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Isonade

Gargantuan · Monstrosity · CR 14 · Chaotic Neutral

Source. Tome of Beasts 1 (2023 Edition)

18 (natural armor)

222 (12d20 + 96)

Ability Scores

Core attributes and their modifiers.

STR

+10

DEX

CON

INT

-2

WIS

CHA

-1

Overview

Category Monsters

Size Gargantuan

Type Monstrosity

Alignment Chaotic Neutral

XP 11500

Initiative Bonus +2

Movement

Walk 100 ft (30.5 m)

Swim 50 ft (15.2 m)

Climb 50 ft (15.2 m)

Crawl 50 ft (15.2 m)

Senses

Darkvision 90 ft (27.4 m)

Passive Perception 19

Saving Throws

Strength +15 Constitution +13 Wisdom +9

Skills

Athletics +15 Perception +9

Languages

understands Aquan and Elvish, but can't speak

Resistances & Immunities

Damage Immunities

cold

Traits

Influence Weather

Nearby weather responds to the isonade’s desires. At the start of each minute, the isonade can choose to change the precipitation and wind within 1 mile of it by one stage, up or down (no action required). This effect works like the changing weather conditions aspect of the control weather spell, except the isonade can’t change the temperature and the conditions change immediately.

Magic Resistance

The isonade has advantage on saving throws against spells and other magical effects.

Siege Monster

The isonade deals double damage to objects and structures.

Water Breathing

The isonade can breathe only underwater.

Actions

Bite

+15 to hit, reach 15 ft (4.6 m). Hit: 4d12+10 acid damage.

Melee Weapon Attack: +15 to hit, reach 15 ft., one target. Hit: 36 (4d12 + 10) piercing damage. If the target is a Large or smaller creature, it must succeed on a DC 18 Dexterity saving throw or be swallowed by the isonade. A swallowed creature is blinded and restrained, it has total cover against attacks and other effects outside the isonade, and it takes 21 (6d6) acid damage at the start of each of the isonade's turns. An isonade can have no more than four creatures swallowed at a time. If the isonade takes 30 damage or more on a single turn from a creature inside it, it must succeed on a DC 23 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 isonade. If the isonade dies, a swallowed creature is no longer restrained by it and can escape from the corpse by using 20 feet of movement, exiting prone.

Breach

If the isonade swims at least 20 feet as part of its movement, it can use this action to emerge in a space on the surface of the water that contains one or more other creatures. Each of those creatures and each creature within 10 of the isonade's space must make a DC 18 Dexterity saving throw. On a failure, a creature takes 49 (14d6) bludgeoning damage and is knocked prone. On a success, a creature takes half the damage and is pushed up to 10 feet out of the isonade's space into an unoccupied space of the creature's choice. If no unoccupied space is within range, the creature instead falls prone in the isonade's space.

Multiattack

The isonade makes one Bite attack and two Tail Slap attacks.

Tail Slap

+15 to hit, reach 15 ft (4.6 m). Hit: 4d6+10 bludgeoning damage.

Melee Weapon Attack: +15 to hit, reach 15 ft., one target. Hit: 24 (4d6 + 10) bludgeoning damage.

About Isonade

Isonade is a gargantuan monstrosity with a Challenge Rating of 14. It has a chaotic neutral alignment.

In combat, this creature maintains an Armor Class of 18 and possesses 222 hit points (derived from 12d20 + 96).

Isonade has communication capabilities including understands Aquan and Elvish, but can't speak. This allows it to interact verbally with various creatures and characters.

GM Tips: Using Isonade

2 tips available

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

Boss Encounter: Suitable for climactic moments
Multi-phase Battle: Plan dramatic tension with multiple phases

Player Guide: Facing Isonade

2 strategies available

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

Major Threat: Prepare for epic battle
Resource Management: Conserve powerful abilities

Encounter Building Calculator

Standard Party Encounter (4-5 characters):

This creature is a medium encounter for a party of 4 characters of level 14.

Solo Encounter:

A single character of level 18 (up to level 20) can face this creature in a medium to hard encounter.

Experience Point Thresholds:

Medium: 21,000 XP
Hard: 31,500 XP
Deadly: 42,000 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 Isonade?: Isonade has a Challenge Rating of 14, making it appropriate for parties of level 14.0.
What type of creature is Isonade?: Isonade is a Gargantuan Monstrosity, which affects how certain spells and abilities interact with it.
What languages does Isonade speak?: Isonade can communicate in understands Aquan and Elvish, but can't speak.