Water Breathing
The seahorse can breathe only underwater.
Giant Sea Horse 5e reference with CR 1/2, type, stat block details, token resources, terrain tools, fear hooks, and monster hunt generation.
A sea horse over 8 feet long with a horseβlike head and curled tail. Its body is covered in bony plates, and a dorsal fin runs down its back; it propels itself by undulating its fin.
Quick 5e Answer
Giant Sea Horse is a CR 1/2 beast for D&D 5e. This page includes AC 14, HP 16 (3d10), a ready stat block, a downloadable PDF, and connected encounter tools.
Official SRD 5.2.1 Stat Block
Large, Beast, Unaligned
This stat block uses official SRD 5.2.1 content under CC-BY-4.0 attribution.
The seahorse can breathe only underwater.
Melee Attack Roll: +4, reach 5 ft. Hit: 9 (2d6 + 2) Bludgeoning damage, or 11 (2d8 + 2) Bludgeoning damage if the seahorse moved 20+ feet straight toward the target immediately before the hit.
While underwater, the seahorse moves up to half its Swim Speed without provoking Opportunity Attacks.
Base + optional customizer
Base + optional customizer
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Giant Sea Horse 5e reference: CR 1/2 beast, AC 14, HP 16 (3d10), PDF sheet, token, portrait, terrain, fear hooks, and hunt tools for Underwater, Coastal. This page is part of the complete Monster Almanac stat block library. It includes a official srd 5.2.1 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 Sea Horse into a focused hunt.
Giant Sea Horse can be used in Underwater, Coastal when you want a CR 1/2 beast that helps shape combat pressure, exploration tension, or narrative danger.
Giant Sea Horse works well as a supporting threat, recurring danger, or encounter-building piece inside a larger scene.
The attached official srd 5.2.1 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 Sea Horse 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 Sea Horse is listed in Monster Almanac as a CR 1/2 beast.
Giant Sea Horse is listed as a beast.
Yes. This page includes a official srd 5.2.1 stat block and a downloadable PDF sheet.
Yes. This page links to Giant Sea Horse token, portrait, chatbot, terrain, fear hook, and monster hunt tools for fast D&D prep.
After choosing Giant Sea Horse, 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.