Amphibious. The brine sea serpent can breathe air and water.

Actions

Multiattack. A brine sea serpent attacks once with its bite and once with its tail.

Bite. Melee Weapon Attack: +10 to hit, reach 5 ft., one target. Hit: 21 (3d10 + 5) piercing damage plus 10 (3d6) acid damage, and the target is grappled (escape DC 18). If the brine sea serpent already has a creature grappled with its bite, it can only bite that creature, and it has advantage on that attack.

Tail Slap. Melee Weapon Attack: +10 to hit, reach 15 ft., one target. Hit: 18 (3d8 + 5) bludgeoning damage and the target must succeed at a DC 18 Strength saving throw or be pushed 10 feet away and knocked prone.

Brine Blast (Recharge 6). The brine serpent releases a 50-foot cone of briny acid. Creatures in the area must make a DC 18 Dexterity saving throw. On a failed saving throw, the target takes 72 (16d8) acid damage.

Legendary Actions

The brine 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 brine serpent uses its tail attack.

Coiling Maneuver (Costs 2 Actions). The brine sea serpent attempts to grapple a Large or smaller target. The target must make a DC 18 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 18 (3d8 + 5) bludgeoning damage.

huge

dragon

cr13

tome-of-horrors

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