Rlyehable
Wastrilith	Coastal, Swamp, Underdark, Underground, Underwater	Fiend	Demon	Large	157	13	10,000	Chaotic Evil	Monsters of the Multiverse
Giant Ant Queen	Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground	Beast	Ant, Giant Ant	Large	85	4	1,100	Unaligned	"Varied"
Corpse Flower	Forest, Swamp, Urban	Plant		Large	127	8	3,900	Chaotic Evil	MToF, MotM, Varied
Lizardfolk Liberator	Forest, Swamp	Humanoid	Lizardfolk	Medium	105	5	1,800	Neutral	Rlyehable
Druid	Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground	Humanoid	Any Race, Druid	Medium	27	2	450	Any Alignment	SRD5
Jade Assassin Vine	Forest, Swamp	Plant	Assassin Vine	Large	30	2	450	Neutral	Rlyehable
Black Guard Drake	Swamp, Urban	Dragon	Drake, Guard Drake	Medium	52	2	450	Unaligned	VGtM, MotM
Orc War Chief	Arctic, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground	Humanoid	Orc	Medium	93	4	1,100	Chaotic Evil	Monster Manual (5e)
Lizardfolk	Forest, Swamp	Humanoid	Lizardfolk	Medium	22	1/2	100	Neutral	SRD5
Decapus	Forest, Swamp	Monstrosity	Decapus	Large	75	4	1,100	Unaligned	Tortle Package
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
Giant Poisonous Snake	Desert, Forest, Grassland, Swamp, Underdark, Underground, Urban	Beast	Snake	Medium	11	1/4	50	Unaligned	SRD5
Adult Vicious Drake	Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground	Dragon	Drake, Vicious Drake	Huge	225	15	13,000	Chaotic Neutral	Rlyehable
Vargouille	Desert, Swamp, Underdark, Underground	Fiend		Tiny	13	1	200	Chaotic Evil	Volo's Guide to Monsters
Will-o'-Wisp	Forest, Swamp, Urban	Undead		Tiny	22	2	450	Chaotic Evil	SRD5
Monkey	Forest, Swamp	Overview	Beast, Monkey						"Varied"
Giant Crocodile	Swamp	Beast	Crocodile	Huge	85	4	1,100	Unaligned	SRD5
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
Ghast	Shadowfell, Swamp, Underdark, Underground, Urban	Undead	Ghoul	Medium	36	2	450	Chaotic Evil	SRD5
Bullywug Royal (5e)/Downfall	Feywild, Swamp	Humanoid	Bullywug, Bullywug Royal	Medium	65	3	700	Any Alignment	The Wild Beyond the Witchlight
Meenlock	Feywild, Forest, Swamp, Urban	Fey		Small	31	2	450	Neutral Evil	Volo's Guide to Monsters
Krell Grohlg	Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground	Humanoid	Half-Orc, Druid	Medium	27	1/8, 2	25, 450	Chaotic Evil	"Varied"
Scout	Desert, Arctic, Coastal, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground	Humanoid	Any Race	Medium	9	1/2	100	Any Alignment	SRD5
Dragonnel Common	Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground, Urban	Dragon	Dragonnel	Large	58	2	450	Neutral	Fizban's Treasury of Dragons
Swarm of Rot Grubs	Swamp, Underdark, Underground	Swarm	Beast	Medium	22	1/2	100	Unaligned	Volo's Guide to Monsters
Tribal Warrior	Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground	Humanoid	Any Race	Medium	11	1/8	25	Any Alignment	SRD5
