Glacier Behemoth — fantasy monster illustration. Glacier Behemoth is a huge beast (Challenge Rating 12).

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Glacier Behemoth

Huge Beast, unaligned

AC
18
HP
172
Speed
20
CR
12

A depression in the ground trails in the wake of this six-legged creature. Aged ice, appearing more like granite, covers the creature’s body._
Slow but Steady. Glacier behemoths earn their name from their resemblance to glaciers, including their slow, relentless pace. Their squat frames help conceal their six legs, reinforcing the notion that they are calved glaciers. Short of chasms blocking its way or the intervention of other glacier behemoths, nothing can stop a glacier behemoth when it moves. Its tough hide combined with its primal intellect render it fearless as it lumbers after its foes.
Bulettekin. Glacier behemoths are arctic relatives to Open Game License


Armor Class 18 (natural armor)

Hit Points 172 (15d12+75)

Speed 20 ft., burrow 20 ft.


STR
24 (+7)
DEX
3 (-4)
CON
21 (+5)
INT
4 (-3)
WIS
14 (+2)
CHA
7 (-2)

Saving Throws Con +9, Wis +6

Skills Athletics +11, Perception +6

Damage Resistances bludgeoning, piercing, and slashing from nonmagical attacks

Damage Immunities cold

Condition Immunities grappled, prone, restrained

Senses darkvision 60 ft., tremorsense 60 ft., passive Perception 16

Languages

Challenge 12


Traits

Ground Disruptor. When the glacier behemoth moves, it can choose to make the area it moves through difficult terrain. When it uses Inexorable Charge, it automatically makes the ground difficult terrain.

Unstoppable. Difficult terrain composed of ice, rocks, sand, or natural vegetation, living or dead, doesn't cost the glacier behemoth extra movement. Its speed can't be reduced by any effect.

Actions

Multiattack. The glacier behemoth makes two bite attacks.

Bite. Melee Weapon Attack: +11 to hit, reach 5 ft., one creature. Hit: 33 (4d12 + 7) piercing damage.

Inexorable Charge. If the glacier behemoth moves at least 10 feet, it can then use this action to continue moving in a 40-foot line that is 15 feet wide. Each creature in this line must make a DC 17 Dexterity saving throw. On a failure, a creature takes 35 (10d6) bludgeoning damage and is knocked prone. On a success, a creature takes half the damage and isn't knocked prone. The glacier behemoth's movement along this line doesn't provoke opportunity attacks.

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Glacier Behemoth — fantasy monster illustrationPrimary
FTTHelper · auto-generated · monster · monster

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Further reading

Jetpack7 Game Master Series
The Game Master's Book of Random Encounters
Jeff Ashworth · 2020
The Game Master's Book of Traps, Puzzles and Dungeons
Jeff Ashworth · 2022
The Game Master's Book of Legendary Dragons
Aaron Hübrich · 2022