The 0.5 patch for Path of Exile 2 brings a wild new crafting mechanic that completely changes how players approach unique items. Aldur's Legacy, aka Olroth's Legacy, is a freshly added currency that lets you rip a modifier out of a Kalguuran or Ezomyte unique and socket it into another item of the same class. Suddenly, those mediocre uniques sitting in your stash with one ridiculous modifier become extraction fodder for your favorite rares. This guide walks through how Olroth's Legacy crafting system works, which unique bases are worth hoarding, and which modifiers are likely to dominate the league economy.

PoE 2 Olroth's Legacy Runecrafting Guide - Aldur's Legacy Rune List & Best Unique Bases (Modifiers) To Target

Olroth's Legacy is a brand-new rune-style currency arriving with the 0.5 update. Its function is straightforward but powerful: it destroys a target Ezomyte or Kalguuran unique item, extracts one of that unique's modifiers, and converts that modifier into a socketable rune. The rune can then be placed into a far stronger crafted or unique item of the same base class, letting players keep the defining mod of a weak unique while abandoning its underwhelming base stats. Some values will be scaled down (for example, Quill Rain may grant 50% local attack speed instead of 100%), but the system still opens the door to combinations that were previously impossible.

With that overview in mind, the next sections walk through the mechanics, the full base list, and the runes most worth chasing.

How Aldur's Legacy (Olroth's Legacy) Works in PoE 2 0.5?

Before getting into specific items, it helps to know exactly what this Aldur's Legacy (Olroth's Legacy) currency does and what its limits are.

• The Core Process: Aldur's Legacy destroys a Kalguuran or Ezomyte unique, pulls one of its unique modifiers, and converts that modifier into a socketable rune. The rune can then be placed into another item of the same class.

  

• Same Class Restriction: A modifier extracted from a body armor only fits into another body armor. A two-handed mace mod stays on two-handed maces. Bow modifiers stay on bows. You can't take a Quill Rain attack speed mod and put it on a sword.

• Rare and Unique Compatibility: Based on early information from the developers, these runes can be socketed into both rare items and other unique items of the matching class.

• Scaled Values: Some modifier values will be reduced during the conversion process. Without those adjustments, taking the strongest mod off a unique and pasting it onto a top-tier rare with no drawback would be flat-out broken.

• Extraction Randomness: The rune you receive is random from among the unique's modifiers. A unique with five mods gives you roughly a one-in-five shot at the one you actually want, so expect to burn through multiple bases before hitting your target.

With the mechanics settled, the next step is the actual list of confirmed unique bases.

Aldur's Legacy Rune List

An Olroth's Legacy Rune (Aldur's Legacy Rune) can be used on an Ezomyte or Kalguuran Unique item to destroy it and obtain one of its modifiers as a Unique Rune in Path of Exile 2 patch 0.5. The Numbers and Effects can be scaled down (like Quill Rain not giving 100% AS, but maybe 50%). We know that the Runes will have to be placed into the same Base-Types (Mace-Rune into Mace and so on). Below are the 60+ runes (unique bases) expected to be eligible at launch by destroying a unique to make a rune that gains some of its properties:

