# Sea Serpent

*Gargantuan* *Monstrosity*

- **Armor Class:** 17
- **Hit Points:** 247 (15d20+90)
- **Speed:** walk 10 ft. swim 50 ft.
- **Challenge Rating:** 16 (15,000 XP)
- **Source:** A5e Monstrous Menagerie, page 386

| STR | DEX | CON | INT | WIS | CHA |
| --- | --- | --- | --- | --- | --- |
| 28 (+9) | 10 (+0) | 22 (+6) | 4 (-3) | 14 (+2) | 8 (-1) |

- **Saving Throws**: Dex +5, Con +11, Int +2, Wis +7, Cha +4
- **Skills:** 
- **Senses:** darkvision 60 ft., passive Perception 12
- **Languages:** 

### Special Abilities

- **Amphibious:** The serpent can breathe air and water.
- **Reactive:** The serpent can take two reactions per round, one with its tail and one with its bite. It can't take two reactions on the same turn.
- **Sinuous:** The serpent can share the space of other creatures and objects.

### Actions

- **Coils:** Melee Weapon Attack: +14 to hit, reach 5 ft., one Large or larger target in its space. Hit: 51 (4d20 + 9) bludgeoning damage. If the target is a creature  it is grappled (escape DC 22). If the target is an object  it is held. Until the grapple or hold ends  the targets speed is reduced to 0  and the sea serpents coils attack automatically hits the target. If an attacker subjects the serpent to a critical hit  this grapple or hold ends.
- **Tail:** Melee Weapon Attack: +14 to hit, reach 15 ft., one target. Hit: 27 (4d8 + 9) bludgeoning damage. If the target is a creature  it makes a DC 22 Strength saving throw. On a failure  it is pushed up to 15 feet away from the serpent and knocked prone.
- **Bite:** Melee Weapon Attack: +14 to hit, reach 15 ft., one target. Hit: 31 (4d10 + 9) piercing damage.
- **Thrash (While Bloodied):** The serpent moves up to its speed and then attacks with its tail and its bite.
- **Recover (1/Day, While Bloodied):** The serpent ends one condition or effect on itself.

### Reactions

- **Reactive Bite:** If the serpent takes 15 damage or more from a melee attack made by a creature it can see, it bites the attacker.
- **Reactive Tail:** If the serpent takes 15 damage or more from an attack made by a creature or object it can see, it makes a tail attack against the attacker.