Killmoulis	Arctic, Coastal, Desert, Feywild, Forest, Grassland, Hill, Mountain, Swamp, Underground, Urban	Fey		Tiny	7	0	10	Neutral	Mordenkainen's Fiendish Folio Volume 1
Yuan-ti Malison (5e)/Type 4	Desert, Forest, Swamp	Monstrosity	Shapechanger, Yuan-ti	Medium	66	3	700	Neutral Evil	Volo's Guide to Monsters
Froghemoth	Swamp, Underdark	Monstrosity		Huge	184	10	5,900	Unaligned	Volo's Guide to Monsters
Bramble	Feywild, Forest, Grassland, Swamp	Fey		Tiny	2	1/8	25	Neutral Evil	Rlyehable
Kobold Trapsmith	Coastal, Desert, Forest, Hill, Mountain, Swamp, Underdark, Underground, Urban	Humanoid	Kobold	Small	36	1	200	Lawful Neutral	"Varied"
Othokent	Forest, Swamp	Humanoid	Lizardfolk, Lizardfolk King/Queen	Medium	78	4	1,100	Lawful Neutral	GoS, MM5
Giant Rat	Forest, Swamp, Underdark, Underground, Urban	Beast	Rat	Small	7	1/8	25	Unaligned	SRD5
Adult Topaz Dragon	Coastal, Swamp	Dragon	Gem Dragon, Topaz Dragon	Huge	210	13	10,000	Chaotic Neutral	Fizban's Treasury of Dragons
Lesser Star Spawn Emissary	Mountain, Shadowfell, Swamp, Urban	Aberration	Star Spawn	Medium	241	19	22,000		Van Richten's Guide to Ravenloft
Swarm of Centipedes	Desert, Forest, Grassland, Hill, Swamp, Underdark, Underground, Urban	Swarm	Beast, Insect, Centipede	Medium	22	1/2	100	Unaligned	"Varied"
Common Enkki	Arctic, Coastal, Desert, Feywild, Forest, Grassland, Hill, Mountain, Shadowfell, Swamp, Underdark, Underground	Fey	Enkki	Small	6	1/4	50	Chaotic Neutral	Rlyehable
Wretched Sorrowsworn	Swamp, Underdark, Underground, Urban, Shadowfell	Monstrosity	Sorrowsworn	Small	10	1/4	50	Neutral Evil	Mordenkainen's Tome of Foes
Giant Ant Soldier	Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground	Beast	Ant, Giant Ant	Large	73	3	700	Unaligned	Rlyehable
Darkling	Forest, Swamp, Underdark, Urban	Fey	Darkling	Small	13	1/2	100	Chaotic Neutral	VGtM, MotM, Varied
Lizardfolk Render	Forest, Swamp	Humanoid	Lizardfolk	Large	52	3	700	Neutral	Ghosts of Saltmarsh
Water Elemental	Coastal, Swamp, Underwater	Elemental	Water Elemental	Large	114	5	1,800	Neutral	SRD5
Atomie	Feywild, Forest, Swamp	Fey	Sprite	Tiny	4	1/4	50	Chaotic Neutral	Rlyehable
Hadrosaurus	Grassland, Swamp	Beast	Dinosaur	Large	19	1/4	50	Unaligned	Varied, VGtM, MotM
Pest Mascot	Swamp, Urban	Monstrosity		Tiny	22	1/4	50	Unaligned	Strixhaven
Lizardfolk Shaman	Forest, Swamp	Humanoid	Lizardfolk, Druid	Medium	27	2	450	Neutral	Monster Manual (5e)
Dracohydra	Coastal, Swamp	Monstrosity		Huge	218	11	7,200	Chaotic Evil	Fizban's Treasury of Dragons
Shadow Mastiff	Forest, Hill, Shadowfell, Swamp	Monstrosity	Shadow Mastiff	Medium	33	2	450	Neutral Evil	Volo's Guide to Monsters
Spider	Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground, Urban	Beast	Spider	Tiny	1	0	10	Unaligned	SRD5
Ancient Vicious Drake	Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground	Dragon	Drake, Vicious Drake	Gargantuan	396	22	41,000	Chaotic Neutral	Rlyehable
