---

publish: true
aliases:

• Giant Seahorse
  created: 2026-03-09T12:15:33.858-04:00
  modified: 2026-03-09T12:15:33.858-04:00
  published: 2026-03-09T12:15:33.858-04:00
  tags:
• ttrpg-cli/compendium/src/5e/xmm
• ttrpg-cli/monster/cr/1-2
• ttrpg-cli/monster/environment/underwater
• ttrpg-cli/monster/size/large
• ttrpg-cli/monster/type/beast
  cssclasses:
• json5e-monster
  obsidianUIMode: preview

---

Giant Seahorse

Source: Monster Manual (2024) p. 359, Player’s Handbook (2024) p. 350. Available in the SRD and the Free Rules (2024)

Animals

Use these stat blocks to represent the creatures they’re named for or other similar creatures. For example, the Panther stat block can also represent a mountain lion, while the Giant Goat stat block might represent a buffalo. Any of these stat blocks might also serve as fantastical animals with distinctive names and cosmetic details unique to your D&D adventures.

Gallery

title: Giant Seahorse
![](Mechanics/CLI/bestiary/beast/token/giant-seahorse-xmm.webp#token)
*Large beast, Unaligned*
 
- **Armor Class** 14 
- **Hit Points** 16 (`3d10`) 
- **Speed** 5 ft., swim 40 ft.
 
|STR|DEX|CON|INT|WIS|CHA|
|:---:|:---:|:---:|:---:|:---:|:---:|
|15 (+2)|12 (+1)|11 (+0)| 2 (-4)|12 (+1)| 5 (-3)|
 
- **Proficiency Bonus** +2
- **Saving Throws** ⏤
- **Skills** ⏤
- **Senses** passive Perception 11
- **Languages** —
- **Challenge** 1/2
 
## Traits
 
***Water Breathing.*** The seahorse can breathe only underwater.
 
## Actions
 
***Ram.*** *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.
 
## Bonus Actions
 
***Bubble Dash.*** While underwater, the seahorse moves up to half its [Swim Speed](Mechanics/CLI/rules/variant-rules/swim-speed-xphb.md) without provoking [Opportunity Attacks](Mechanics/CLI/rules/actions.md#Opportunity%20Attack).

Environment

underwater