# [Brontosaurus](Rules\Source\bestiary\beast/brontosaurus-mpmm.md)
*Source: Mordenkainen Presents: Monsters of the Multiverse p. 95*
This massive four-legged dinosaur is large enough that most predators leave it alone. Its deadly tail can drive away or kill smaller threats.
```statblock
"name": "Brontosaurus (MPMM)"
"size": "Gargantuan"
"type": "beast"
"subtype": "dinosaur"
"alignment": "Unaligned"
"ac": !!int "15"
"ac_class": "natural armor"
"hp": !!int "121"
"hit_dice": "9d20 + 27"
"modifier": !!int "-1"
"stats":
- !!int "21"
- !!int "9"
- !!int "17"
- !!int "2"
- !!int "10"
- !!int "7"
"speed": "30 ft."
"saves":
- "constitution": !!int "6"
"senses": "passive Perception 10"
"languages": ""
"cr": "5"
"actions":
- "desc": "*Melee Weapon Attack:* +8 to hit, reach 20 ft., one target. *Hit:* 27\
\ (5d8 + 5) bludgeoning damage, and the target must succeed on a DC 14 Strength\
\ saving throw or be knocked [prone](/Rules/Source/conditions.md#Prone)."
"name": "Stomp"
- "desc": "*Melee Weapon Attack:* +8 to hit, reach 20 ft., one target. *Hit:* 32\
\ (6d8 + 5) bludgeoning damage."
"name": "Tail"
"source":
- "MPMM"
"image": "/Rules/Source/bestiary/beast/token/brontosaurus-mpmm.webp"
```
^statblock
## Environment
forest, grassland