Amphibious. The deep hunter serpent can breathe air and water.

Siege Monster. The deep hunter serpent deals double damage to objects and structures.

Actions

Multiattack. A deep hunter serpent attacks once with its tail and either bites or uses its swallow attack.

Bite. Melee Weapon Attack: +15 to hit, reach 10 ft., one target. Hit: 34 (4d12 + 8) piercing damage plus 22 (4d10) poison damage, and the target is grappled (escape DC 23) and restrained. The deep sea hunter can’t make a bit attack while it has a creature grappled with its bite.

Tail Slap. Melee Weapon Attack: +15 to hit, reach 20 ft., one target. Hit: 30 (4d10 + 8) bludgeoning damage and the target is pushed 15 feet away and knocked prone.

Swallow. A Large or smaller target grappled by the serpent’s bite attack is swallowed and the grapple ends. While swallowed, the creature is blinded and restrained, it has total cover against attacks and other effects outside the deep hunter serpent, and it takes 42 (12d6) acid damage at the start of each of the deep hunter serpent’s turns. If the deep hunter takes 30 damage or more on a single turn from a creature inside it, the serpent must succeed on a DC 25 Constitution saving throw at the end of that turn or regurgitate all swallowed creatures, which fall prone in a space within 10 feet of the serpent. If the serpent dies, a swallowed creature is no longer restrained by it and can escape from the corpse using 15 feet of movement, exiting prone.

Legendary Actions

The deep hunter sea serpent can take up to 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature’s turn. The serpent regains spent legendary actions at the start of its turn.

Tail Attack. The deep hunter serpent uses its Tail Slap.

Coiling Maneuver (Costs 2 Actions). The deep hunter sea serpent attempts to grapple a Huge or smaller target. The target must make a DC 23 Strength saving throw or be grappled and restrained. The sea serpent can’t use its other legendary actions or its Tail Slap if it’s grappling a target. At the beginning of each of the brine serpent’s turns, the grappled target takes 30 (4d10 + 8) bludgeoning damage.

Unhinge Jaw (Costs 3 Actions). The deep hunter uses its bite attack on all creatures of Large size or smaller in a 10-foot cube within 15 feet of the deep hunter. If the attack hits on any of the creatures, it can use its swallow ability.

gargantuan

dragon

cr21

tome-of-horrors

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