Monster	Climate/Terrain	Frequency	Source
Aballin	Temperate or Tropical/Wilderness or Subterranean	Uncommon	FORGOTTEN REALMS® Campaign Setting, Revised
Baneguard	Any (Guardian)	Rare	FORGOTTEN REALMS® Campaign Setting, Revised
Direguard	Any (Guardian)	Rare	FORGOTTEN REALMS® Campaign Setting, Revised
Dracolich	Special	Very Rare	FORGOTTEN REALMS® Campaign Setting, Revised
Bonebat	Any Land	Rare	FORGOTTEN REALMS® Campaign Setting, Revised
Deepspawn	Any	Very Rare	FORGOTTEN REALMS® Campaign Setting, Revised
Gambado	Temperate and Subtropical/Plains and Subterranean	Rare	FORGOTTEN REALMS® Campaign Setting, Revised
Gibbering Mouther	Any/Swamp, Underground	Very Rare	FORGOTTEN REALMS® Campaign Setting, Revised
Gibberling	Temperate/Forest and Subterranean	Uncommon	FORGOTTEN REALMS® Campaign Setting, Revised
Helmed Horror	Any	Rare	FORGOTTEN REALMS® Campaign Setting, Revised
Battle Horror	Any	Very Rare	FORGOTTEN REALMS® Campaign Setting, Revised
Lock Lurker	Any Land	Rare	FORGOTTEN REALMS® Campaign Setting, Revised
Naga, Dark	Any Land Except Arctic	Very Rare	FORGOTTEN REALMS® Campaign Setting, Revised
Nishruu	Any	Very Rare	FORGOTTEN REALMS® Campaign Setting, Revised
Quaggoth	Underdark	Rare	FORGOTTEN REALMS® Campaign Setting, Revised
Skum	Tropical/Temperate Subterranean	Very Rare	FORGOTTEN REALMS® Campaign Setting, Revised
Tressym	Any Temperate Land	Very Rare	FORGOTTEN REALMS® Campaign Setting, Revised
Curst	Any (Prefer Subterranean)	Rare; Uncommon (in Waterdeep)	City of Splendors
Doppleganger, Greater	Any	Very Rare	City of Splendors
Duhlarkin, Generic	Any	Very Rare	City of Splendors
Duhlarkin, Wolveraven	Any Sub-arctic	Very Rare	City of Splendors
Ghaunadan	Subterranean	Rare	City of Splendors
Gulguthydra	Swamp or Subterranean	Very Rare	City of Splendors
Hakeashar	Any	Very Rare	City of Splendors
Leucrotta, Greater	Any	Very Rare	City of Splendors
Nyth	Any	Rare	City of Splendors
Palimpsest	Temperate/Urban (City/Library)	Very Rare	City of Splendors
Peltast	Any Land	Very Rare	City of Splendors
Peltast, Greater	Any Land	Very Rare	City of Splendors
Raggamoffyn, Common	Any Temperate/Urban	Uncommon	City of Splendors
Raggamoffyn, Tatterdemanimal	Any Temperate/Urban	Uncommon	City of Splendors
Raggamoffyn, Gutterspite	Any Temperate/Urban	Rare	City of Splendors
Raggamoffyn, Shrapnyl	Any Temperate/Urban	Very Rare	City of Splendors
Sewerm	Temperate/Subterranean or Swamp	Rare	City of Splendors
Shadowrath, Lesser	Any Land	Very Rare	City of Splendors
Shadowrath, Greater	Any Land	Very Rare	City of Splendors
Watchspider	Any Temperate	Rare; Uncommon (in Waterdeep)	City of Splendors
Wereshark	Any Ocean	Very Rare	City of Splendors
Banedead	Any	Rare	Ruins of Zhentil Keep
Banelich	Any	Very Rare	Ruins of Zhentil Keep
Burnbones	Any Land	Very Rare	Ruins of Zhentil Keep
Elemental, Nature	Forest	Very Rare	Ruins of Zhentil Keep
Gargoyle, Guardgoyle	Any Land	Rare	Ruins of Zhentil Keep
Gargoyle, Guardgoyle, Greater	Any Land	Rare	Ruins of Zhentil Keep
Golem, Magic	Any	Very Rare	Ruins of Zhentil Keep
Golem, Vault Guardian	Any	Rare	Ruins of Zhentil Keep
Hybsil	Any Temperate Forest, Plains, or Hills	Rare	Ruins of Zhentil Keep
Magedoom	Any	Very Rare	Ruins of Zhentil Keep
Mist, Scarlet Dancer	Swamps/Sewers	Rare	Ruins of Zhentil Keep
Ondonti	Any Land	Rare	Ruins of Zhentil Keep
