Merrow

Large Monstrosity, Chaotic Evil

AC: 13

Initiative: +2 (12)

HP: 45 (6d10 + 12)

Speed: 10 ft., swim 40 ft.

STR
18 (+4)
DEX
15 (+2)
CON
15 (+2)
INT
8 (-1)
WIS
10 (+0)
CHA
9 (-1)

Senses: Darkvision 60 ft., Passive Perception 10

Languages: Abyssal, Primordial (Aquan)

CR: 2 (XP 450; PB +2)

Habitat: Coastal, Underwater

Treasure: Any

Amphibious.

The merrow can breathe air and water.

Actions

Multiattack.

The merrow makes two attacks, using Bite, Claw, or Harpoon in any combination.

Bite.

Melee Attack Roll: +6, reach 5 ft. Hit: 6 (1d4 + 4) Piercing damage, and the target has the Poisoned condition until the end of the merrow's next turn.

Claw.

Melee Attack Roll: +6, reach 5 ft. Hit: 9 (2d4 + 4) Slashing damage.

Harpoon.

Melee or Ranged Attack Roll: +6, reach 5 ft. or range 20/60 ft. Hit: 11 (2d6 + 4) Piercing damage. If the target is a Large or smaller creature, the merrow pulls the target up to 15 feet straight toward itself.

Find this creature in the encounter builder

Merrow

Source: Monster Manual (2025), p. 210 - Licenses and attribution