Ulutiu, The Eternal Sleeper — CR 31 Avatar Stat Block

The Avatar of Ulutiu

Large giant (avatar), lawful neutral

Armor Class: 26 (icebound hide)
Hit Points: 640 (40d12 + 380)
Speed: 40 ft., swim 80 ft.

STR	DEX	CON	INT	WIS	CHA
30 (+10)	24 (+7)	29 (+9)	26 (+8)	28 (+9)	30 (+10)

Saving Throws: Str +19, Dex +16, Con +18, Int +17, Wis +18, Cha +19
Skills: Insight +19, Perception +19, Survival +19
Damage Resistances: psychic; bludgeoning, piercing, and slashing from magical attacks
Damage Immunities: cold, poison; bludgeoning, piercing, and slashing from nonmagical attacks
Condition Immunities: charmed, frightened, paralyzed, poisoned
Senses: truesight 120 ft., passive Perception 28
Languages: all, telepathy 120 ft.
Challenge: 31 (155,000 XP)
Proficiency Bonus: +9

Traits

Innate Spellcasting. Ulutiu’s spellcasting ability is Charisma (spell save DC 27, +19 to hit with spell attacks). He requires no components.

At will: control water, ice storm, sleet storm, wall of ice
3/day each: control weather, foresight, power word stun, time stop
1/day each: imprisonment, mass heal, wish

Legendary Resistance (3/Day). If Ulutiu fails a saving throw, he can choose to succeed instead.

Magic Resistance. Ulutiu has advantage on saving throws against spells and other magical effects.

The Sleeper Wakes (Mythic Trait; 1/Day). When Ulutiu is first reduced to 320 hit points or fewer, his eyes open and he regains 160 hit points. For 1 minute, hostile creatures that start their turns within 60 feet take 18 (4d8) cold damage and have their speed halved.

Actions

Multiattack. Ulutiu makes three Harpoon of the Cold Sea attacks. He can replace one attack with Glacial Pressure (Recharge 5–6).

Harpoon of the Cold Sea. Melee Weapon Attack: +19 to hit, reach 20 ft., one target. Hit: 32 (4d10 + 10) piercing damage plus 36 (8d8) cold damage. The target is tethered and cannot move more than 20 feet from Ulutiu until it succeeds on a DC 27 Strength check as an action.

Glacial Pressure (Recharge 5–6). Each creature in a 60-foot cone makes a DC 27 Constitution saving throw, taking 55 (10d10) cold damage and becoming petrified in ice until the end of its next turn on a failure, or taking half as much on a success.

Reactions

Preserved in Ice. When a creature within 60 feet would drop to 0 hit points, Ulutiu encases it in ice at 1 hit point. It is incapacitated and immune to damage until the end of its next turn.

Legendary Actions

The avatar can take 3 legendary actions, choosing from the options below. It regains spent legendary actions at the start of its turn.

Icebound Pull. Ulutiu pulls a tethered creature up to 30 feet and makes one Harpoon attack.

Dream of Winter (Costs 2 Actions). One creature within 90 feet makes a DC 27 Wisdom saving throw or falls unconscious until the end of its next turn.

Crack the Shelf (Costs 2 Actions). A 60-foot line fractures; creatures there make a DC 27 Dexterity saving throw or take 36 (8d8) bludgeoning damage and fall prone.

Lair Actions

On initiative count 20 (losing initiative ties), the avatar uses one lair action. It cannot use the same option two rounds in a row.

Steal the Warmth. Each hostile creature loses resistance to cold and cannot regain hit points until next round.

Ice Remembers. Ulutiu repeats one action taken by a creature in the lair during the previous round.

Drifting Floe. Three 20-foot-square sections of ground move up to 40 feet, carrying occupants.

Mythic Actions

The avatar can take 3 mythic actions per day, using one option at a time. It regains spent uses at dawn.

Deep Dream. Ulutiu becomes invisible until he attacks or the end of his next turn.

Calving Strike (Costs 2 Actions). Ulutiu makes one Harpoon attack; on a hit, the target and creatures within 10 feet take 27 (6d8) cold damage.

Polar Night (Costs 3 Actions). Each hostile creature within 90 feet makes a DC 27 Constitution saving throw, taking 72 (16d8) cold damage and becoming blinded until the end of its next turn on a failure.

Introduction

Ulutiu, The Eternal Sleeper, governs glaciers, polar environments, arctic dwellers. The sleeping Father of the Giants’ Kin lies beneath the Great Glacier, his enchanted ice necklace sustaining the polar realm and shaping the dreams of northern peoples.

Arctic hunters, sailors, shamans, and scattered giant-kin traditions venerate him. His clergy preserves clan memory, protects subsistence grounds, and teaches endurance without waste in places where a single mistake kills.

The god sends an avatar through a waking dream when the Great Glacier fractures, when his necklace is threatened, or when an arctic people faces erasure. This is a killable vessel of divine will, not the god’s complete being, and its defeat changes the crisis without ending the faith behind it.

Physical Appearance

Ulutiu appears as a broad arctic giant with blue-gray skin, closed or half-open eyes, and fitted blue-white hide armor. His ice-crystal necklace rests against his chest, and he grips a long barbed harpoon.

His beard is cut short and crusted with solid ice. He speaks as if from deep sleep; frost forms only where his hands or feet touch, never as a surrounding cloud.

Roleplaying the Avatar

Ulutiu is slow, mournful, and protective. He remembers vanished clans more clearly than present politics and expects every resource to justify its cost.

Speak in the present tense about ancient people.
Count food, fuel, and lives before approving a plan.
Close the eyes while listening.
Offer shelter before questions.
Wake fully only when the glacier or necklace is threatened.

Use in a Campaign

The Sleeper Turns

A change in Ulutiu’s dream cracks the Great Glacier toward inhabited lands.

The Warm Winter

A cult steals one crystal from his necklace to save a southern city, destabilizing the polar sea.

Clan Without Memory

An arctic people loses every ancestor’s name and asks the avatar to dream them back.

Harpoon of the Cold Sea

The divine weapon pins a leviathan beneath the ice; removing it saves a trapped expedition and frees the beast.

Lairs

Ulutiu’s lairs preserve and pressure. Sound travels through ice, warmth becomes a finite resource, and dreams reveal histories buried under moving glaciers.

The Dreaming Shelf

Sleepers walk through past ages while their bodies drift toward a crevasse.

The Necklace Cavern

Each ice crystal sustains one region’s climate.

Cold-Sea Anchorage

Ships frozen in different centuries share the same harbor.

Hall of the Last Hearth

The fire burns only while visitors recite a true memory of someone dead.

Shared References

Open a reference for its canonical description and related entries.