Dinosaurs

Plesiosaurus

Large beast, unaligned

Armor Class
13 (natural armor)
Hit Points
68 (8d10 + 24)
Speed
20 ft., swim 40 ft.
STR DEX CON INT WIS CHA
18 (+4) 15 (+2) 16 (+3) 2 (−4) 12 (+1) 5 (−3)
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.

Actions

Bite.

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

Triceratops

Huge beast, unaligned

Armor Class
13 (natural armor)
Hit Points
95 (10d12 + 30)
Speed
50 ft.
STR DEX CON INT WIS CHA
22 (+6) 9 (−1) 17 (+3) 2 (−4) 11 (+0) 5 (−3)
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.

Actions

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.

Tyrannosaurus Rex

Huge beast, unaligned

Armor Class
13 (natural armor)
Hit Points
136 (13d12 + 52)
Speed
50 ft.
STR DEX CON INT WIS CHA
25 (+7) 10 (+0) 19 (+4) 2 (−4) 12 (+1) 9 (−1)
Skills
Perception +4
Senses
passive Perception 14
Languages
Challenge
8 (3,900 XP)

Actions

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.