Last Epoch Lightless Arbor Dungeon: How To Enter, Complete & Rewards

Dungeons represent a distinctive aspect in Last Epoch, serving as challenges that test players' skill and adaptability due to their inclusion of formidable enemies, bosses, and intricate mechanics that require thorough examination and mastery. Among these dungeons is the Lightless Arbor, notable for its unique features, which players should be acquainted with before undertaking the challenge.

For players seeking guidance in navigating this particular dungeon, we have compiled the following guide to assist you in unlocking the dungeon, understanding how to navigate through it, and revealing the rewards awaiting you upon successful completion. Without further delay, let's delve into the details.

How To Locate and Unlock the Lightless Arbor Dungeon in Last Epoch

The Lightless Arbor dungeon is situated in the Last Refuge area of the Ruined Era. To reach it, simply travel to The Surface waypoint and proceed to the northern entrance leading to The Shrouded Ridge. Upon reaching The Shrouded Ridge, head directly north until you arrive at the entrance to the Lightless Arbor.

Now that you know the route to the dungeon, understanding how to unlock it is crucial, accomplished through the acquisition of Lightless Arbor Keys. These keys can be randomly dropped by enemies or specifically farmed from Timeline Bosses and the Arena of Champions (although the Arena is not recommended due to its low drop rate).

How To Clear Lightless Arbor Dungeon in Last Epoch

Each dungeon within Last Epoch introduces a distinctive mechanic, and the Lightless Arbor dungeon, aptly named, is shrouded in darkness. To navigate this dungeon, players must utilize the Burning Amber attached upon entry and employ the dungeon ability called "Illumination." The Amber serves to illuminate the surroundings, aiding in navigating the perilous tunnels within.

Outside the Amber's illumination, enemies deal significantly more damage and are more resistant. Players can relocate the Amber to a target location and retrieve it by activating the Illumination ability. This ability not only targets enemies but also serves to ignite pyres, crucial for dungeon progression and defeating the boss (detailed further in the boss section below).

While the Burning Amber can remain attached, being hit diminishes its illumination (the loss depends on the damage dealt). Illumination can be restored by defeating an Amber Elemental.

Next, the dungeon introduces various enemies, adding complexity as players progress toward the boss. Rotweavers possess the ability to poison players from a distance with the cooldown-free Weave. Though individually manageable, Rotweavers in groups pose a swift threat.

Rotting Hollows inflict poison with Biting Swarm, deal physical damage with Shockwave, and unleash Frenzied Thorns, a multi-projectile attack applying Poison and Armor Shred. The Lightless Hive incessantly spawns Gloom Stingers, insects causing Poison, while Hollow Spriggans employ Thorn Barrage for distant attacks and unleash the more menacing Poison Cloud.

Amber Elementals, capable of using Fireball and Upheaval, pose additional challenges. Fireball inflicts low Fire Damage with multiple Ignite stacks, while Upheaval delivers moderate Physical and Fire Damage. Considering these enemies is vital, especially as the dungeon layout changes with each run. However, by remaining vigilant against enemies and progressing to one of the dungeon's two doors, players can navigate successfully.

Reaching these doors leads to the next floor, randomized with enemies and blockades. Clearing these obstacles eventually leads to the boss room, consistently housing the boss of the Lightless Arbor dungeon, The Mountain Beneath.

How To Beat The Mountain Beneath Boss in Last Epoch

The boss fight against The Mountain Beneath involves several one-shot or near one-shot attacks and encompasses two phases: The Mountain Beneath and Stone Titan's Heart. The primary objective is to burn both pyres with Burning Amber, causing The Mountain Beneath to fall, revealing the entrance to the second phase, where players must defeat Stone Titan's Heart.

Before delving into the strategy, understanding the boss's abilities in each phase is crucial:

The Mountain Beneath Abilities: 

• Rock Fall - A large number of rocks fall from the sky and deal moderate Physical Damage in a circle around their point of impact.
• Rock Fall With summon - A single rock falls from the sky doing moderate Physical Damage in a circle around the impact and also summoning either a Titanspawn or three Mountain's Roots
• Shockwave - The Mountain Beneath slams the ground twice in quick succession dealing very high Physical Damage that will one-shot most players.
• Entangling Roots - A root wall travels from the right side of the arena to the left, dealing low Physical Damage and immobilizing for a short duration.

