Sahuagin

Blood Frenzy. The sahuagin has advantage on melee attack rolls against bloodied creatures.

Limited Amphibiousness. The sahuagin can breathe air and water. When breathing air, it must immerse itself in water once every 4 hours or begin to suffocate.

Shark Telepathy. The sahuagin can command any shark within 120 feet of it using magical telepathy.

Claw. Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 5 (1d8 + 1) slashing damage.

Trident. Melee or Ranged Weapon Attack: +3 to hit, reach 5 ft. or range 20/60 ft., one target. Hit: 4 (1d6 + 1) piercing damage or 5 (1d8 + 1) if wielded in two hands in melee.

Bite. Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 3 (1d4 + 1) piercing damage.