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Obsidian Ophidian

Huge · Elemental · CR 5 · Neutral

Source. Tome of Beasts 3

16 (natural armor)

136 (13d12+52)

Ability Scores

Core attributes and their modifiers.

STR

DEX

CON

INT

-3

WIS

CHA

-2

Overview

Category Monsters

Size Huge

Type Elemental

Alignment Neutral

XP 1800

Initiative Bonus +2

Movement

Walk 30 ft (9.1 m)

Swim 15 ft (4.6 m)

Climb 15 ft (4.6 m)

Crawl 15 ft (4.6 m)

Senses

Tremorsense 60 ft (18.3 m)

Passive Perception 14

Skills

Perception +1

Languages

Ignan, Terran

Resistances & Immunities

Damage Resistances

nonmagical piercing & slashing attacks

Damage Vulnerabilities

bludgeoning, cold

Condition Immunities

exhaustion, paralyzed, petrified, poisoned, prone, unconscious

Traits

Lava Walker

Can move across lava surface as if harmless solid ground. In addition can swim through lava at its walk speed.

One with Lava

Can’t be surprised by creatures within 5 ft. of lava and can sense any creature touching same pool of lava it is touching.

Sharp Fragments

When it takes bludgeoning each creature within 5 ft. of it takes 2 (1d4) piercing damage as shards of obsidian fly from it.

Volcanic Rejuvenation

Regains 10 hp at the start of its turn if at least part of its body is in contact with lava. If it takes cold dmage this doesn't function at the start of its next turn. Dies only if it starts its turn with 0 hp and doesn’t regenerate.

About Obsidian Ophidian

Obsidian Ophidian is a huge elemental with a Challenge Rating of 5. It has a neutral alignment.

In combat, this creature maintains an Armor Class of 16 and possesses 136 hit points (derived from 13d12+52).

Obsidian Ophidian has communication capabilities including Ignan, Terran. This allows it to interact verbally with various creatures and characters.

GM Tips: Using Obsidian Ophidian

1 tips available

When using Obsidian Ophidian in your D&D 5e campaign, consider these tactical approaches:

Flight Control Strategy: Target flying creatures with spells like 'Hold Person', 'Web', or 'Grease' to ground them. Without flight restriction, they can escape melee range easily. Consider area denial spells below their flight altitude to force them into disadvantageous positions.

Player Guide: Facing Obsidian Ophidian

1 strategies available

When your party encounters this creature, keep these strategies in mind:

Counter Flight Advantage: This creature can fly! Use ranged attacks, reach weapons, or spells like 'Thunderwave' to push it away. Consider 'Gust of Wind' or 'Earthbind' to ground it. Melee characters need fly speed or flight magic to engage.

Encounter Building Calculator

Standard Party Encounter (4-5 characters):

This creature is a medium encounter for a party of 4 characters of level 5.

Solo Encounter:

A single character of level 7 (up to level 20) can face this creature in a medium to hard encounter.

Experience Point Thresholds:

Medium: 3,000 XP
Hard: 4,500 XP
Deadly: 6,000 XP

Based on D&D 5e Dungeon Master's Guide encounter building guidelines. CR roughly equals party level for medium encounters.

Frequently Asked Questions

What is the challenge rating of Obsidian Ophidian?: Obsidian Ophidian has a Challenge Rating of 5, making it appropriate for parties of level 5.0.
What type of creature is Obsidian Ophidian?: Obsidian Ophidian is a Huge Elemental, which affects how certain spells and abilities interact with it.
What languages does Obsidian Ophidian speak?: Obsidian Ophidian can communicate in Ignan, Terran.