Malebolgite, Chelydrus

Family: Malebolgite

Huge fiend (malebolgite), neutral evil

Armor Class 15 (natural armor)
Hit Points 52 (4d12 + 8)
Speed 20 ft., climb 20 ft., swim 20 ft.

19 (+4) 14 (+2) 13 (+1) 1 (-5) 12 (+1) 2 (-4)

Skills Perception +4, Stealth +5
Damage Immunities fire, poison
Condition Immunities poisoned
Senses darkvision 60 ft., passive Perception 14
Proficiency Bonus +3
Challenge 6 (2,300 XP)


  • Heated Body. A creature that touches the chelydrus or hits it with a melee attack while within 5 feet of it takes 10 (3d6) fire damage.
  • Hold Breath. The chelydrus can hold its breath for 1 hour.
  • Stench. Any creature other than a chelydrus that starts its turn within 5 feet of the chelydrus must succeed on a DC 12 Constitution saving throw or be poisoned until the start of the creature’s next turn. On a successful saving throw, the creature is immune to the stench of all chelydrus for 1 hour.


  • Bite. Melee Weapon Attack: +7 to hit, reach 15 ft., one creature. Hit: 11 (2d6 + 4) piercing damage. The target must make a DC 12 Constitution saving throw, taking 14 (4d6) poison damage on a failed save, or half as much damage on a successful one.
  • Constrict. Melee Weapon Attack: +7 to hit, reach 15 ft., one creature. Hit: 11 (2d6 + 4) bludgeoning damage plus 3 (1d6) fire damage and the target is grappled (escape DC 15). Until this grapple ends, the creature is restrained, and the snake can’t constrict another target.
  • Burning Embers (Recharge 5-6). The chelydrus can unleash smoke and embers from its pores, filling a 40-foot-radius sphere centered on the chelydrus. It lasts until initiative count 20 of the next round. Creatures and objects within or beyond the smoke are heavily obscured. A creature that enters the cloud of embers for the first time on a turn or starts its turn there takes 10 (3d6) fire damage.


An aquatic snake swims here, trailing a plume of smoke and fire wherever its scales are above water.

The chelydrus is a venomous water snake of a powerful and offensive smell. Its trails smoke and fire. Some chelydri escape their bolge and make their way to the Phleygethon, where they terrorize other denizens of Infernus.

Chelydri are formidable opponents that can easily handle any of the damned in its bolge. It is actually less effective against the lost souls it is pitted against due to the nature of its special abilities that rely on living senses (poison, stench).

Section 15: Copyright Notice

5E Foes: Infernal Bestiary. Copyright 2019, Mal and Tal Enterprises, LLC; Author Michael J. Tresca

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