Crystalline Mandibles. The caterprism’s mandibles ignore resistance to slashing damage. In addition, when the caterprism attacks a creature with at least one head with its bite attack and rolls a natural 20 on the attack roll, it cuts off one of the creature’s heads. The creature dies if it cannot survive without the lost head. A creature is immune to this ability if it is immune to slashing damage, doesn’t have or need a head, has legendary actions, or the GM decides that the creature is too big for the head to be cut off with this attack. Such a creature instead takes an extra 27 (6d8) slashing damage from the hit.

Tunneler. Caterprism can burrow through solid rock at 5 feet per round leaving a 5 foot-wide, 8-foot-high tunnel in its wake.

Actions

Multiattack. The caterprism makes one bite and two claw attacks.

Bite. Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 14 (2d8 +5) slashing damage. If the caterprism scores a critical hit, it rolls damage dice four times, instead of twice.

Claws. Melee Weapon Attack: +8 to hit, reach 5 ft., one target Hit: 16 (2d10 + 5) slashing damage.

Crystal Breath Recharge (5–6). The caterprism spews forth a crystalline silk-like substance in a 30-foot cone that instantly hardens into razor-sharp crystalline spears. Each creature in that area must make a DC 15 Dexterity saving throw, taking 28 (8d6) piercing damage on a failed save, or half as much damage on a successful one.

large

elemental

cr7

tome-of-horrors

---