PoE 3.27 Best Foulborn Unique Tier List (Keepers Of The Flame)

With the release of Path of Exile 3.27 and the introduction of Foulborn Uniques, many existing uniques have gained new life thanks to the removal or reworking of their most restrictive negative modifiers. This list focuses on unique items that become notably stronger or open up new build opportunities when their downsides are removed. Only global drops are included, as boss uniques may not be consistently obtainable. If you think an item should be moved up or down in tier, consider how a particular build could use it to justify the change.

PoE 3.27 Best Foulborn Unique Tier List

Foulborn Uniques are distinct versions of existing unique items in PoE 1, featuring one or more modifiers replaced with powerful new effects. Many of these new combinations open up builds that were previously impossible, or revive strategies that had been nerfed in the past. Some Foulborn Uniques offer defensive mechanics that were once considered too strong and removed from the core game, while others provide offensive power or unique interactions for niche builds. As a result, they are enabling a wealth of new options, though it's uncertain if these items will remain available after this league. The following ranking will cover the most impactful and interesting Foulborn Uniques in PoE 3.27, focusing on their uses, synergies, and the potential for new build archetypes.

S Tier Foulborn Uniques

These uniques gain exceptional potential through the removal of their most problematic modifiers, often enabling completely new builds or bringing back old, powerful strategies.

Fury Valve: Removal of the split target limitation allows projectile count to apply to the same target, massively boosting single-target damage potential.
Soul Thirst: No longer losing all eaten souls upon flask use vastly improves Soul Eater builds, making them much smoother to play.
Thief's Torment: If the "cannot use other rings" mod is removed, this ring becomes extremely valuable for its life and mana sustain.
The Fourth Vow: Phys damage no longer bypassing ES allows for tanky hybrid or ES-based builds that previously couldn't use this unique effectively.
March of the Legion: Removing Divine Blessing Support restriction unleashes powerful aura setups with more flexibility.
Abyssus: If the increased physical damage taken is gone, this helmet becomes a top-tier damage option with much less risk.
The Bringer of Rain: Removing the "cannot use chest armour" mod lets you combine its powerful helmet mods with any chest, dramatically increasing build options.

A Tier Foulborn Uniques

These uniques offer strong synergies or build enablers with their major downsides gone, making them great choices for certain archetypes.

Ungil's Harmony: Without the crit damage penalty, this amulet is a strong crit multiplier option.
The Primordial Chain: Removing the minion restriction or the less golem damage mod makes this ideal for golem builds.
Marylene's Fallacy: Lifting the crit chance penalty boosts its usability for crit builds.
Nevalius Inheritance: If the less flask effect is gone, this belt is a strong flask utility piece.
Umbilicus Immortalis: Eliminating the "flask effects do not apply to you" transforms it into a flask powerhouse.
Emberwake: If less burning damage is removed, this ring supercharges ignite builds.
Ming's Heart: No more reduced ES or life makes it a powerful chaos resistance and damage ring.
Kaom's Heart: Removal of the no socket drawback makes it extremely attractive for high-life builds.
The Coming Calamity: If reservation is reduced, this chest is a top pick for herald builds.
Eternal Damnation: With the max res penalty gone, this amulet is much safer defensively.
Gruthkul's Pelt: Removing the spell skill restriction brings this chest back for hybrid builds.
Victario's Influence: Lifting the Generosity support limitation allows for versatile aura stacking.
Kaom's Spirit: If life regen applies, this glove is a great leech or regen option.
Wilma's Requital: Without Ancestral Bond, this helmet supports totem and non-totem builds.
Malachai's Loop: No longer losing power charges helps maintain high charge uptime.
Saffel's Frame: Removing the attack block restriction turns it into a well-rounded shield.
Void Battery: Without reduced spell damage, it's a top-tier spellcaster weapon.
The Grey Spire: Adding sockets opens up more aura or curse stacking possibilities.
Mon'tregul's Grasp: If the zombie limit is lifted, it becomes a top minion weapon.

B Tier Foulborn Uniques

These items become notably improved with their negative mods gone but may be more niche or limited in scope.

Lightning Coil: Removal of the -60% lightning resistance makes it easier to cap resists while gaining the powerful phys-to-light conversion.
The Aylardex: No more reduced crit per power charge boosts its power for charge-stacking builds.
The Ephemeral Bond: Removing shortened power charge duration helps sustain charges for longer.
Ryslatha's Coil: If minimum phys damage is no longer reduced, this belt greatly increases DPS consistency.
Immortal Flesh: Without the negative resistances, it's a strong life and regen belt.
Andvarius: Removing the negative ele res makes it a great magic find ring.
Prospero's Protection: Restoring armour makes it a tankier option.
Romira's Banquet: If you don't lose power charges on crit, this ring works for power charge stacking.
Kiara's Determination: Removing reduced flask duration means better flask uptime.
Greed's Embrace: No movement speed penalty makes it a solid loot and defence chest.
Blunderbore: Lower strength requirement makes it easier to equip.
Brass Dome: If strength gives max life again, it's a solid tank chest.
The Rat Cage: Removing fire-to-phys convert makes it a safer unique.
Queen of the Forest: Without move speed penalty, it's a top-tier speed chest.
Kaom's Roots: Adding sockets opens up options for more skills.
Skyforth: Restoring life regen makes it better for sustain.
Voidbringer: No longer losing mana on skill use helps spellcasters.
Volkuur's Guidance: No more poison duration penalty improves poison builds.
Starkonja's Head: No damage penalty on low life makes it safer.
Mindspiral: Leeching mana again makes it good for sustain.
Mind of the Council: No mana loss on attack is a big buff for mana builds.
Emperor's Vigilance: No longer bypassing ES on unblocked hits boosts defence.
Marohi Erqi: No attack speed reduction means better DPS.
Kongor's Undying Rage: Crits dealing extra damage again increases its appeal.
Cold Iron Point: Being able to deal elemental damage opens up hybrid builds.