Brontosaurus

D&D 2024 monster: Brontosaurus. Source: Mordenkainen Presents: Monsters of the Multiverse. challenge rating 5, creature type Beast (Dinosaur), Gargantuan siz... This massive four-legged dinosaur is large enough that most predators leave it alone. Its deadly tail can drive away or kill smaller threats. Beast (Dinosaur) Gargantuan 30 ft.