Creature of the Black Lagoon

Aquatic:  No penalty when fighting underwater and get +2 to attack and damage rolls when submerged.  Can breath air and water

Powerful Build.  When moving objects, he has the strength of a Large Creature

Fast healer: When healing he restores an extra 1d4.  (usable once per round).

Claw. Melee Weapon Attack: +7 to hit, reach 5 ft., 1 target. Hit: (2d10 + 8) Bludgeoning or Piercing damage.   On a hit, he can use its Bonus action to attempt a grapple:  

Throw. Using a grappled creature, he can throw it up to 15 feet away. +9 to hit  Medium or smaller creatures only.  Thrown creature is knocked prone.  Throw deals 15 damage to the thrown creature and another creature if hit. If creature is thrown at someone it can choose a square adjacent to the target to land in.

If a large rock, log, or other object is present, he can use his action to pick it up and it can count as a "grappled creature" for Throw.