Merrow

Large Monstrosity, Chaotic Evil

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

The merrow can breathe air and water.

Actions

Multiattack.

The merrow makes two attacks: one with its bite and one with its claws or harpoon.

Bite.

Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 8 (1d8 + 4) piercing damage.

Claws.

Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 9 (2d4 + 4) slashing damage.

Harpoon.

Melee or Ranged Weapon Attack: +6 to hit, reach 5 ft. or range 20/60 ft., one target. Hit: 11 (2d6 + 4) piercing damage. If the target is a Huge or smaller creature, it must succeed on a Strength contest against the merrow or be pulled up to 20 feet toward the merrow.

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Merrow

Source: Monster Manual (2014), p. 219 - Licenses and attribution