• Legacy of Kingsguard

• Legacy of Elevore

• Legacy of Starkonja's Head

• Legacy of Crown of Thorns

• Legacy of Erian's Cobble

• Legacy of The Smiling Knight

• Legacy of The Vile Knight

• Legacy of Candlemaker

• Legacy of Deathblow

• Legacy of Legionstride

• Legacy of Wanderlust

• Legacy of The Knight-errant

• Legacy of Oberns Bastion

• Legacy of Dionadair

• Legacy of Mjölner

• Legacy of Twisted Empyrean

• Legacy of Lifesprig

• Legacy of Duality

• Legacy of Tyranny's Grip

• Legacy of The Sentry

• Legacy of Adonia's Ego

• Legacy of Cursecarver

• Legacy of Dusk Vigil

• Legacy of The Blood Thorn

• Legacy of Quill Rain

• Legacy of Ironbound

• Legacy of Keeper of the Arc

• Legacy of A Worthy Foe

• Legacy of Bramblejack

• Legacy of Blackbraid

• Legacy of Edyrns Tusks

• Legacy of Bristleboar

• Legacy of Foxshade

• Legacy of Ashrend

• Legacy of Briskwrap

• Legacy of Irongrasp

• Legacy of The Unleashed

• Legacy of Horns of Bynden

• Legacy of Wings of Caelyn

• Legacy of Ezomyte Peak

• Legacy of Deidbell

• Legacy of Greymake

• Legacy of Northpaw

• Legacy of Trampletoe

• Legacy of Briarpatch

• Legacy of Bushwhack

• Legacy of Wulfsbane

• Legacy of Chernobog's Pillar

• Legacy of Alkem Eira

• Legacy of Oaksworn

• Legacy of Dunkelhalt

• Legacy of Rondel de Ezo

• Legacy of Brynhand's Mark

• Legacy of Trenchtimbre

• Legacy of Hoghunt

• Legacy of Hrimnors Hymn

• Legacy of Brain Rattler

• Legacy of Amor Mandragora

• Legacy of Spiteful Floret

• Legacy of Svalinn

• Legacy of Olrovasara

• Legacy of Serle's Grit

• Legacy of Runeseeker's Call

The eligible pool is divided between Ezomyte-themed uniques and Kalguuran uniques (the latter sourced primarily from the Olroth boss fight and broader Kalguuran content added in 0.5). The pool is expected to grow as 0.5 introduces more Kalguuran content, with rough estimates pointing to between 10 and 20 additional Kalguuran items beyond what is currently known.

Now that the candidate list is on the table, let's get into which modifiers are actually worth chasing.

Aldur's Legacy (Olroth's Legacy) Unique Bases & Modifiers To Target

Aldur's Legacy does not work on every unique in the game. Eligible bases are flagged as either Ezomyte or Kalguuran, two cultural tags woven into PoE 2's lore. Ezomyte items tend to be older, pre-existing uniques tied to Wraeclast's Ezomyte heritage, while Kalguuran uniques are linked to the boss Olroth and the new Kalguuran skills and items debuting in 0.5. Both categories share one trait that matters for runecrafting: most of them are weak items carried by a single absurd modifier, which is exactly what makes the Legacy system so attractive. Pulling a defining mod off a one-alc unique and slotting it into a properly crafted rare or a stronger unique completely sidesteps the base-stat penalty that kept these items from seeing serious play.

Best Unique Bases & Modifiers for Aldur's Legacy Runecrafting

Not every unique item will be equally valuable. Some bases will dominate trade demand on day one. The top-tier picks are the ones whose modifiers are otherwise impossible to obtain or wildly stronger than what crafting allows. Here are the best picks broken out by gear slot, with notes on why each one influences builds in 0.5.

Best Weapons (Bows & Maces)

Quill Rain (Bow) - Possibly the single strongest rune candidate in the entire system. Its 100% increased attack speed is a local modifier, and pulling it free from the 40% less attack damage multiplier produces the fastest-attacking bows ever seen in PoE 2. Even at 50% scaled value, this would be transformative. Local attack speed gets multiplied by every other source of attack speed on your build, which means stacking it on top of a high-tier rare bow can nearly double your DPS while making the build feel snappier.

Hog Hunt (Two-Handed Mace) - Carries a 15% to critical hit chance modifier, applied as base crit. A two-handed mace with 10 base crit jumps to 25 with this rune, which is absurd scaling for crit-based mace builds. Class-restricted to two-handed maces, but the source item is essentially a one-alc drop, so destroying it costs nothing.

Olroavasara (Two-Handed Mace) - Provides 30% local attack speed plus a stacking maximum lightning damage line that applies to all skills, including heralds and triggered casts. Slotting this into a high-damage rare mace creates massive multi-skill scaling.

Rimnor's Hymn (Two-Handed Mace) - Slam skills you use yourself cause an additional aftershock. This is a build-defining line for slam Titans, mace Martial Artists, and any aftershock-focused setup. The source unique exists almost entirely for this single modifier.

Quill Rain (Bow) - It holds 100% local attack speed, the headline Legacy rune of the patch. Even reduced to 30%–40%, local attack speed roughly doubles a bow's attack rate, making bow builds the fastest they have ever been in PoE 2.

Ironbound (Bow) - Returns arrows after piercing fully broken armor. For Lightning Arrow players, this nearly doubles your effective damage output on broken targets. Expect a "less damage on returning projectiles" cap to keep it from becoming a free chase rune.

Brain Rattler (Mace)  - It causes all hits to apply electrocution buildup, a 5-second stun-like ailment. Strong defensively and combos with high-damage maces.

Trenchtimbre (Mace) -  This mace lets minion attack speed scaling apply to your character. Combined with mace builds like Rosara's lightning attacker or Brutus' Lead Sprinkler, it bypasses the slower attack speed inherent to maces.

Twisted Empyrean (Mace) - It offers either a flat cold modifier roughly double a current T1 craft or 100% fire-to-cold conversion for mace skills.

Best Body Armors

Blackbraid - 150% of armor also applies to elemental damage. Crafted body armors cap out at 50% of this stat, so adding this rune triples that value. Combined with a properly rolled rare, you can reach roughly 200% conversion for armor-stacking builds. Even with a 66% nerf, the floor is still better than what crafting allows.