Rat, Zhentish Sewer	Subterranean	Uncommon	Ruins of Zhentil Keep
Render	Any	Very Rare	Ruins of Zhentil Keep
Sacaanti	Any	Very Rare	Ruins of Zhentil Keep
Snake, Messenger	Any	Very Rare	Ruins of Zhentil Keep
Zhentarim Spirit	Any/Zhentarim-Controlled Areas	Very Rare	Ruins of Zhentil Keep
Beholder, Elder Orb	Any (Remote Areas)	Very Rare	The Ruins of Undermountain
Beholder-kin, Death Kiss	Any (Remote Areas)	Rare	The Ruins of Undermountain
Darktentacles	All Wetlands	Very Rare	The Ruins of Undermountain
Ibrandlin	Any Land or Subterranean	Very Rare	The Ruins of Undermountain
Scaladar	Any Warm Land or Subterranean	Very Rare	The Ruins of Undermountain
Sharn	Any Land	Very Rare	The Ruins of Undermountain
Slithermorph	Any Land or Water	Rare	The Ruins of Undermountain
Snakes, Flying, Flying Fang	Any	Uncommon	The Ruins of Undermountain
Snakes, Flying, Deathfang	Any	Very Rare	The Ruins of Undermountain
Steel Shadow	Any	Rare	The Ruins of Undermountain
Watchghost	Any Land	Rare	The Ruins of Undermountain
Tome Guardian	Any	Very Rare	Pages from the Mages
Scalamagdrion	Subarctic Caverns	Very Rare	Pages from the Mages
Disenchanter	Any	Very Rare	Pages from the Mages
Alaghi	Temperate/Mountainous Forests	Very Rare	MC11: Forgotten Realms Appendix
Alguduir, Adult	Marshes	Rare	MC11: Forgotten Realms Appendix
Alguduir, Young	Marshes	Rare	MC11: Forgotten Realms Appendix
Avian, Flightless	Subtropical/Plains	Common	MC11: Forgotten Realms Appendix
Avian, Boobrie	Subtropical/Swamps	Rare	MC11: Forgotten Realms Appendix
Avian, Eblis	Subtropical/Swamps	Very Rare	MC11: Forgotten Realms Appendix
Bat, Deep, Azmyth	Any Temperate/Any	Rare	MC11: Forgotten Realms Appendix
Bat, Deep, Night Hunter	Any Temperate/Any	Uncommon	MC11: Forgotten Realms Appendix
Bat, Deep, Sinister	Any/Any	Rare	MC11: Forgotten Realms Appendix
Bat, Deep, Werebat	Any/Any	Very Rare	MC11: Forgotten Realms Appendix
Beguiler	Dry Steppes	Rare	MC11: Forgotten Realms Appendix
Cantobele	Swamps and Forests	Rare	MC11: Forgotten Realms Appendix
Cat, Domestic	Any/Inhabited	Common	MC11: Forgotten Realms Appendix
Cat, Wild	Any/Non-arctic	Uncommon	MC11: Forgotten Realms Appendix
Cat, Elven	Temperate/Forests	Rare	MC11: Forgotten Realms Appendix
Cat, Luck Eater	Any/Non-arctic	Rare	MC11: Forgotten Realms Appendix
Cat, Change Cat	Temperate/Forests and Plains	Rare	MC11: Forgotten Realms Appendix
Chitine	Any Subterranean	Rare	MC11: Forgotten Realms Appendix
Cildabrin	Warm Subterranean Areas	Very Rare	MC11: Forgotten Realms Appendix
Dimensional Warper	Any	Very Rare	MC11: Forgotten Realms Appendix
Dragon, Deep	Hill and Mountain Caverns, Subterranean	Rare	MC11: Forgotten Realms Appendix
Elf, Aquatic	Temperate/Shallow Salt Water	Very Rare	MC11: Forgotten Realms Appendix
Fachan	Swamps	Very Rare	MC11: Forgotten Realms Appendix
Feyr	Urban	Very Rare	MC11: Forgotten Realms Appendix
Feyr, Great	Any	Very Rare	MC11: Forgotten Realms Appendix
Firetail, Lesser	Any but Cold	Rare	MC11: Forgotten Realms Appendix
Firetail, Tshala	Any but Cold	Very Rare	MC11: Forgotten Realms Appendix
Frost	Subarctic and Cold/Winter Temperate Forests	Rare	MC11: Forgotten Realms Appendix
Gaund	Subterranean, Hot Caverns	Rare	MC11: Forgotten Realms Appendix
Giant, Mountain	Any/Mountains	Very Rare	MC11: Forgotten Realms Appendix
Gloomwing, Flying Serpent	Any	Rare	MC11: Forgotten Realms Appendix
