Amphibious. The merrow can breathe air and water.
Bite (1/turn). Melee Weapon Attack: +6 to hit, reach 1 m. Hit: 8 (1d8 + 4) piercing damage.
Claws (1/turn). Melee Weapon Attack: +6 to hit, reach 1 m. Hit: 9 (2d4 + 4) slashing damage.
Harpoon. Melee or Ranged Weapon Attack: +6 to hit, reach 1 m. or range 5/20 m. 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 4 meters toward the merrow.
No concoctions, maneuvers, or spells
All creatures in this system should have maneuvers or spells. You should add some maneuvers or spells to this creature. If you do so, please make a suggestion on github so I can finish adding maneuvers and spells to all creatures via https://github.com/mlenser/kryx-rpg-issues/issues/9.