Vegepygmy	Underground, Forest, Swamp	Plant	Vegepygmy, Fungus	Small	9	1/4	50	Neutral	Volo's Guide to Monsters
Amphisbaena	Desert, Grassland, Swamp	Monstrosity		Medium	11	1/2	100	Unaligned	Varied, GoS, MOoT
Adult Oblex	Swamp, Underdark, Urban	Ooze	Oblex	Medium	75	5	1,800	Lawful Evil	Mordenkainen's Tome of Foes
Monkey	Forest, Swamp	Beast	Monkey	Small	2	1/8	25	Unaligned	Rlyehable
Legendary Crocodile	Swamp	Monstrosity	Crocodile, Legendary Crocodile	Large	93	6	2,300	Neutral Evil	Ghosts of Saltmarsh
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
Ghoul	Shadowfell, Swamp, Underdark, Underground, Urban	Undead	Ghoul	Medium	22	1	200	Chaotic Evil	SRD5
Bullywug Royal (5e)/Dunwater	Swamp	Humanoid	Bullywug, Bullywug Royal	Medium	52	3	700	Neutral Evil	Ghosts of Saltmarsh
Nagpa	Coastal, Desert, Forest, Swamp, Urban	Humanoid	Nagpa	Medium	187	17	18,000	Neutral Evil	Mordenkainen's Tome of Foes
Shambling Mound	Forest, Swamp	Plant		Large	136	6	2,300	Unaligned	SRD5
Drake	Arctic, Desert, Forest, Mountain, Swamp, Underdark, Underground, Urban	Overview	Dragon, Drake						"Varied"
Sword Wraith Commander	Grassland, Swamp	Undead	Sword Wraith	Medium	127	8	3,900	Lawful Evil	Mordenkainen's Tome of Foes
Revenant	Arctic, Desert, Forest, Hill, Swamp, Urban	Overview	Undead, Revenant						Monster Manual (5e)
Klarg	Feywild, Forest, Hill, Swamp	Fey		Huge	92	7	2,900	Chaotic Neutral	Rlyehable
Yuan-ti Malison (5e)/Type 5	Desert, Forest, Swamp	Monstrosity	Shapechanger, Yuan-ti	Medium	66	3	700	Neutral Evil	Volo's Guide to Monsters
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
Groff	Swamp	Plant		Large	68	4	1,100	Unaligned	Strixhaven
Buckawn	Feywild, Forest, Swamp	Fey	Brownie	Small	3	1/8	25	Neutral	Rlyehable
Winged Kobold	Coastal, Desert, Forest, Hill, Mountain, Swamp, Underdark, Underground, Urban	Humanoid	Kobold	Small	7	1/4	50	Lawful Evil	Monster Manual (5e)
Garurt	Forest, Swamp	Humanoid	Lizardfolk, Lizardfolk Scaleshield	Medium	32	1	200	Neutral	Ghosts of Saltmarsh
Diseased Giant Rat	Forest, Swamp, Underdark, Underground, Urban	Beast	Rat	Small	7	1/8	25	Unaligned	SRD5
Ancient Topaz Dragon	Coastal, Swamp	Dragon	Gem Dragon, Topaz Dragon	Gargantuan	280	20	25,000	Chaotic Neutral	Fizban's Treasury of Dragons
Greater Star Spawn Emissary	Mountain, Shadowfell, Swamp, Urban	Aberration	Star Spawn	Huge	289	21	33,000		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	"Varied"
Enkki Sorcerer	Arctic, Coastal, Desert, Feywild, Forest, Grassland, Hill, Mountain, Shadowfell, Swamp, Underdark, Underground	Fey	Enkki	Small	31	6	2,300	Chaotic Neutral	Rlyehable
Yuan-ti Abomination	Desert, Forest, Swamp	Monstrosity	Shapechanger, Yuan-ti	Large	127	7	2,900	Neutral Evil	Monster Manual (5e)
Burnished Hart	Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground	Construct	Anvilwrought	Medium	45	2	450	Unaligned	Mythic Odysseys of Theros
