All Monsters (7)

• Babbler - Mutant lizard-like creatures with incomprehensible speech, resembling miniature tyrannosaurs
  OSRIC
• Dragon, Black - Fearsome dragons that spew corrosive venom, found in swamps, marshes and deep, dark caves
  OSRIC
• Dragon, Swamp (Black Dragon) - Green-skinned dragons so dark they appear black, especially in water
  BFRPG
• Giant Lizard - Giant lizards that dwell in marshy or swampy areas
  OSRIC
• Hydra - Reptile-like monsters with multiple heads, gray-brown to dark brown with light yellow or tan underbelly
  BFRPG, OSE, OSRIC
• Leech, Giant - Slimy, segmented wormlike creatures which live in water
  BFRPG, OSE
• Shambling Mound - Intelligent plant creatures appearing as piles of rotting vegetation
  OSRIC