Large ooze, unaligned

Armor Class 15
Hit Points 95 (10d10+40)
Speed 20 ft., 40 ft. swim

20 (+5) 1 (-5) 18 (+4) 1 (-5) 1 (-5) 1 (-5)

Skills Athletics +9
Damage Resistances thunder, bludgeoning
Damage Immunities acid, piercing
Condition Immunities blinded, charmed, deafened, exhaustion, frightened, prone
Senses blindsight 60 ft., passive Perception 6
Challenge 5 (1,800 XP)

Special Traits

  • Create Spawn (1/Day). The globster takes 3 (1d6) damage and creates a new globster which attacks the nearest non-globster creature. This ability can only be used if the globster is well-fed (eating at least 4 Medium creatures or 1 Large since it last spawned, or the equivalent).
  • Stench. Any living creature within 30 feet of a globster at the beginning of its turn must make a DC 13 Constitution saving throw or be poisoned until the beginning of its next turn. If the globster is killed, this stench persists on its corpse for 1d10 days.


  • Pseudopod. Melee Weapon Attack: +8 to hit, 5 ft. reach, 1 target. Hit: 12 (2d6 + 5) bludgeoning damage. Any creature struck by this attack must make a DC 15 Constitution saving throw or be poisoned for 1d4 rounds.
  • Nauseating grasp. When a globster successfully grapples a Medium or smaller creature, the target takes damage and may be poisoned as if the globster had hit with its pseudopod attack, and it can move at full speed while carrying the grappled creature.


A globster is a living collection of half-digested parts from large sea creatures such as whales and squid. Passersby usually discover it by smell long before they see it. Many unfortunate folk who happen upon a globster mistake it for the carcass of a beached sea animal, getting too close before discovering the seemingly dead creature is very much alive. For a time, sages believed globsters were undead-that they were simply undulating wads of rotting flesh animated with a drive to feed. However, globsters are actually living creatures.

Globsters usually wash up on a beach or float to the shore to feed on terrestrial stock for a few hours before returning to the safety of water. Some say the tides and phases of the moon are to blame for the times globsters come to land to feed. Globsters reproduce by mixing parts of their own foul bodies with the poorly digested remains of their meals.

Section 15: Copyright Notice

Sea Monsters (5E) © 2021, Legendary Games; Authors Michael Ritter, Michael “solomani” Mifsud, Robert J. Grady, Mark Hart, Jeff Ibach, Alex Riggs, Scott D. Young, Jeff Lee, Matt Kimmel, and Jason Nelson.

This is not the complete section 15 entry - see the full license for this page