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Hydroloth

Hydroloth 5e reference with CR 9, type, stat block details, token resources, terrain tools, fear hooks, and monster hunt generation.

CR 9FiendStat Block + PDFHunt Ready
Original 5e-Compatible Stat BlockDownload PDF

Overview

A hydroloth is an amphibious yugoloth assassin, a fiendish hunter that drags prey into water, strikes with poisoned jaws, and vanishes through infernal teleportation.

Quick 5e Answer

Hydroloth CR, type, stat block, and table tools

Hydroloth is a CR 9 fiend for D&D 5e. This page includes AC 17, HP 152 (16d8 + 80), a ready stat block, a downloadable PDF, and connected encounter tools.

CR9
TypeFiend
Stat BlockOriginal 5e-Compatible Stat Block
PDF SheetAvailable
AC17
HP152 (16d8 + 80)

Original 5e-Compatible Stat Block

Hydroloth

Medium, Fiend (Yugoloth), Neutral Evil

Original 5e5e-compatiblemonster-almanac-original-v1PDF Ready
Download PDF

This is an original Monster Almanac 5e-compatible stat block, not an official SRD stat block.

Armor Class17
Hit Points152 (16d8 + 80)
Challenge9 β€’ 5,000 XP
Proficiency+4
Speed
Swim 40 ft., Walk 30 ft.
Initiative
+3
Saving Throws
Con +9, Dex +7, Wis +6
Skills
Insight +6, Deception +7, Perception +6
Damage Resistances
Cold, Fire, Lightning; Bludgeoning, Piercing, Slashing from nonmagical attacks
Damage Immunities
Acid, Poison
Condition Immunities
Poisoned
Senses
Darkvision 60 ft.; Passive Perception 16
Passive Perception
16
Languages
Abyssal, Infernal, telepathy 60 ft.
STR18+4
DEX16+3
CON20+5
INT14+2
WIS14+2
CHA16+3

Traits

Stygian Swimmer

The hydroloth ignores difficult terrain caused by water, mud, sludge, and swamp growth.

Memory Eater

A creature damaged by the hydroloth's Psychic damage has Disadvantage on its next Intelligence saving throw before the end of its next turn.

Actions

Multiattack

The hydroloth makes two Claw attacks and one Drowning Gaze attack.

Claw

Melee Attack Roll: +8, reach 5 ft. Hit: 16 (2d10 + 5) Slashing damage plus 9 (2d8) Acid damage.

Drowning Gaze

Ranged Spell Attack: +7, range 90 ft. Hit: 27 (6d8) Psychic damage.

Styx Wash (Recharge 5-6)

Intelligence Saving Throw: creatures in a 30-foot Cone. Failure: 45 (10d8) Psychic damage and the target cannot take Reactions until the end of its next turn. Success: Half damage.

Legal Attribution

Original Monster Almanac compatible game statistics. This entry is designed for 5e-style tabletop play and does not reproduce closed-book stat block text.

Generated by Monster Almanac. This is original compatible game content, not an official SRD stat block.

License: Monster Almanac Original Compatible Content

Generate Terrain

Extraplanar

Base + optional customizer

Custom
Morning β€’ Planar Instability β€’ Warped Paths β€’ Arcane Storm Lines β€’ Planar Anchor
BaseOpen

Swamp

Base + optional customizer

Custom
Morning β€’ Clear β€’ Mud Flats β€’ Reeds β€’ Rotting Boardwalk
BaseOpen

Coastal

Base + optional customizer

Custom
Morning β€’ Clear β€’ Sandy Beach β€’ Low Tide β€’ Shipwreck
BaseOpen

Note: These resource links work best when you are logged in to ChatGPT in your browser.

Hydroloth Token, Portrait, Chatbot, Terrain, Fear Hooks, Hunt Generator, and D&D 5e Resources

Hydroloth 5e reference: CR 9 fiend, AC 17, HP 152 (16d8 + 80), PDF sheet, token, portrait, terrain, fear hooks, and hunt tools for Extraplanar, Swamp,… This page is part of the complete Monster Almanac stat block library. It includes a original 5e-compatible stat block with a downloadable PDF sheet, plus connected prep tools. Use this Monster Almanac page to move from search result to table prep: read the quick 5e reference, open the stat block, download the PDF when available, generate a token or portrait prompt, build matching terrain, create a monster-bound fear hook, and turn Hydroloth into a focused hunt.

Using Hydroloth in play

Hydroloth can be used in Extraplanar, Swamp, Coastal when you want a CR 9 fiend that helps shape combat pressure, exploration tension, or narrative danger.

Hydroloth works well as a supporting threat, recurring danger, or encounter-building piece inside a larger scene.

The attached original 5e-compatible stat block gives you a table-ready rules reference, and the PDF button keeps the sheet easy to print or save before the session.

This makes Hydroloth useful not only as a monster reference, but also as a scene-shaping piece for travel danger, dungeon pressure, wilderness discovery, or a stronger narrative threat.

Why this monster is useful

  • Fits naturally into Extraplanar, Swamp, Coastal.
  • Works as a CR 9 option for encounter building and pacing.
  • Connects directly with a stat block, downloadable PDF, portrait, token, chatbot, terrain, fear hook, and hunt resources.
  • Helps game masters move from reference to actual tabletop use more quickly.

Quick ideas for scene building

  • Use Hydroloth as a wandering threat tied to the local environment.
  • Pair the monster with terrain from the environments shown above.
  • Add an NPC witness, hunter, scholar, survivor, or fearful character to frame the danger.
  • Open the chatbot resource to give the creature more roleplay or lore flavor.
  • Use the hunt generator to turn this monster into a focused adventure hook.

Hydroloth 5e quick FAQ

What CR is Hydroloth in D&D 5e?

Hydroloth is listed in Monster Almanac as a CR 9 fiend.

What type of monster is Hydroloth?

Hydroloth is listed as a fiend.

Does Hydroloth have a 5e stat block?

Yes. This page includes a original 5e-compatible stat block and a downloadable PDF sheet.

Can I generate a token or hunt for Hydroloth?

Yes. This page links to Hydroloth token, portrait, chatbot, terrain, fear hook, and monster hunt tools for fast D&D prep.