Darkling Elder	Forest, Swamp, Underdark, Urban	Fey	Darkling	Medium	27	2	450	Chaotic Neutral	MotM, VGtM, Varied
Lizardfolk Scaleshield	Forest, Swamp	Humanoid	Lizardfolk, Lizardfolk Scaleshield	Medium	32	1	200	Neutral	Ghosts of Saltmarsh
Giant Frog	Forest, Swamp	Beast	Frog	Medium	18	1/4	50	Unaligned	SRD5
Bal-Oon	Coastal, Desert, Forest, Swamp	Monstrosity		Small	7	1/4	50	Unaligned	Rlyehable
Kobold	Coastal, Desert, Forest, Hill, Mountain, Swamp, Underdark, Urban, Underground	Humanoid	Kobold	Small	5	1/8	25	Lawful Evil	SRD5
Bodak	Swamp, Underdark, Urban	Undead	Bodak	Medium	58	6	2,300	Chaotic Evil	VGtM, MotM
Mud Mephit	Swamp	Elemental	Mephit	Small	27	1/4	50	Neutral Evil	Monster Manual (5e)
Black Dragon	Swamp	Overview	Dragon, Chromatic Dragon, Black Dragon						"Varied"
Shadow Mastiff Alpha	Forest, Hill, Shadowfell, Swamp	Monstrosity	Shadow Mastiff	Medium	49	2	450	Neutral Evil	Volo's Guide to Monsters
Giant Spider	Desert, Forest, Swamp, Underdark, Underground, Urban	Beast	Spider	Large	26	1	200	Unaligned	SRD5
Young Vicious Drake	Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground	Dragon	Drake, Vicious Drake	Large	152	9	5,000	Chaotic Neutral	Rlyehable
Vegepygmy Chief	Underground, Forest, Swamp	Plant	Vegepygmy, Fungus	Small	33	2	450	Neutral	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	SRD5
Allip	Swamp, Urban	Undead		Medium	40	5	1,800	Neutral Evil	Varied
Lizard	Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underground, Urban	Beast	Lizard	Tiny	2	0	10	Unaligned	SRD5
Adult Black Dragon	Swamp	Dragon	Chromatic Dragon, Black Dragon	Huge	195	14	11,500	Chaotic Evil	SRD5
Hydroloth	Costal, Swamp, Underwater	Fiend	Yugoloth	Medium	135	9	5,000	Neutral Evil	Mordenkainen's Tome of Foes
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
Green Hag	Forest, Hill, Swamp, Feywild	Fey	Hag	Medium	82	3	700	Neutral Evil	SRD5
Crag Cat	Arctic, Coastal, Desert, Grassland, Hill, Mountain, Swamp	Beast		Large	34	1	200	Unaligned	Storm King's Thunder
Nightwalker	Arctic, Desert, Swamp	Undead		Huge	297	20	25,000	Chaotic Evil	Mordenkainen's Tome of Foes
Constrictor Snake	Desert, Forest, Swamp, Underwater	Beast	Snake	Large	13	1/4	50	Unaligned	SRD5
Ambush Drake	Forest, Hill, Mountain, Swamp, Underground, Urban	Dragon	Drake	Medium	22	1/2	100	Unaligned	Hoard of the Dragon Queen
Sword Wraith Warrior	Grassland, Swamp	Undead	Sword Wraith	Medium	45	3	700	Lawful Evil	Mordenkainen's Tome of Foes
Spider	Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground, Urban	Overview	Beast, Spider						"Varied"
Kobold	Coastal, Desert, Forest, Hill, Mountain, Swamp, Underdark, Underground, Urban	Overview	Humanoid, Kobold						"Varied"
Yuan-ti Pureblood	Desert, Forest, Swamp, Urban	Humanoid	Yuan-ti	Medium	40	1	200	Neutral Evil	Monster Manual (5e)
Aranea	Forest, Swamp, Underground	Monstrosity	Shapechanger	Medium	32	2	450	Neutral Evil	Rlyehable