Path of Exile 2 has already captivated the ARPG community with its dark atmosphere, intricate build customization, and menacing bosses that demand skill, strategy, and adaptability. Among the numerous bosses scattered across its campaign, one of the most memorable encounters in Act Four takes place in the shadowy depths of Wakapanu Island, within a winding, bioluminescent maze known as the Singing Caverns.

Here lurks Diamora, a monstrous angler fish of colossal size whose glowing lure attracts not only unwary prey but also unsuspecting Exiles. Unlike many of the brutish, humanoid bosses you’ve faced earlier, Diamora is a more sinister opponent: it combines deceptive mechanics, suffocating arena design, and relentless waves of smaller threats to test both your preparation and combat instincts. Defeating Diamora is more than just survival—it’s the key to securing another crucial fragment of the weapon you’ll need to confront The Beast, the looming endgame threat driving Path of Exile 2’s central story.

This guide will walk you through everything you need to know about Diamora: her lore, her mechanics, how to counter her lure, and the best strategies to emerge victorious in this grueling underwater nightmare.

The Lore Behind Diamora

The campaign of POE2 Currency emphasizes not only combat but also the lore woven into its environments. Diamora is not just a random beast but a guardian of the caverns, steeped in myth by the inhabitants of Wakapanu Island.

According to local legends, Diamora was once a lesser sea creature that fed on scraps beneath the waves. Over centuries, dark corruption from the depths twisted it into a grotesque predator of immense size, its lure glowing unnaturally to tempt the foolish. Her haunting song—the “singing” that gives the caverns their name—is said to be the cries of her past victims, forever echoing through the stone walls.

When you descend into the Singing Caverns, you’ll notice how the environment itself reflects Diamora’s influence. The walls shimmer with eerie bioluminescence, and the waterlogged pathways pulse with strange energy. Everything feels alive and watchful, reminding you that you’re walking into her domain.

Locating Diamora in the Singing Caverns

The Singing Caverns are a maze-like dungeon deep beneath Wakapanu Island. As you progress through Act Four, you’ll be tasked with recovering fragments of a weapon needed to face The Beast. Diamora guards one of these fragments.

The dungeon is filled with amphibious and aquatic enemies that prepare you for what’s coming. These include:

Glowfin Eels – fast-moving mobs that swarm in packs, often trying to flank you.

Cavern Sirens – ranged spellcasters that project sonic waves, softening you up before the boss.

Crustback Guardians – tanky crab-like foes that force you to manage your positioning carefully.

As you fight deeper, the music changes, and the cavern narrows into an expansive, flooded chamber. That’s where you’ll encounter Diamora, her massive silhouette circling just beneath the water before she emerges.

The Arena: Fighting in Claustrophobic Waters

The boss arena plays a massive role in this encounter. Unlike some earlier bosses who give you wide-open spaces to maneuver, Diamora’s lair is restrictive and unnerving.

The ground is partially submerged, slowing your movement slightly unless you invest in movement-speed bonuses.

Pillars of coral and rock scatter the chamber, offering cover but also obstructing vision.

Bioluminescent plants pulse with light, sometimes concealing Diamora’s lure until it’s too late.

The design ensures you never feel entirely safe. You’re forced to balance aggression with careful positioning, or else risk being cornered.

Diamora’s Abilities and Phases

Diamora’s fight is broken into three main phases, each more chaotic than the last.

Phase One: The Lure and Chomp

At the start, Diamora stays submerged, leaving only her glowing lure visible. This lure functions as both a mechanic and a trap:

Lure Beam – If you stare directly at the lure too long (by keeping your character within its glowing radius), your movement speed is drastically reduced, simulating being “hypnotized.”

Sudden Chomp – After luring you in, Diamora lunges upward with a devastating bite that can one-shot unprepared players.

Counterplay:

Avoid standing in the glowing radius for more than a second.

Use movement skills (Dash, Blink Arrow, or Flame Dash) to reposition if she starts circling below.

Keep your camera awareness high—she telegraphs her chomp with ripples in the water.

Phase Two: Adds and Tentacle Slam

Once you bring Diamora to 70% health, she enrages and summons waves of minions.

Spawn of Diamora – Small fish-like creatures that explode on death, forcing you to maintain distance.

Tentacle Slam – Diamora slams massive tendrils onto the arena floor, creating shockwaves. Standing near impact zones is fatal.

