Ath-Thorn, Eldest of the Eldwardens

Level 100 Plant Boss Superboss

Ath-Thorn was the first of the Eldwardens to wake and is to be the last to sleep. In the Age of Roots it walked the whole of the land in a single season and named every hill; now it does not walk, and the Thornwold has grown up around its feet. It is not wicked. It is only very old, and it has forgotten that men are not weeds.

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: Physical
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: 22 (game units; higher is faster)
XP when killed: 150,000 at level 100
Element: None (physical creature)
Family: Plant

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
normal	normal	normal	normal	normal	normal	normal

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

Hard enrage after 600 s of combat (×3 damage, ×1.4 speed, attacks ×2 as often)
Nova: Poison nova around itself (radius 2, ×1 damage), every 11s
Rifts: 4 marked patches (radius 1) erupt around you after a 1.4s warning, ×1.3 poison damage, every 9s
Pull: pull (range 9, 5 cells) after a 1.1s warning, ×0.4 damage, every 15s
Below 66% HP – "Ath-Thorn wakes fully. The forest stirs at its call.":
Summons waves of Treant, Forest Spider (2 each, up to 4 alive), every 35s
Hazard pools: 4 pools (radius 7) on the ground, 3% of your max HP per second of magic damage, after a 2s warning, every 1s
Knockback: knockback (range 2, 4 cells) after a 1s warning, ×0.6 damage, every 13s
Below 33% HP – "Ath-Thorn's bark splits and sap like fire runs out.":
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 poison damage, every 7s
Enrage: enrages below 100% HP (×1.3 damage, ×1.2 speed)

Where to find it

Dark Forest (L100–100)

Superboss: roams/sleeps at (329, 673) in Dark Forest – Asleep in the oldest part of the Thornwold, among trees older than the kings.; respawns every 90 minutes.
Appears via lair.

Drops

Drop	Chance per kill	Rarity / type	Notes
Gold	100%	Currency	6000-12000
Heartwood of Ath-Thorn	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
Durhask's Tooth	3.0%	Unique
Ulmere's Hex-Ring	3.0%	Unique
Raxathor's Knuckle	3.0%	Unique
The Eye of Vaelsund	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
Any Unique item (a random unique, from any monster)	0.10%	Unique

Loot table superboss_elder_treant: 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.