The Burning Monolith: Path of Exile 2's Endgame Challenge

The Burning Monolith, a unique map location in Path of Exile 2's Atlas of Worlds, resembles a Realmgate but presents a significantly greater challenge. Accessing it requires three Crisis Fragments, each obtained by conquering a Citadel – an exceptionally rare and difficult map node.

Unlocking the Arbiter of Ash

The Burning Monolith is the lair of the Arbiter of Ash, the game's toughest pinnacle boss. Your first attempt to activate the Monolith's door initiates "The Pinnacle of Flame" quest, branching into three sub-quests: Ezomyte Infiltration (Iron Citadel), Faridun Foray (Copper Citadel), and Vaal Incursion (Stone Citadel). Completing these Citadels yields the three necessary Crisis Fragments. Once acquired, use them at the Monolith's altar to unlock the Arbiter of Ash encounter. Ensure your character build is optimized before facing this incredibly powerful boss with devastating attacks and immense health.

The Citadel Hunt: A Test of Patience

Path of Exile 2 features three Citadels: Iron, Copper, and Stone, each guarded by a unique boss. The Crisis Fragment for each Citadel is the boss's reward. The primary difficulty lies in locating these Citadels.

Citadel attempts are one-time only. Their placement on the randomly generated Atlas is unpredictable, defying easy strategies. However, community observations suggest these approaches:

1. Directional Progression: Choose a direction on the Atlas and systematically explore until you find a Citadel. Unlocking Towers provides a broader map view.
2. Corruption Tracking: Focus on Atlas nodes exhibiting corruption, often found at the map's edges. Clear these nodes, unlock nearby Towers, and repeat. This method pairs well with the first.
3. Clustered Appearance: Citadels may cluster together. Finding one increases the chance of discovering others nearby.

Citadel hunting is a late-game activity, best undertaken with a fully optimized character build.

Alternative Acquisition: Buying Crisis Fragments

Crisis Fragments, the ultimate goal of the Citadel hunt, are available for purchase on trading websites or through the in-game Currency Exchange. Their rarity makes them expensive, but this option bypasses the arduous hunt.