Carapace Walker

Bite. Melee Attack: +4 to hit, reach 5 ft., # target. Hit: 1d6 + 2 piercing damage.

Leg Pierce. Melee Attack: +5 to hit, reach 10 ft., # target. Hit: 1d6 + 3 piercing damage.  

Poison Spray. After a successful attack against the creature, the creature may react by spraying poison out of its mandible at the player who attacked it. The player must roll a DC 14 constitution saving throw. On fail, they take 1d4 poison damage each turn for three turns, and on success, they take half.

Cuticle Shield. Twice per short rest, the monster may react to an attack roll by raising it's cuticle shield which adds two to its armor class, possibly turning the attack into a miss.