Dinosaurs

Large beast, unaligned

Armor Class 13 (natural armor)

Hit Points 68 (8d10+24)

Speed 20 ft., swim 40 ft.

Skills Perception +3, Stealth +4

Senses passive Perception 13

Languages -

Challenge 2 (450 XP)

Hold Breath. The plesiosaurus can hold its breath for 1 hour.

Bite. Melee Weapon Attack: +6 to hit, reach 10 ft., one target. Hit: 14 (3d6+4) piercing damage.

Huge beast, unaligned

Armor Class 13 (natural armor)

Hit Points 95 (10d12+30)

Speed 50 ft.

Senses passive Perception 10

Languages -

Challenge 5 (1,800 XP)

Trampling Charge. If the triceratops moves at least 20 feet straight toward a creature and then hits it with a gore attack on the same turn, that target must succeed on a DC 13 Strength saving throw or be knocked prone.

If the target is prone, the triceratops can make one stomp attack against it as a bonus action.

Gore. Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit: 24 (4d8+6) piercing damage.

Stomp. Melee Weapon Attack: +9 to hit, reach 5 ft., one prone creature. Hit: 22 (3d10+6) bludgeoning damage.

Huge beast, unaligned

Armor Class 13 (natural armor)

Hit Points 136 (13d12+52)

Speed 50 ft.

Skills Perception +4

Senses passive Perception 14

Languages -

Challenge 8 (3,900 XP)

Multiattack. The tyrannosaurus makes two attacks: one with its bite and one with its tail. It can't make both attacks against the same target.

Bite. Melee Weapon Attack: +10 to hit, reach 10 ft., one target. Hit: 33 (4d12+7) piercing damage. If the target is a Medium or smaller creature, it is grappled (escape DC 17). Until this grapple ends, the target is restrained, and the tyrannosaurus can't bite another target.

Tail. Melee Weapon Attack: +10 to hit, reach 10 ft., one target. Hit: 20 (3d8+7) bludgeoning damage.

Monsters