Aberrant Adaptation: The aberrant horror's body can twist and reshape itself at will, changing body parts into dangerous weapons or useful tools, and regenerate after damage. This ability is represented through adaptations. (these following adaptations would be for a level one transformation)

Eldritch Limb: It can transform one or both of its arms into weapons of thick muscle, sharp claws, or hardened bone.

-It can choose to what type of damage its unarmed attacks will cause, from piercing, bludgeoning, or slashing. Its arms becomes claws, tusks, or bone clubs, depending of the damage type chosen.

-It may roll a d6 in place of normal damage for unarmed strikes.

-Any objects the Aberrant Horror is holding merge into its adaptation or fall to the ground. Its up to the GM's description if the item is too big to merge.

Chitinous Shell: As a bonus action it can develop a hard, crustacean-like shell. When it used this adaptation and it isn't wearing heavy armor, it gains +2 AC. However this reduces its speed by 10 feet.

Unarmed Strike: +4 to hit, reach 5 ft., 1 target. Hit:  5(1d6 + 2) Slashing, piercing or bludgeoning damage.

Dagger: +4 to hit, reach 5 ft., 1 target. Hit: 5(1d4 + 2) Piercing damage (Humanoid Form Only)