Two-Headed Plesiosaurus

Large Beast, Unaligned

AC: 13

Initiative: +2 (12)

HP: 100 (8d10 + 24)

Speed: 20 ft., swim 40 ft.

STR
18 (+4)
DEX
15 (+2)
CON
16 (+3)
INT
2 (-4)
WIS
12 (+1)
CHA
5 (-3)

Skills: Perception +3, Stealth +4

Senses: Passive Perception 13

CR: 4 (XP 1,100; PB +2)

Habitat: Underwater, Coastal

Two Heads.

The two-headed plesiosaurus has advantage on Wisdom (Perception) checks and on saving throws against being blinded, charmed, deafened, frightened, stunned, and knocked unconscious.

Hold Breath.

The plesiosaurus can hold its breath for 1 hour.

Actions

Multiattack.

The two-headed plesiosaurus makes two bite attacks.

Bite.

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

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Two-Headed Plesiosaurus

Source: The Tortle Package, p. 18 - Licenses and attribution