Sea Horse 5e stat block

Tiny beast, unaligned · CR 0 · 2024 version: Seahorse

Armor Class: 11
Hit Points: 1 (1d4-1)
Speed: 0 ft., swim 20 ft.
Challenge: 0 (0 XP)
Proficiency bonus: +2

STR	DEX	CON	INT	WIS	CHA
1 (-5)	12 (+1)	8 (-1)	1 (-5)	10 (+0)	2 (-4)

Senses: passive Perception 10
Languages: —

Traits

Water Breathing. The sea horse can breathe only underwater.

How the sea horse compares at CR 0

Against the 28 other challenge 0 monsters in the SRD 5.1, the sea horse has more hit points than 0 of them, which makes it one of the frailest at its CR. See every CR 0 monster.

Statistic	Sea Horse	CR 0 average
Armor Class	11	11.1
Hit points	1	4

2024 stat block: Seahorse

The 2024 Monster Manual revised the sea horse, and the SRD 5.2 carries the new stat block. What changed:

It’s called the Seahorse in the 2024 rules.
Armor Class: 11 → 12.
Speed: 0 ft., swim 20 ft. → 5 ft., swim 20 ft..
New in its stat block: Bubble Dash.

Armor Class: 12
Hit Points: 1 (1d4 - 1)
Speed: 5 ft., swim 20 ft.
Challenge: 0 (0 XP)

STR	DEX	CON	INT	WIS	CHA
1 (-5)	12 (+1)	8 (-1)	1 (-5)	10 (+0)	2 (-4)

Senses: passive Perception 12
Languages: None

Traits

Water Breathing. The seahorse can breathe only underwater.

Actions

Bubble Dash. While underwater, the seahorse moves up to its Swim Speed without provoking Opportunity Attacks.

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Browse: all CR 0 monsters · beasts · every monster