Frost Worm
Challenge Rating: 12
Size: Huge
Type: Magical Beast (Cold)
Initiative: +4
Defense
Hit Points: 147 (14HD)
Armor Class: 18 (-2 size, +10 natural), touch 8, flat-footed 18
Saves: Fort +14 Ref+ 9 Will +6
Weaknesses: Fire
Offense
Speed: 30 ft. (6 squares), burrow 10 ft.
Base Attack: +14
Melee: Bite +21 melee (2d8+12 plus 1d8 cold)
Ranged: –
Special Attacks: –
Sanity Effects: First Encounter 2/1d8+1
Statistics
Abilities: STR 26, DEX 10, CON 20, INT 2, WIS 11, CHA 11
Skills: Acrobatics +4, Athletics +10, Awareness +7, Endurance +5, Knowledge N/A, Persuasion+0, Spellcraft +0, Survival +0, Thievery +0
Talents: 4 points or recommended; Alertness, improved initiative, Weapon Focus (Bite), Unbreakable Will, Greater Weapon Focus (Bite)
Special Qualities: 15ft Reach, Darkvision 60 ft., death throes, immunity to cold, low-light vision, vulnerability to fire
Ecology
Environment: Cold Plains
Organization: Lone
Treasure: none
Trill
A frost worm can emit a noise that forces its prey to stand motionless. This sonic mind-affecting compulsion affects all creatures other than frost worms within a 100-foot radius. Creatures must succeed on a DC 17 Will save or be stunned for as long as the worm trills and for 1d4 rounds thereafter, even if they are attacked. However, if attacked or violently shaken (a full-round action), a victim is allowed another saving throw. Once a creature has resisted or broken the effect, it cannot be affected again by that same frost worm’s trill for 24 hours. The effect’s caster level is 14th.
Cold
A frost worm’s body generates intense cold, causing opponents to take an extra 1d8 points of cold damage every time the creature succeeds on a bite attack. Creatures attacking a frost worm unarmed or with natural weapons take this same cold damage each time one of their attacks hits.
Breath Weapon
30-foot cone, once per hour, damage 15d6 cold, Reflex DC 22 half. Opponents held motionless by the frost worm’s trill get no saving throw.
Death Throes
When killed, a frost worm turns to ice and shatters in an explosion that deals 12d6 points of cold damage and 8d6 points of piercing damage to everything within 100 feet (Reflex half DC 22).