well here is some monsters i thought of and found layin around on the internet
Cerberus:3 headed dog-like creature with serpent-like tail;Cerberus guarded the underworld
Griffin:it is part bird and part lion;capable of carrying a man or a horse in its talons
Roc:A huge bird,that is capable of carrying off a knight on his horse
Centaurs:Half horse, half man;Often depicted as violent and war-like
Dragons:dangerous winged carnivorous reptiles
Basilisks:small winged snakes with a crest on the head like a crown;Very poisonous
Hydra:A serpent/dragon with multiple heads;one head cut off 2 would grow back
Gorgons:gorgon were women who had serpents instead of hair such as Medusa
Sea Serpent:Giant serpents that are seen by sailors
Wyvern:winged variety of the dragon, with 2 bird-like legs:has a barbed tail
Leviathan:A huge sea serpent;At the End of Days, the Behemoth and Leviathan will battle, destroying each other
Behemoth:Large animal, like a hippopotamus;At the End of Days, the
Behemoth and Leviathan will battle, destroying each other
Garbonzo
Cerberus:3 headed dog-like creature with serpent-like tail;Cerberus guarded the underworld
Griffin:it is part bird and part lion;capable of carrying a man or a horse in its talons
Roc:A huge bird,that is capable of carrying off a knight on his horse
Centaurs:Half horse, half man;Often depicted as violent and war-like
Dragons:dangerous winged carnivorous reptiles
Basilisks:small winged snakes with a crest on the head like a crown;Very poisonous
Hydra:A serpent/dragon with multiple heads;one head cut off 2 would grow back
Gorgons:gorgon were women who had serpents instead of hair such as Medusa
Sea Serpent:Giant serpents that are seen by sailors
Wyvern:winged variety of the dragon, with 2 bird-like legs:has a barbed tail
Leviathan:A huge sea serpent;At the End of Days, the Behemoth and Leviathan will battle, destroying each other
Behemoth:Large animal, like a hippopotamus;At the End of Days, the
Behemoth and Leviathan will battle, destroying each other
Garbonzo