The material below is Open Game Content from a 3PP Source
This large worm's body is muscular and scaly, its mouth a nightmare of row upon row of triangular teeth.
Death Worm (CR 6; 2,400 XP)
N Large magical beast
Init +1; Senses darkvision 60 ft., low-light vision, tremorsense 60 ft.; Perception +11
AC 19, touch 10, flat-footed 18
(+1 Dex, +9 natural, –1 size)
hp 68 (8d10+24)
Fort +9, Ref +7, Will +4
Defensive Abilities corrosive blood, venomous skin; Immune acid, electricity, poison
Speed 20 ft., burrow 20 ft.
Melee bite +11 (2d8+6 plus poison)
Ranged electrical jolt +8 ranged touch (4d6 electricity)
Space 10 ft.; Reach 5 ft.
Special Attacks breath weapon (30-ft. line, 8d6 acid damage, Reflex DC 17 for half, usable every 1d4 rounds)
Str 18, Dex 13, Con 16, Int 3, Wis 11, Cha 5
Base Atk +8; CMB +13; CMD 24
Feats Cleave, Improved Overrun, Iron Will, Power Attack
Skills Perception +11, Stealth –3 (+13 in deserts); Racial Modifiers +16 Stealth in deserts or rocky areas
Environment warm deserts, plains, or hills
Corrosive Blood (Ex) A death worm's blood can corrode metal on contact. If a creature damages a death worm with a piercing or slashing weapon made of metal, the creature's blood deals 3d6 points of acid damage to the metal weapon (unlike most forms of energy damage, this damage is not halved when applied to a metal object, although it does still have to penetrate the metal's hardness). The weapon's wielder can halve the damage the weapon takes by making a successful DC 17 Reflex save. Creatures made of metal that deal slashing or piercing damage to a death worm with a natural attack take 3d6 points of acid damage (a DC 17 Reflex save halves this damage). The corrosive elements of the blood fade 1 round after it leaves the worm's body or the worm dies. The save DC is Constitution-based.
Electrical Jolt (Su) A death worm can fire a jolt of electricity from its mouth as a standard action. The range increment for this ranged touch attack is 60 feet.
Poison (Ex) Bite—injury, or skin—contact; save/ Fort DC 17; frequency 1/round for 6 rounds; effect 1d2 Con damage; cure 2 saves.
Venomous Skin (Ex) A death worm's skin secretes a noxious, waxy substance. This venomous sheen poisons any creature that touches a death worm, either by making a successful attack with an unarmed strike or natural weapon or with a touch attack. A creature that grapples a death worm is also exposed to the creature's venomous skin.
The reclusive death worm is much feared in the deserts, badlands, and steppes in which it dwells, for it brings to a battle multiple harrowing ways of inflicting death upon its foes—acid, lightning, poison, and its ravenous jaws. The creatures are remarkably good at hiding amid the sands and rocks of their favored terrain, and devilishly efficient at selecting foes that they can easily kill. This combination makes stories of these creatures hard to confirm, and in most urban centers, common wisdom is that the tales of death worms are fabrications—attempts to impress city folk or hallucinations born of too much drink.
A death worm is 15 feet long and weighs 1,200 pounds—although rumors of much larger death worms persist.