Gloomwing, Moth	Any, Demi Plane of Shadow	Rare	MC11: Forgotten Realms Appendix
Golden Ammonite	Oceanic Canyons Over 1,000' Deep	Very Rare	MC11: Forgotten Realms Appendix
Golem, Lightning	Any Land	Very Rare	MC11: Forgotten Realms Appendix
Hamadryad	Temperate, Subtropical/Forest	Very Rare	MC11: Forgotten Realms Appendix
Harrier	Jungle	Very Rare	MC11: Forgotten Realms Appendix
Harrier, Larvae	Jungle	Very Rare	MC11: Forgotten Realms Appendix
Harrla	Any Urban Area	Very Rare	MC11: Forgotten Realms Appendix
Haun	Arctic Ice Pack and Glaciers	Very Rare	MC11: Forgotten Realms Appendix
Haunder	Icebergs, Arctic Valleys	Rare	MC11: Forgotten Realms Appendix
Hendar	Desolate Areas (Temperate)	Rare	MC11: Forgotten Realms Appendix
Inquisitor	Urban/Subterranean	Very Rare	MC11: Forgotten Realms Appendix
Lhiannan Shee	Subarctic to Tropical Woodlands	Very Rare	MC11: Forgotten Realms Appendix
Loxo	Temperate or Tropical Grasslands	Very Rare	MC11: Forgotten Realms Appendix
Manni	Temperate Forest and Steppe	Rare	MC11: Forgotten Realms Appendix
Mara	Variable	Rare	MC11: Forgotten Realms Appendix
Morin	Plains or Steppe	Uncommon	MC11: Forgotten Realms Appendix
Naga, Dark	Any Except Arctic/Any Land	Very Rare	MC11: Forgotten Realms Appendix
Orpsu	Temperate/Any Dry	Rare	MC11: Forgotten Realms Appendix
Peryton	Any/Mountains	Rare	MC11: Forgotten Realms Appendix
Phantom	Any/Land	Very Rare	MC11: Forgotten Realms Appendix
Plant, Carnivorous, Retch Plant	Any/Warm Land	Rare	MC11: Forgotten Realms Appendix
Plant, Carnivorous, Snapper-Saw	Any/Land	Very Rare	MC11: Forgotten Realms Appendix
Plant, Carnivorous, Thornslinger	Any/Land	Rare	MC11: Forgotten Realms Appendix
Plant, Carnivorous, Vine, Viper	Tropical/Forests	Rare	MC11: Forgotten Realms Appendix
Plant, Carnivorous, Weed, Whip-	Non-Arctic/Dark	Uncommon	MC11: Forgotten Realms Appendix
Plant, Carnivorous, Weed, Wither-	Non-Arctic/Ruins	Uncommon	MC11: Forgotten Realms Appendix
Plant, Carnivorous, Willow, Black	Any/Any	Very Rare	MC11: Forgotten Realms Appendix
Ring-worm	Any	Very Rare	MC11: Forgotten Realms Appendix
Rohch, Wood	Any Forest	Uncommon	MC11: Forgotten Realms Appendix
Rohch, Killer	Any Forest	Uncommon	MC11: Forgotten Realms Appendix
Rohch, Swamp	Any Swamp	Rare	MC11: Forgotten Realms Appendix
Rohch, Dark	Tropical/Subtropical	Rare	MC11: Forgotten Realms Appendix
Sand Cat	Desert or Dry Steppe	Uncommon	MC11: Forgotten Realms Appendix
Saurial, Finhead	Jungle	Very Rare	MC11: Forgotten Realms Appendix
Saurial, Bladeback	Jungle	Very Rare	MC11: Forgotten Realms Appendix
Saurial, Flyer	Jungle/Mountain	Very Rare	MC11: Forgotten Realms Appendix
Saurial, Hornhead	Jungle	Very Rare	MC11: Forgotten Realms Appendix
Sha'az	Arctic Glaciers	Rare	MC11: Forgotten Realms Appendix
Silver Dog	Forest	Very Rare	MC11: Forgotten Realms Appendix
Simpathetic	Plains	Very Rare	MC11: Forgotten Realms Appendix
Skuz	Ponds, Lakes	Very Rare	MC11: Forgotten Realms Appendix
Spider, Monkey	Tropical Rain Forest, Southern Cities	Rare	MC11: Forgotten Realms Appendix
Tempest	Any Outside	Very Rare	MC11: Forgotten Realms Appendix
Tlincalli	Tropicalor Subtropical, Desert or Caves	Rare	MC11: Forgotten Realms Appendix
Tren	Damp Subterranean	Rare	MC11: Forgotten Realms Appendix
Quelzarn	Tropical, Subtropical, and Temperate Fresh and Salt Water	Uncommon	FRE2 Tantras