Glaciocula
Gargantuan • Elemental • Neutral
Armor Class 18
Hit Points 227 (13d20 + 91)
Speed 10 ft., burrow 10 ft.
Initiative -3 (7)
| STR | DEX | CON | INT | WIS | CHA |
|---|---|---|---|---|---|
| 26 (+8) | 4 (-3) | 24 (+7) | 10 (+0) | 15 (+2) | 16 (+3) |
Saving Throws Str +13, Con +12
Damage Resistances bludgeoning, piercing, slashing
Damage Immunities cold
Condition Immunities exhaustion, paralyzed, petrified, poisoned
Senses blindsight 60 ft., tremorsense 300 ft., passive Perception 12
Languages Primordial
CR 14 (XP 11,500; PB +5)
Bloodied - Refractive Shell. While bloodied, the glaciocula loses its damage resistances. Additionally, whenever the glaciocula succeeds on a saving throw against a spell, or a spell's attack roll misses it, each creature in a 30-foot emanation originating from the glaciocula is targeted by the following effect. Dexterity Saving Throw: DC 20. Failure: 14 (4d6) force damage.
Frozen Terrain. Strength Saving Throw: DC 20, any creature in a 30-foot emanation on the ground originating from the glaciocula. Failure: The target's speed is reduced to 0 until it or a creature within 5 feet takes an action to break the ice. Failure or Success: The ground in that area is difficult terrain.
Unusual Nature. The glaciocula doesn't require air, food, drink, or sleep.
ACTIONS
Slam. Melee Weapon Attack: +13, reach 20 feet. Hit: 41 (6d10 + 8) bludgeoning damage plus 45 (10d8) cold damage, and the target is knocked prone.
Crystalline Spikes (Recharge 5-6). Constitution Saving Throw: DC 20, each creature in a 100-foot-long, 15-foot-wide line along the ground. Failure: 21 (6d6) piercing damage plus 27 (6d8) cold damage. Success: Half damage.
BONUS ACTIONS
Shell Defense. The glaciocula withdraws into its shell. Until it emerges, it gains a +7 bonus to its AC, is restrained, and a critical hit against it becomes a normal hit. It can emerge from its shell as a bonus action on its turn.
Glaciocula
Gargantuan • Elemental • Neutral
Armor Class 16
Hit Points 181 (11d20 + 66)
Speed 10 ft., burrow 10 ft.
Initiative -3 (7)
| STR | DEX | CON | INT | WIS | CHA |
|---|---|---|---|---|---|
| 24 (+7) | 4 (-3) | 22 (+6) | 10 (+0) | 13 (+1) | 14 (+2) |
Saving Throws Str +11, Con +10
Damage Resistances bludgeoning, piercing, slashing
Damage Immunities cold
Condition Immunities exhaustion, paralyzed, petrified, poisoned
Senses blindsight 60 ft., tremorsense 300 ft., passive Perception 11
Languages Primordial
CR 11 (XP 7,200; PB +4)
Bloodied - Refractive Shell. While bloodied, the glaciocula loses its damage resistances. Additionally, whenever the glaciocula succeeds on a saving throw against a spell, or a spell's attack roll misses it, each creature in a 30-foot emanation originating from the glaciocula is targeted by the following effect. Dexterity Saving Throw: DC 20. Failure: 10 (3d6) force damage.
Frozen Terrain. Strength Saving Throw: DC 18, any creature in a 30-foot emanation on the ground originating from the glaciocula. Failure: The target's speed is reduced to 0 until it or a creature within 5 feet takes an action to break the ice. Failure or Success: The ground in that area is difficult terrain.
Unusual Nature. The glaciocula doesn't require air, food, drink, or sleep.
ACTIONS
Slam. Melee Weapon Attack: +11, reach 20 feet. Hit: 34 (5d10 + 7) bludgeoning damage plus 40 (9d8) cold damage, and the target is knocked prone.
Crystalline Spikes (Recharge 5-6). Constitution Saving Throw: DC 18, each creature in a 100-foot-long, 10-foot-wide line along the ground. Failure: 17 (5d6) piercing damage plus 22 (5d8) cold damage. Success: Half damage.
BONUS ACTIONS
Shell Defense. The glaciocula withdraws into its shell. Until it emerges, it gains a +6 bonus to its AC, is restrained, and a critical hit against it becomes a normal hit. It can emerge from its shell as a bonus action on its turn.
Glaciocula
Gargantuan • Elemental • Neutral
Armor Class 20
Hit Points 333 (18d20 + 144)
Speed 10 ft., burrow 10 ft.
Initiative -3 (7)
| STR | DEX | CON | INT | WIS | CHA |
|---|---|---|---|---|---|
| 28 (+9) | 4 (-3) | 26 (+8) | 12 (+1) | 17 (+3) | 18 (+4) |
Saving Throws Str +15, Con +14
Damage Resistances bludgeoning, piercing, slashing
Damage Immunities cold
Condition Immunities exhaustion, paralyzed, petrified, poisoned
Senses blindsight 60 ft., tremorsense 300 ft., passive Perception 13
Languages Primordial
CR 17 (XP 18,000; PB +6)
Bloodied - Refractive Shell. While bloodied, the glaciocula loses its damage resistances. Additionally, whenever the glaciocula succeeds on a saving throw against a spell, or a spell's attack roll misses it, each creature in a 30-foot emanation originating from the glaciocula is targeted by the following effect. Dexterity Saving Throw: DC 20. Failure: 17 (5d6) force damage.
Frozen Terrain. Strength Saving Throw: DC 22, any creature in a 30-foot emanation on the ground originating from the glaciocula. Failure: The target's speed is reduced to 0 until it or a creature within 5 feet takes an action to break the ice. Failure or Success: The ground in that area is difficult terrain.
Unusual Nature. The glaciocula doesn't require air, food, drink, or sleep.
ACTIONS
Slam. Melee Weapon Attack: +15, reach 20 feet. Hit: 61 (8d12 + 9) bludgeoning damage plus 55 (10d10) cold damage, and the target is knocked prone.
Crystalline Spikes (Recharge 5-6). Constitution Saving Throw: DC 22, each creature in a 150-foot-long, 20-foot-wide line along the ground. Failure: 24 (7d6) piercing damage plus 31 (7d8) cold damage. Success: Half damage.
BONUS ACTIONS
Shell Defense. The glaciocula withdraws into its shell. Until it emerges, it gains a +8 bonus to its AC, is restrained, and a critical hit against it becomes a normal hit. It can emerge from its shell as a bonus action on its turn.
QUICK REFERENCE
USING MONSTER VARIANTS
Monster variants allow the GM to adjust encounters to better match the party’s strength, narrative needs, or world-building logic. A weaker variant may represent a juvenile, wounded, or lesser specimen, while a stronger variant can serve as a leader, champion, ancient creature, or apex predator.
Variants can be used to fine-tune difficulty without changing the core identity of the monster, making them ideal for scaling encounters, reinforcing hierarchy within a faction, or creating memorable boss-style enemies. You can even use the same stat block but different variants in the same encounter if you want.
Design Note. Each monster is primarily balanced around its normal version. Weaker and stronger variants are derived adjustments and may not always preserve every tactical nuance or “feel” of the original creature. GMs are encouraged to review variants carefully and adjust abilities or tactics as needed to best suit their table.