Brontosaurus
Gargantuan Beast (dinosaur), UnalignedAC 15 (natural armor)
HP 121 (9d20 + 27)
Speed 30 ft.
STR
21 (+5)
Save +5
DEX
9 (-1)
Save -1
CON
17 (+3)
Save +6
INT
2 (-4)
Save -4
WIS
10 (+0)
Save +0
CHA
7 (-2)
Save -2
Saving Throws CON +6
Senses Passive Perception 10
CR 5
Actions
Stomp. 8 to hit, reach 20 ft., one target. Hit: 27 (5d8 + 5) bludgeoning damage, and the target must succeed on a 14 Strength saving throw or be knocked prone.
Tail. 8 to hit, reach 20 ft., one target. Hit: 32 (6d8 + 5) bludgeoning damage.