Counterplay:

Use AoE skills to quickly clear minions before they overwhelm you.

Watch the ground indicators carefully—tentacle shockwaves spread out in patterns you can learn.

Consider totems or minions to distract adds while you focus on Diamora.

Phase Three: Frenzy and Darkness

At 30% health, Diamora dives into a frenzy. The arena darkens, lit only by her bioluminescent lure. She gains two devastating new abilities:

Whirlpool Pull – Creates vortexes that drag you toward her jaws. Without a mobility skill ready, you’ll be sucked into certain death.

Dark Pulse – Sends waves of darkness that extinguish light sources in the arena, making navigation disorienting.

Counterplay:

Save mobility cooldowns specifically for escaping whirlpools.

Stay close to coral pillars—they block line-of-sight for some attacks and give you reference points in the darkness.

Burst damage becomes vital here. The longer this phase lasts, the harder it gets.

Recommended Builds and Strategies

For Ranged Builds

Maintain maximum distance to avoid being baited by the lure.

Skills like Tornado Shot, Arc, or Freezing Pulse let you punish Diamora even while she lurks underwater.

Prioritize kiting—never let yourself get cornered in the arena’s tighter sections.

For Melee Builds

This is a high-risk, high-reward fight for melee players.

Use leap-based skills (Leap Slam, Shield Charge) to dart in and out quickly.

Save defensive flasks for her chomp and whirlpool pulls. Armor and block-heavy builds fare better here.

For Summoner Builds

Diamora’s adds can wipe minions quickly, but having an army helps keep her attention divided.

Minions will also continue damaging her during her lure phases, when you might need to retreat.

Consider spectres with cold abilities to slow her down.

Flask and Gear Recommendations

Quicksilver Flask – Essential to counteract movement slowdown in water.

Stibnite Flask – Creates smoke clouds, giving you temporary reprieve from adds.

Life Leech on Hit – Sustain is crucial against the adds in phase two.

Chaos Resistance – Some of Diamora’s attacks deal corrupted energy damage, not just physical.

Gear that enhances movement speed, resistances, and mobility cooldown recovery will significantly ease the difficulty.

Rewards for Defeating Diamora

Once you finally slay Diamora, her enormous body collapses into the cavern, shaking the ground. Among her remains lies one of the fragments of the weapon needed to fight The Beast. This piece is uniquely engraved, glowing faintly with the same corrupted energy that fueled Diamora’s lure.

In addition, Diamora drops:

High-level rare gear suitable for Act Four progression.

A chance at unique items themed around aquatic or light-based mechanics.

Currency shards and crafting orbs, as with other bosses.

But the true prize is narrative progress. With Diamora defeated, you’re one step closer to assembling the only weapon capable of confronting The Beast, tying this fight directly into the overarching story.

Tips for First-Time Players

Do not rush in blind. Take time to study the arena before triggering the fight.

Patience is key. Diamora’s fight punishes recklessness. Wait for openings rather than going all-in.

Bring mobility skills. Even one can make the difference between life and death.

Learn her rhythms. Every attack has a tell—recognize the water ripples, light flickers, or sound cues.

Why Diamora Stands Out as a Boss Fight

Diamora represents one of the best examples of Path of Exile 2’s design philosophy: blending lore, environment, and mechanics into a cohesive, memorable encounter. She’s not just a health sponge or a DPS check—she’s a predator whose fight feels alive.

The psychological tension of her glowing lure plays with player instincts.

The claustrophobic arena amplifies fear and forces adaptation.

The multi-phase structure ensures the fight escalates without feeling repetitive.

For many players, Diamora will be the first “wall” of difficulty in Path of Exile 2, teaching vital lessons in mobility, awareness, and resource management.

Final Thoughts

The battle against Diamora, the giant angler fish of the Singing Caverns, is a highlight of Act Four in Path of Exile 2. It combines chilling atmosphere, clever mechanics, and escalating danger into a fight that demands both mechanical skill and strategic planning. More than just another boss, Diamora serves as a narrative and mechanical milestone buy Path of Exile 2 Currency, proving whether you’re ready for the challenges ahead as you march closer to facing The Beast.

Defeating her is not simply about gaining loot—it’s about mastering the balance between temptation and survival, resisting the lure of certain death, and showing that even in the darkest depths of Wraeclast, you can endure.