The Burning Monolith is an end-game activity containing the Arbiter of Ash in Path of Exile 2 (PoE 2). Read on to learn more about the Burning Monolith's pinnacle boss, quest, rewards, and passive tree!

Burning Monolith Pinnacle Boss

The Arbiter of Ash

The Arbiter of Ash is the Pinnacle Boss of the Burning Monolith. To face him, players must collect and use three different Crisis Fragments at the Sealed Passageway in the Burning Monolith. Following this step unlocks the entrance to the pinnacle boss fight.

The Arbiter of Ash Boss Guide

Burning Monolith Quest

Available Once Revealed in the Atlas

The quest for the Burning Monolith is the Pinnacle of Flame. The quest becomes available as soon as the Burning Monolith is revealed in your Atlas Map.

The Pinnacle of Flame Walkthrough

Burning Monolith Rewards

Earn Points for Atlas Tree

When you gather all three keys, you will be able to take on the Pinnacle Boss of the Atlas. Defeating him rewards you with unique items and points you can use for the Burning Monolith section of your Atlas Tree.

The Burning Monolith Atlas Passive Tree

List of The Burning Monolith Atlas Passives

#	Passive	Effects
1	Arbiter Difficulty	• +1 to Arbiter Difficulty
2	Ancient Relics	• 25% increased Rarity of Items dropped by the Arbiter
3	The Way Forward	• Arbiter drops 3 additional tier 15 Waystones
4	Central Terraformer	• Arbiter drops an additional Corrupted Rare Precursor Tablet
5	Modular Servant	• Arbiter has 10% chance to drop a valuable Socket Currency
6	Lost Techniques	• Arbiter has 10% chance to drop a valuable Gem
7	Witness to History	• Arbiter has 20% chance to drop an additional Unique item

The Burning Monolith passive tree is actually called the Arbiter Tree in the Atlas passive tree.

Recommended Burning Monolith Passives

Passive	Effects
Ancient Relics	• 25% increased Rarity of Items dropped by the Arbiter
Witness to History	• Arbiter has 20% chance to drop an additional Unique item
Modular Servant	• Arbiter has 10% chance to drop a valuable Socket Currency

The best Burning Monolith Passives are Ancient Relics, Witness to History, Modular Servant. This is due to their bonuses that allow you to gain higher rarity gear which is extremely important for your builds and if you intend selling them.

Burning Monolith Explained

High Difficulty Area That Contains the Pinnacle Boss

The Burning Monolith is considered to be the most difficult area in both the Atlas of Worlds and in the entirety of Path of Exile 2. This is also where players can encounter the Pinnacle Boss.

Requires Three Keys to Enter

Crisis Fragments and Locations
Ancient Crisis Fragment (Iron Citadel)	Faded Crisis Fragment (Copper Citadel)	Weathered Crisis Fragment (Stone Citadel)

There are enemy factions that will be fighting to get inside the Monolith, with each of the faction's leader possessing a key. A faction will be led by an Uber Act Boss, and in order to defeat him you'll first have to deal with his lieutenants in the areas nearby.

Do note that failure to take out either lieutenants or even the leader himself will cause the faction to move away from the area, requiring you to find them once again.

Citadel Locations and Guide

Keys Can be Obtained via Trade and Currency Exchange

Aside from grinding, the Crisis Fragments required to enter the Burning Monolith can also be obtained through Trade and the Currency Exchange system.

Path of Exile 2 Related Guides

Atlas of Worlds Endgame Explained

Atlas Guides