Sea Serpent

Sea Serpent of the - - Classification

Generic   

Origin or Ancestry 

Parent Species 

Geographic Distribution within -

Anatomy and Morphology 

Perception and Sensory or Extra Sensory Capabilities 

Genetics and Reproduction 

Growth Rate and Stages 

Ecology and Habitat 

Biological Cycle 

Dietary Needs and Habits


Extended 

Biological Traits 

Average Lifespan 

Average Hight 

Average Weight 

Average Length 

Geographic Distribution 

Facial Characteristics and Features 

Body Tint, Coloring, and Markings 

Symbiotic and Parasitic Species 

Socials Structures 

Domestication 

Uses, Byproducts, and Exploitation


Statblock

Young Sea Serpent

Huge, Dragon, False Dragon, N
Armor Class

16

Hit Points

123

Speed

10ft, Swim 40ft

Str

19

+4
Dex

12

+1
Con

17

+3
Int

11

+0
Wis

13

+1
Cha

10

+0
Saves

Stength

+7

Dexterity

+1

Constitution

+6

Intellegence

+0

Wisdom

+1

Charisma

+0

Skills

Perception

+4

Stealth

+4

Damage Immunities

Cold

Senses

Passive Perception 14, Darkvision 120ft

Languages

Modern Thandian, Primordial Draconic

Challenge

8 (3,900 XP)

Proficiency Bonus

+3

Amphibious

The Serpent can breathe air and water.

Siege Monster

The Serpent deals double damage to objects and structures

Multiattack

The sea serpent makes one Bite attack and one Constrict or Tail attack.

Actions

Bite

Melee Weapon Attack: +7 to hit, reach 10 ft., one target. Hit: 2d10 + 4 (15) piercing damage plus 1d10 (5) cold damage.

Constrict

Melee Weapon Attack: +7 to hit, reach 20 ft., one creature. Hit: 4d8+4 (22) bludgeoning damage. If the target is Large or smaller, it is grappled (escape DC 15). Until this grapple ends, the target is restrained, and the sea serpent can't constrict another target.

Tail

Melee Weapon Attack: +7 to hit, reach 15 ft., one target. Hit: 1d10 + 4 (9) bludgeoning damage. If the target is a creature, it must succeed on a DC 15 Strength saving throw or be pushed up to 20 feet away and knocked prone.

Rime Breath (Recharge 5-6)

The sea serpent exhales a 30-foot cone of cold. Each creature in that area must make a DC 14 Constitution saving throw, taking 7d10 (38) cold damage on a failed save, or half as much damage on a successful one.

Ancient Sea Serpent

Huge, Dragon, False Dragon, N
Armor Class

17

Hit Points

170

Speed

10ft, Swim 40ft

Str

19

+4
Dex

12

+1
Con

17

+3
Int

11

+0
Wis

13

+1
Cha

10

+0
Saves

Stength

+7

Dexterity

+1

Constitution

+6

Intellegence

+0

Wisdom

+1

Charisma

+0

Skills

Perception

+4

Stealth

+4

Damage Immunities

Cold

Senses

Passive Perception 14, Darkvision 120ft

Languages

Modern Thandian, Primordial Draconic

Challenge

8 (3,900 XP)

Proficiency Bonus

+3

Amphibious

The Serpent can breathe air and water.

Siege Monster

The Serpent deals double damage to objects and structures

Legendary Resistance (2/Day)

If the sea serpent fails a saving throw, it can choose to succeed instead.

Multiattack

The sea serpent makes one Bite attack and one Constrict or Tail attack.

Legendary Action Uses: 3

Immediately after another creature's turn, The ancient sea serpent can expend a use to take one of the following actions. The ancient sea serpent regains all expended uses at the start of each of its turns.

Actions

Bite

Melee Weapon Attack: +12 to hit, reach 15 ft., one target. Hit: 2d12 + 7 (20) piercing damage plus 1d12 (6) cold damage.

Constrict

Melee Weapon Attack: +12 to hit, reach 20 ft., one creature. Hit: 4d10 + 7 (29) bludgeoning damage, and the target is grappled (escape DC 20). Until this grapple ends, the target is restrained, and the sea serpent can't constrict another target.

Tail

Melee Weapon Attack: +12 to hit, reach 20 ft., one target. Hit: 1d12 + 7 (13) bludgeoning damage. If the target is a creature, it must succeed on a DC 20 Strength saving throw or be pushed up to 30 feet away from the sea serpent and knocked prone.

Rime Breath (Recharge 5–6)

The sea serpent exhales a 60-foot cone of cold. Each creature in that area must make a DC 18 Constitution saving throw, taking 9d10 (49) cold damage on a failed save, or half as much damage on a successful one.

Legendary Actions

Tail

The sea serpent makes one Tail attack.

Bite (Costs 2 Actions)

The sea serpent makes one Bite attack.


Mentions