Transparent Drift
The jellyfish has Advantage on Dexterity (Stealth) checks while fully submerged.
Giant Jellyfish 5e reference with CR 3, type, stat block details, token resources, terrain tools, fear hooks, and monster hunt generation.
A giant jellyfish is a drifting venomous marine horror, a tolerance level 2 inclusion built for stings, paralysis, and eerie grace.
Quick 5e Answer
Giant Jellyfish is a CR 3 monstrosity for D&D 5e. This page includes AC 13, HP 85 (10d10 + 30), a ready stat block, a downloadable PDF, and connected encounter tools.
Original 5e-Compatible Stat Block
Large, Monstrosity, Unaligned
This is an original Monster Almanac 5e-compatible stat block, not an official SRD stat block.
The jellyfish has Advantage on Dexterity (Stealth) checks while fully submerged.
A creature that touches the jellyfish or hits it with a melee attack while within 5 feet takes 4 (1d8) Poison damage.
The jellyfish makes two Tendril attacks.
Melee Attack Roll: +4, reach 15 ft. Hit: 7 (1d10 + 2) Lightning damage plus 4 (1d8) Poison damage, and the target cannot take Reactions until the start of its next turn.
Constitution Saving Throw: creatures within 10 feet. Failure: The target is Poisoned until the end of its next turn.
Base + optional customizer
Base + optional customizer
Note: These resource links work best when you are logged in to ChatGPT in your browser.
Giant Jellyfish 5e reference: CR 3 monstrosity, AC 13, HP 85 (10d10 + 30), PDF sheet, token, portrait, terrain, fear hooks, and hunt tools for Ocean,β¦ 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 Giant Jellyfish into a focused hunt.
Giant Jellyfish can be used in Ocean, Coastal, Underground when you want a CR 3 monstrosity that helps shape combat pressure, exploration tension, or narrative danger.
Giant Jellyfish 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 Giant Jellyfish 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.
Giant Jellyfish is listed in Monster Almanac as a CR 3 monstrosity.
Giant Jellyfish is listed as a monstrosity.
Yes. This page includes a original 5e-compatible stat block and a downloadable PDF sheet.
Yes. This page links to Giant Jellyfish token, portrait, chatbot, terrain, fear hook, and monster hunt tools for fast D&D prep.
After choosing Giant Jellyfish, the next step is usually to connect the monster with a place, an encounter shape, a supporting cast, or a character who fears it. Use the tools below to keep building without leaving the Monster Almanac workflow.