Stone Titan's Heart Abilities:

• Rock Fall - A large number of rocks fall from the sky and deal moderate Physical Damage in a circle around their point of impact.
• Summon Titanflesh - Four Titanflesh are spawned.
• Spore beam - A beam is fired from Stone Titan's Heart that splits in two and moves in opposite directions, dealing very high Physical and Poison Damage.
• Energy Stone - A large stone circles the Stone Titan's Heart, starting close and traveling outward. The stone deals low Physical Damage.
• Energy Wave - Stone Titan's Heart targets one quadrant of the arena and fires a wave of energy at it that deals low Physical Damage and applies 4 stacks of Poison.
• Entangling Roots - Stone Titan's Heart engulfs the arena with roots, leaving only the area closest to the heart as a safe place.
• Frenzied Thorns - Stone Titan's Heart fires several thorns in the general direction of the player. Each thorn applies multiple stacks of Poison.
• Oblivion - Several mines are placed on the ground that have an area of effect that grows until the mine explodes.

The Mountain Beneath Phase Tips and Tricks

Regarding facing the boss, initiate by heading towards the right Pyre on the far right side of the arena. This positioning simplifies dodging the first round of Shockwave. Destroy the Root Wall blocking the Pyre, place Burning Amber on it, and move toward the center of the arena.

Subsequently, avoid Rockfall, eliminate Titanspawn and Mountain's Roots while awaiting the first Shockwave, and position yourself center-right to dodge the left-side Shockwave. After the left-side attack, move immediately to the left to avoid the right Shockwave.

Once the right Pyre is lit, recall Burning Amber, head to the left Pyre, destroy the Root Wall and place Burning Amber. Return to the center and repeat the process. Swiftly destroying the Pyres minimizes the chance of a second Shockwave. After both Pyres are lit, The Mountain Beneath falls, granting access to the second phase through its mouth.

Stone Titan's Heart Tips and Tricks

In contrast to The Mountain Beneath, Stone Titan's Heart is attackable and must be defeated. Prioritize damaging it while avoiding its more threatening mechanics. The most perilous move in this phase is Spore Beam. Upon spotting the beam, quickly move to the opposite side, considering its coverage expands in later phases.

Energy Wave inflicts substantial Poison Damage. Players can either cleanse the Poison or entirely avoid the mechanic. Be cautious, as sometimes the safe zones for Spore Beam and the damaging area of Energy Wave may overlap, requiring precise timing and decent movement abilities (If your build accommodates it). In this case, cleansing becomes the more reliable option.

Other abilities are well-telegraphed, easy to avoid, or low damage. The critical aspects to manage are Spore Beam and Energy Wave. While the myriad mechanics and distinct phase differences may seem overwhelming, focusing on a few key mechanics enables players to reliably defeat this boss. Keep these in mind, and success in tackling this challenging encounter will be within reach.

Lightless Arbor Dungeon Rewards

The dungeon yields valuable rewards, including items from The Vaults of Uncertain Fate, boss-specific Uniques, and dungeon modifier rewards. Upon defeating The Mountain Beneath and progressing to the next area, a door leading to the Vaults appears. Interacting with this door initiates a series of choices, allowing players to add modifiers for gold if they want.

Upon finalizing modifier choices, opening the vault reveals rewards inside one or more chests, with the explosion of items if numerous modifiers were selected.

Uniques dropped by The Mountain Beneath have tier requirements:

• Helmet (Peak of the Mountain): Drops from tier 1 and higher.
• Boots (Foot of the Mountain): Drops from tier 2 and higher.
• Shield (Face of the Mountain): Drops from tier 3 and higher.
• Body Armor (Core of the Mountain): Drops only from tier 4.

Dungeon modifiers impact overall rewards, applying to both daily and every-door openings. Modifiers range from increased chances for specific Exalted items to enhanced crafting materials, encouraging players to explore different combinations for rare and unique item drops.

In summary, this comprehensive breakdown guides locating, unlocking, and clearing the Lightless Arbor dungeon in Last Epoch, along with the rewards obtained upon completion. We want to thank Maxroll.gg for their valuable insight in clearing this dungeon, and any updates to the dungeon will be promptly reflected in this listing. As always, stay informed with our Last Epoch section for news, guides, and more.