Water clone

Blood Frenzy. The sahuagin has advantage on melee attack rolls against any creature that doesn't have all its hit points.

Limited Amphibiousness. The sahuagin can breathe air and water, but it needs to be submerged at least once every 4 hours to avoid suffocating.

Shark Telepathy. The sahuagin can magically command any shark within 120 feet of it, using a limited telepathy.                                                                                                                                                                                                                                                   water teleportation: can instantly move 20 feet without taking away movement (must be in water to use this trait)

Multiattack. The sahuagin makes two melee attacks: one with its bite and one with its claws or spear.

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

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

Spear. 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) piercing damage if used with two hands to make a melee attack.

Water form: Attack of opportunity if hit with non magical weapon as the weapon sinks into the watery shape and holds creature in place long enough for a single water slap dealing 1d6 force damage (unless damage would kill the clone)