This massive creature looks like a gigantic worm with dark blackish-gray flesh and whose body is covered in thousands, perhaps millions, of tiny black bristles. Two oversized mandibles flank its mouth.
Tenebrous Purple Worm CR 15
Speed 20 ft., burrow 20 ft., swim 10 ft.
Melee bite +26 (4d8+13/19–20 plus 2d6 acid and grab), sting +26 (2d8+13 plus poison)
Space 20 ft.; Reach 15 ft.
Special Attacks bristles (DC 27), poison, swallow whole (4d8+19 bludgeoning damage, AC 24, 20 hp)
Str 37, Dex 6, Con 29, Int 1, Wis 8, Cha 10
Base Atk +16; CMB +33 (+37 grapple); CMD 41
Feats Awesome Blow, Critical Focus, Improved Bull Rush, Improved Critical (bite), Power Attack, Staggering Critical, Weapon Focus (bite, sting)
Skills Perception +18, Swim +21
Base template: Tenebrous Creature (CR varies)
Environment Plane of Shadow
The body of a tenebrous purple worm is 5 feet in diameter and 80 feet long, weighing about 40,000 pounds. The creature has a poisonous stinger in its tail.In battle, a tenebrous purple worm forms into a coil 20 feet in diameter, biting with its acidic bite and stinging anything within reach.