Young Sea Serpent, Variant (5e Creature)
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Huge monstrosity, neutral
Hold Breath. The serpent can hold its breath for 1 hour.
Bite. Melee Weapon Attack: +9 to hit, reach 10 ft., one target. Hit: 19 (2d12 + 6) piercing damage.
Constrict. Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit: 15 (2d8 + 6) bludgeoning damage, and the target is grappled (escape DC 16). Until this grapple ends, the creature is restrained, and the serpent can't constrict another target.
Massive green-scaled snakes that haunt the oceans, sea serpents feed on entire schools of fish, and sometimes larger prey like sharks and whales. They rarely leave the water except to breathe, for in the water they feel most comfortable. They can grow to be absolutely titanic, but the young ones are still impressive in size, being larger than even the biggest of land snakes. They are commonly thought to be vile and vicious creatures that prey on humanoids out of spite, but in truth they are territorial and make an effort to drive off intruders before attacking by breaching the water from a distance before slowly drawing nearer.