Gargantuan monstrosity, unaligned

Armor Class 19 (natural armor)
Hit Points 297 (18d20 + 108)
Speed 60 ft., climb 50 ft., swim 50 ft., burrow 30 ft.

27 (+8) 16 (+3) 22 (+6) 7 (+-2) 14 (+2) 12 (+1)

Damage Immunities fire, poison
Damage Immunities poisoned
Senses tremorsense 120 ft. (blind beyond this radius), passive Perception 10
Challenge 23 (50,000 XP)


  • Reptile Hunter. The choggenmugger has advantage on attacks against dragons and reptilian beasts.


  • Multiattack. The choggenmugger makes two attacks: one with its bite and one to constrict.
  • Bite. Melee Weapon Attack: +15 to hit, reach 15 ft., one target. Hit: 34 (4d12 + 8) piercing damage.
  • Constrict. Melee Weapon Attack: +15 to hit, reach 10 ft., one Large or smaller creature. Hit: 27 (3d12 + 8) bludgeoning damage plus 27 (3d12 + 8) slashing damage. The target is grappled (escape DC 23) if the choggenmugger isn’t already constricting a creature, and the target is restrained until this grapple ends.
  • Swallow. The choggenmugger makes one bite attack against a Large or smaller creature it is grappling. If the attack hits, the target takes the bite’s damage, the target is swallowed, and the grapple ends. While swallowed, the creature is blinded and restrained, it has total cover against attacks and other effects outside the choggenmugger, and it takes 56 (16d6) acid damage at the start of each of the choggenmugger’s turns. If the choggenmugger takes 60 damage or more on a single turn from a creature inside it, the choggenmugger must succeed on a DC 21 Constitution saving throw at the end of that turn or regurgitate all swallowed creatures, which fall prone in a space within 10 feet of the choggenmugger. If the choggenmugger dies, a swallowed creature is no longer restrained by it and can escape from the corpse by using 30 feet of movement, exiting prone.


This enormous, scaled beast has the appearance of a yawning serpent with four rows of sharp teeth.

The choggenmugger is ancient; each year of its life the huge scales that cover its body grow thicker and harder and its jaws grow wider and its teeth grow sharper and its appetite grows keener than ever.

Scale-Eaters. In former ages there had been many dragons in Regos, but the one choggenmugger in the area was so fond of dragons that it ate all of them long ago.

There were also great crocodiles in the forest marshes, but all fed the hunger of choggenmugger.

Immune to Breath and Fang. As a result of their particular appetite, choggenmuggers are quite resilient to the natural weapons of their prey: fire and poison specifically.

Section 15: Copyright Notice

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

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