Vaelsund, the Void Leviathan

Level 100 Demon Void Boss Superboss

The Vael was not destroyed at the Singing. It was folded small, and some of its emptiness kept a shape, and the shape learned to swim. Vaelsund swims through the Rift as a fish swims through water, and where it passes, things are a little less there than they were. It is not angry. It is only hungry, as an empty cup is hungry.

Stats

Level: 100 (data base level 100; monsters are rescaled to the level of the spawner they come from)
Hit points: 416,000 at level 100
Damage: 60–104 per hit (×6.52 in combat before your armour: ≈ 391–678)
Damage type: Magic
Armor class (defence): 180 (blocks that share of your weapon damage: AC / (AC + 100 + 8 × your level), max 60%; spells ignore AC)
Accuracy (hit): 125 (its chance to hit you = 80% + 1% × (accuracy − your AC), 10–95%)
Attack speed: one attack every 1.6 s
Move speed: 42 (game units; higher is faster)
XP when killed: 150,000 at level 100
Element: Void
Family: Demon

Stats by spawn level

Level	HP	Damage	Hit (×combat mult)	AC	Accuracy	XP
100	416,000	60–104	391–678	180	125	150,000

Resistances & weaknesses

Fire	Ice	Poison	Earth	Storm	Holy	Dark
−20% damage	−20% damage	−20% damage	−20% damage	−20% damage	−20% damage	−20% damage

Derived exactly as the game does (elemental_mult): same element ×0.75, opposite element ×1.5, Void creatures ×0.8 to everything. Physical damage is reduced by AC instead.

Abilities

Void creature
Its blows deal magic damage
Hard enrage after 600 s of combat (×3 damage, ×1.4 speed, attacks ×2 as often)
Soul drain: if you stay 2+ tiles away for 4s it drains 3.5% of your HP per 1s and heals itself (range 14)
Rifts: 4 marked patches (radius 1) erupt around you after a 1.4s warning, ×1.3 magic damage, every 9s
Blinks 2–3 tiles after a 0.8s warning, every 12s, then casts a nova (radius 2, ×1 damage)
Below 66% HP – "Vaelsund swims through the emptiness and the Rift widens.":
Sweeping beam (8 tiles long, 120° arc over 2.4s), ×0.5 magic damage, every 13s
Pull: pull (range 9, 5 cells) after a 1.1s warning, ×0.4 damage, every 15s
Summons waves of Void Wraith, Void Walker (2 each, up to 4 alive), every 35s
Below 33% HP – "Vaelsund remembers that it was once everything.":
Hazard pools: 5 pools (radius 7) on the ground, 4% of your max HP per second of magic damage, after a 2s warning, every 1s
Rifts: 5 marked patches (radius 1) erupt around you after a 1.4s warning, ×1.3 magic damage, every 7s
Enrage: enrages below 100% HP (×1.3 damage, ×1.2 speed)
Resists every element by 20%, no weakness

Where to find it

Void Rift (L100–100)

Superboss: roams/sleeps at (983, 507) in Void Rift – It swims through the Void Rift as a fish swims through water.; respawns every 90 minutes.
Appears via lair.

Drops

Drop	Chance per kill	Rarity / type	Notes
Gold	100%	Currency	6000-12000
The Eye of Vaelsund	100%	Unique
Supreme Health Potion	100%	Common	x3-5
Frostbrand	5.0%	Unique
The Glacier Crown	5.0%	Unique
Fang of Platino	5.0%	Unique
Gravecaller	5.0%	Unique
Stormstring	5.0%	Unique
Aegis of the Tide	5.0%	Unique
Crown of Sundmark	5.0%	Unique
Band of Eternity	5.0%	Unique
Sundrax's Scale	3.0%	Unique
Heartwood of Ath-Thorn	3.0%	Unique
Durhask's Tooth	3.0%	Unique
Ulmere's Hex-Ring	3.0%	Unique
Raxathor's Knuckle	3.0%	Unique
Isserath's Fang	3.0%	Unique
Kaelith's Crown	3.0%	Unique
Equipment (random base, tier and quality)	100%	Normal / Magic / Rare / Legendary	better quality +2; odds per piece: Normal 70%, Magic 22%, Rare 7.0%, Legendary 1%
Spell Tome (random spell, tier up to its level)	100%	Tome
Void Token	100%	Common	x3-3
Any Unique item (a random unique, from any monster)	0.10%	Unique

Loot table superboss_void_leviathan: 1 roll per kill. Equipment tier follows monster level (level 100 → tier 9, Voidsteel; ±1 tier 10% of the time). Champions roll one extra gear roll with ×4 gear chance. Chances are the in-game Bestiary rates (Bestiary.drop_table); set pieces and uniques are the global 1% / 0.10% rates.

Quests

No quest asks you to hunt this creature.