Goblin, Sea

Family: Goblin

Small elemental (goblinoid), chaotic evil

Armor Class 12
Hit Points 9 (2d6 + 2)
Speed 30 ft., swim 30 ft.

8 (-1) 14 (+2) 12 (+1) 9 (-1) 11 (+0) 7 (-2)

Skills Perception +2, Stealth +4
Damage Immunities acid, poison; bludgeoning, piercing, and slashing from nonmagical attacks
Condition Immunities grappled, petrified, poisoned, restrained
Senses darkvision 60 ft., passive Perception 12
Languages Goblin
Challenge 1/4 (50 XP)


  • Amphibious. The goblin can breathe air and water.
  • Freeze. If the goblin takes cold damage, it partially freezes; its speed is reduced by 20 feet until the end of its next turn.
  • Pack Tactics. The goblin has advantage on an attack roll against a creature if at least one of the goblin‘s allies is within 5 feet of the creature and the ally isn’t incapacitated.
  • Tater Form. The goblin can enter a hostile creature’s space and stop there. It can move through a space as narrow as 1 inch wide without squeezing.


  • Spear. Melee or Ranged Weapon Attack: +4 to hit, reach 5 ft. or range 20/60 ft., one target. Hit: 5 (1d6 + 2) piercing damage, or 6 (1d8 + 2) piercing damage if used with two hands to make a melee attack.


What you at first took to be a sea serpent has a body that is leagues long and yards through. The head is as large as a whole elephant with a long curling silver tongue and darting green fangs. But it’s teeth make it clear this is no ordinary serpent. Each tooth of this singular sea serpent is a live white goblin brandishing a long spear. Leaning far out of the yawning mouth, they scream, hiss and yell.

Sea goblins are a rare form of elemental that come together for a singular purpose: to feed. A minor threat on their own, sea goblins are ferocious when fully assembled into their sea serpent form.

Not Goblins… Sea goblins are curiously misnamed, no doubt in part due to their horned, goblin-like appearance.

Made of water, these bizarre monsters float about in the ocean, terrorizing all they encounter. Their immunities makes them a threat to most beasts, and their lack of organization makes them poor troops.

… But Not Serpents. It’s when sea goblins get together that they become a danger to even sailing vessels. Sea goblins have an instinctive urge to bind with others of their kind, and it drives them into a frenzy. They transform into a coiling serpent-like form that willfully attacks anything large enough to catch its notice.

Section 15: Copyright Notice

5E RPG: Oz Adventures. Copyright 2021, Mal and Tal, LLC; Author Michael Tresca.

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