Amphibious. The merrow can breathe air and water.
Multiattack. The merrow makes three attacks, using Coral Scepter and Poisoned Longbow in any combination.
Coral Scepter. Melee Attack Roll: +7, reach 5 ft. Hit:14 (2d10 + 4) Bludgeoning damage.
Poisoned Longbow. Ranged Attack Roll: +7, range 150/600 ft. Hit:8 (1d8 + 4) Piercing damage plus 7 (2d6) Poison damage.
Invective. Wisdom Saving Throw: DC 15, up to three creatures the merrow can see within 60 feet. Failure: 14 (4d6) Psychic damage, and the creature has Disadvantage on its next attack roll before the end of the merrow's next turn. Success: Half damage only.
Merrow are primarily water-dwelling people who exploit the realm of Lorwyn-Shadowmoor's land-dwelling species. They resemble large fish with humanoid torsos and arms, though their forms vary widely. Merrow are often capable warriors, but most prefer to duel with cutting words before resorting to physical violence.