Irongrasp -  This armor chest holds the Iron Grip and Iron Will keystones, the only sources of these in PoE 2. With Brutus' Lead Sprinkler and Face Breaker pushing strength-stacking mace builds in 0.5, an Irongrasp rune feeds projectile attack damage and spell damage scaling on a far better-crafted chest.

Best Helmets

Keeper of the Arc - Alternates less damage from hits and damage over time. Even scaled to 20% per side, this would still be worth using over almost any other helmet rune, because it's just a rune slot and doesn't lock you into the Keeper of the Arc base. This is one of the strongest defensive runes possible.

Crown of Thorns - Strong synergy with the new thorns rune introduced this league, which could open up an entire archetype. It delivers the Pain Attunement keystone to builds that cannot path to it on the tree, opening up low-life-style scaling on classes that previously had no access.

Alpha's Howl - 100% speed (action speed). Most valuable on energy shield base helmets, where it pairs with high-tier defensive rolls. Expect this to be one of the most popular extraction targets at league start.

Starkonja's Head - This helmet synergizes with the new Spirit Walker companion content, allowing 15% of damage from hits to be taken from a damageable companion's life first, a defensive tool that stacks with the actual helmet. Strong defensive and crit lines for ranger and ranged builds.

Ezomyte Peak - Increased area of effect, universally good for nearly every build type. A safe, non-niche pick.

Unwavering Stance candidates - Cannot be stunned is hard to nerf without adding a downside, making it an easy quality-of-life pick for almost any build that lacks stun mitigation.

Best Boots

Wanderlust - Movement speed unaffected by slows. This effectively turns any class into Pathfinder for the purposes of slow immunity, ignoring chilled ground, 50% chill, wet monster effects, and similar slow sources.

Trample Toe - Deals 30% damage to enemies within 2m of an enemy kill. A massive clear-speed booster, particularly useful for builds running single-target-focused skills like Flicker Strike that struggle with mapping efficiency.

Legion Stride - It gives 10% base block chance, pairing extremely well with the new Ironbound bow's native block.

Brier Patch - This one offers +25% to Thorns critical strike chance for Thorns-focused builds, freeing up the boots slot for resistances and movement speed.

Briskwrap / Foxshade - Solid mobility and evasion options for builds that need extra movement scaling.

Best Gloves

Allelopathy - Plus one charm slot. With Rage Blood being added in 0.5, charm uptime becomes far more important, pushing this rune into high-priority territory.

Death Blow -  It has Cutting Strike built in, a global culling-strike-style mod equivalent to two Witchhunter ascendancy points.

Global culling strike candidates - Approximately equivalent to 2 Witchhunter ascendancy points for one glove socket, which is a strong return on a single rune.

Best Shields

Svalinn - Chance to block is lucky. Removing this from the otherwise weak Svalinn base and slotting it into a properly itemized shield (or even another unique shield) creates absurd block stacking. If the downside doesn't carry over, this could define a block meta.

Sunderboar Pillar - 1% of damage as fire damage per 1% chance to block. Pairs beautifully with shield-throw and Captain America-style builds, especially when combined with shields like Nightfall of Fortress that already grant fire conversion.

Soaring Midnight - Tied to shield throw and slam combinations. Since the skill scales off the shield's armor value rather than your weapon, the build flexibility this enables is huge.

Best Talismans

More Mandragora -  It offers Druidic Prowess uptime (up to 30% increased skill speed), turning a weapon-swap-only buff into a permanent passive while freeing the swap slot for curses or auras.

Best Caster Picks

Adorned Egos - Pinnacle of Power is the modifier worth chasing here. If you can socket Pinnacle of Power into any caster item, the result is potentially insane scaling for power-charge-based builds. Without it, the rune is mostly worthless, so the gamble is high-risk.

Trenchtimber +skills line - A +2 lightning skill rune combined with the base item could reach +6 to shock mages, which is a major damage boost for minion-heavy builds.

Quivers / Other

Elevore - It now grants a charm charge per second (buffed from 0.5) and up to two charm slots. A passive charm-charge engine for any build that wants permanent charm effects.

Adorned's Ego - It is the wildcard candidate for extracting Pinnacle of Power, which would be game-warping if it transfers.

Olroth's Legacy Unique Base Tier List

The following table ranks every confirmed Legacy-eligible unique base by anticipated power level in 0.5, along with the slot, the mod most likely to define the rune, and a quick note on which builds to target.

The actual scaling factor GGG applies will reshape this ranking once 0.5 goes live, especially for the S-tier candidates that look outright broken at full power. For now, Quill Rain, Svalinn, Wanderlust, Keeper of the Arc, Hog Hunt, Blackbraid, and Rimnor's Hymn are the items most worth hoarding before prices climb. Track which Legacy runes appear cheapest on day one and grab the ones that fit your planned build before the market settles into the new meta.