ESO Arx Corinium Dungeon Guide | All About Mechanics

Arx Corinium – Dungeon Guide

Venture into Arx Corinium, a lush but deadly dungeon filled with serpent-spawned dangers and unique boss mechanics. Watch the full walkthrough and strategy guide here: ▶ View the Arx Corinium Dungeon Guide

Information
Dungeon Overview
Quest
Encounters
Trash Enemies
Boss Encounters
Incentives
Gear
Achievements
Scrying Leads

Dungeon Overview

Location: Shadowfen — Central-Western Region

Group Finder Unlock: Level 18

Recommended for Veteran: CP160

Group Composition: 1 Tank, 1 Healer, 2 DPS

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Quest – Force of Nature

Quest Giver: Sister of Floods (Inside Dungeon)

The abandoned ruins of Arx Corinium are held hostage by the Lamia Queen. Aid the Nereid Sisters to cleanse the fort and restore balance to the swamp.

Completing Force of Nature

Defeat Ganakton the Tempest after speaking to the Sister of Floods, then seek the Sister of the Rain and the Sister of the Waves before confronting the Lamia Queen. Completing the quest grants gold, a Skill Point, and Lamia’s Boon of the Three Sisters, part of the Lamia’s Song set.

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Trash Enemies

Lamia Dominas / Curares – Ranged casters who heal or empower allies; interrupt their abilities where possible.
Giant Snakes – Poison melee attackers that strike quickly; keep them taunted and away from healers.
Lurchers – Heavy-hitting creatures that slam the ground; block or interrupt to avoid knockback.

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Boss Encounters

Arx Corinium features six bosses linked to the Lamia Queen’s corruption of the ruins. Each introduces unique hazards and enemy types that progressively escalate to the final fight.

Fanged Menace

A venomous serpent guarding the swamp entrance to the ruins.

Ganakton the Tempest

A lightning-infused wamasu that patrols the flooded chambers.

Sliklenia the Songstress

A lamia sorceress who fights alongside her serpent pet and emits piercing screams.

Matron Ixniaa

A battle-hardened lamia leader wielding powerful lightning attacks within the ancient hall.

Ancient Lurcher

A reanimated forest guardian infused with shadowfen’s toxic energy.

Sellistrix the Lamia Queen (Final Boss)

The ruler of Arx Corinium herself, commanding the storm and song that enslaved the ruins.

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Gear Sets Found in Arx Corinium

Normal and Veteran modes share three base sets. Veteran drops the Sellistrix Monster Helm from the final boss. .

Lamia’s Song (Light)

(2 items) Adds 657 Critical Chance
(3 items) Adds 1096 Max Magicka
(4 items) Adds 129 Weapon & Spell Damage
(5 items) When you heal an ally, you grant them Minor Aegis for 8 seconds, reducing damage taken from Dungeon monsters by 5%.

Medusa (Heavy)

(2 items) Adds 657 Critical Chance
(3 items) Adds 129 Weapon & Spell Damage
(4 items) Adds 657 Critical Chance
(5 items) Gain Minor Force at all times, increasing Critical Damage done by 10%.

Undaunted Infiltrator (Medium)

(2 items) Adds 657 Critical Chance
(3 items) Adds 1096 Max Stamina
(4 items) Adds 129 Weapon & Spell Damage
(5 items) After casting a Magicka ability, your next Light or Heavy Attack deals an additional 1811 Magic Damage within 10 seconds.

Sellistrix (Monster Set – Veteran Only)

(1 item) Adds 1096 Max Stamina
(2 items) When you deal damage, you create an earthquake under the enemy that erupts after 1.5 seconds, dealing Physical Damage to enemies within 4 meters and stunning them for 3 seconds. (Cooldown: 5 seconds)

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