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Elemental, Venom

An enormous viper formed of green liquid curls upward, its dripping fangs ready to strike.

Large elemental, neutral

Armor Class 14 (natural armor)
Hit Points 93 (11d10 + 33)
Speed 40 ft, swim 50 ft.

17 (+3) 14 (+2) 16 (+3) 6 (–2) 10 (+0) 8 (–1)

Damage Resistances bludgeoning, piercing, and slashing from nonmagical attacks
Damage Immunities poison
Condition Immunities exhaustion, grappled, paralyzed, petrified, poisoned, prone, restrained, unconscious
Senses darkvision 60 ft., passive Perception 10
Languages understands Primordial but can’t speak
Challenge 4 (1,100 XP)

Special Traits

  • Liquid Form. The elemental can enter a hostile creature’s space and stop there. It can move through a space as narrow as 1 inch wide without squeezing.
  • Underwater Camouflage. The elemental has advantage on Dexterity (Stealth) checks made while underwater.


  • Multiattack. The venom elemental makes two bite attacks.
  • Bite. Melee Weapon Attack: +5 to hit, reach 10 ft., one creature. Hit: 6 (1d6 + 3) piercing damage plus 7 (2d6) poison damage, and the creature must succeed on a DC 13 Constitution saving throw or be poisoned until the end of its next turn.


The Queen’s Servants. Venom elementals are summoned from the demiplane of poisons. Venom elementals resemble water elementals but almost always take the form of a snake with prominent fangs.

Willing Visitors. Unlike other elementals, these creatures crave summoning to the Material Plane, where they can observe the effects of their bites on living creatures.

Elemental Nature. The venom elemental doesn’t require air, food, drink, or sleep.

Conjuring Blood and Venom Elementals

Conjuring a venom elemental or a blood elemental is similar to summoning a water elemental—with a few particular changes.

For both types, the spell has the same casting time, range, and duration. For a venom elemental, the water and sand used as material components are replaced by water and venom taken from a giant spider or snake within the last 3 days. For a blood elemental, the material component is salt water with at least 1 gallon of fresh, uncongealed blood added to it.

Section 15: Copyright Notice

Creature Codex. © 2018 Open Design LLC; Authors Wolfgang Baur, Dan Dillon, Richard Green, James Haeck, Chris Harris, Jeremy Hochhalter, James Introcaso, Chris Lockey, Shawn Merwin, and Jon Sawatsky.