Giant Crab

Medium Beast, Unaligned

AC: 15

Initiative: +1 (11)

HP: 13 (3d8)

Speed: 30 ft., swim 30 ft.

STR
13 (+1)
DEX
13 (+1)
CON
11 (+0)
INT
1 (-5)
WIS
9 (-1)
CHA
3 (-4)

Skills: Stealth +3

Senses: Blindsight 30 ft., Passive Perception 9

CR: 1/8 (XP 25; PB +2)

Habitat: Coastal, Underwater

Amphibious.

The crab can breathe air and water.

Actions

Claw.

Melee Attack Roll: +3, reach 5 ft. Hit: 4 (1d6 + 1) Bludgeoning damage. If the target is a Medium or smaller creature, it has the Grappled condition (escape DC 11) from one of two claws.

Find this creature in the encounter builder

Giant Crab

Source: Monster Manual (2025), p. 356 - Licenses and attribution