Oceanic Bulk
The serpent can move through hostile creatures spaces while swimming, but cannot end its movement there.
Sea Serpent 5e reference with CR 14, type, stat block details, token resources, terrain tools, fear hooks, and monster hunt generation.
A sea serpent is a colossal oceanic predator, a tolerance level 2 inclusion built for mythic scale and wave-born terror.
Quick 5e Answer
Sea Serpent is a CR 14 monstrosity for D&D 5e. This page includes AC 18, HP 297 (22d12 + 154), a ready stat block, a downloadable PDF, and connected encounter tools.
Original 5e-Compatible Stat Block
Huge, Monstrosity, Unaligned
This is an original Monster Almanac 5e-compatible stat block, not an official SRD stat block.
The serpent can move through hostile creatures spaces while swimming, but cannot end its movement there.
The serpent can breathe only underwater.
The serpent makes two attacks: Bite and Tail.
Melee Attack Roll: +14, reach 15 ft. Hit: 32 (4d10 + 10) Piercing damage.
Melee Attack Roll: +14, reach 20 ft. Hit: 28 (4d8 + 10) Bludgeoning damage.
Strength Saving Throw: creatures and vessels in a 60-foot Line. Failure: 72 (16d8) Bludgeoning damage and the target is pushed 30 feet. Success: Half damage.
Base + optional customizer
Base + optional customizer
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Sea Serpent 5e reference: CR 14 monstrosity, AC 18, HP 297 (22d12 + 154), 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 Sea Serpent into a focused hunt.
Sea Serpent can be used in Ocean, Coastal, Wilderness when you want a CR 14 monstrosity that helps shape combat pressure, exploration tension, or narrative danger.
Sea Serpent 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 Sea Serpent 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.
Sea Serpent is listed in Monster Almanac as a CR 14 monstrosity.
Sea Serpent 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 Sea Serpent token, portrait, chatbot, terrain, fear hook, and monster hunt tools for fast D&D prep.
After choosing Sea Serpent, 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.