Frost Worm

Name	Frost Worm
Sorted Name	Frost Worm
Family	Frost Worm
Size and Type	Huge Magical Beast (Cold)
Hit Dice Count	14
Hit Dice	14d10+70 (147 hp)
Random Hit Points	14d10+70 - 70
Initiative	+4
Speed	30 ft. (6 squares), burrow 10 ft.
Armor Class	18 (-2 size, +10 natural), touch 8, flat-footed 18
Base Attack/Grapple	+14/+30
Attack	Bite +21 melee (2d8+12 plus 1d8 cold)
Full Attack	Bite +21 melee (2d8+12 plus 1d8 cold)
Space/Reach	15 ft./10 ft.
Special Attacks	Trill, cold, breath weapon
Special Qualities	Darkvision 60 ft., death throes, immunity to cold, low-light vision, vulnerability to fire
Saves	Fort +14, Ref +9, Will +6
Abilities	Str 26, Dex 10, Con 20, Int 2, Wis 11, Cha 11
Skills	Hide +3*, Listen +5, Spot +5
Feats	Alertness, Improved Initiative, Improved Natural Attack (bite), Iron Will, Weapon Focus (bite)
Environment	Cold plains
Challenge Rating	12
Organization	Solitary
Treasure	None
Alignment	Usually neutral
Advancement	15-21 HD (Huge); 22-42 HD (Gargantuan)
Level Adjustment	-
Version	SRD
Sources	System Reference Document
Stat_Block	Frost worm; CR 12; Huge magical beast (cold); HD 14d10+70; hp 147; Init +4; Spd 30 ft. (6 squares), burrow 10 ft.; AC 18 (-2 size, +10 natural), touch 8, flat-footed 18; Base Atk +14; Grp +30; Atk +21 melee (2d8+12 plus 1d8 cold, bite); Full Atk +21 melee (2d8+12 plus 1d8 cold, bite); Space/Reach 15 ft./10 ft.; SA Trill, cold, breath weapon; SQ Darkvision 60 ft., death throes, immunity to cold, low-light vision, vulnerability to fire; AL N; SV Fort +14, Ref +9, Will +6; Str 26, Dex 10, Con 20, Int 2, Wis 11, Cha 11 Skills and Feats: Hide +3*, Listen +5, Spot +5; Alertness, Improved Initiative, Improved Natural Attack (bite), Iron Will, Weapon Focus (bite)

	Frost Worm
	Huge Magical Beast (Cold)
Hit Dice:	14d10+70 (147 hp)
Initiative:	+4
Speed:	30 ft. (6 squares), burrow 10 ft.
Armor Class:	18 (-2 size, +10 natural), touch 8, flat-footed 18
Base Attack/Grapple:	+14/+30
Attack:	Bite +21 melee (2d8+12 plus 1d8 cold)
Full Attack:	Bite +21 melee (2d8+12 plus 1d8 cold)
Space/Reach:	15 ft./10 ft.
Special Attacks:	Trill, cold, breath weapon
Special Qualities:	Darkvision 60 ft., death throes, immunity to cold, low-light vision, vulnerability to fire
Saves:	Fort +14, Ref +9, Will +6
Abilities:	Str 26, Dex 10, Con 20, Int 2, Wis 11, Cha 11
Skills:	Hide +3*, Listen +5, Spot +5
Feats:	Alertness, Improved Initiative, Improved Natural Attack (bite), Iron Will, Weapon Focus (bite)
Environment:	Cold plains
Organization:	Solitary
Challenge Rating:	12
Treasure:	None
Alignment:	Usually neutral
Advancement:	15-21 HD (Huge); 22-42 HD (Gargantuan)
Level Adjustment:	-

A frost worn cannot burrow through stone, but can manage ice and frozen earth. When moving through such hard materials it leaves behind a usable tunnel about 5 feet in diameter.

A frost worm is about 40 feet long, 5 feet in diameter, and weighs about 8,000 pounds.

Combat

Frost worms lurk under the snow, waiting for prey to come near.

They begin an attack with a trill and then set upon helpless prey with their bite.

Trill (Su): 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. The save DC is Charisma-based.

Cold (Ex): 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 (Su): 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. The save DC is Constitution-based.

Death Throes (Ex): 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). The save DC is Constitution-based.

Skills: *A frost worm, due to its coloration and its affinity for burying itself in the snow, has a +10 racial bonus on Hide checks in its native environment.