Unlucky | PoE2 Mechanic · WikiHere PoE2

What Unlucky does

Current rules

For defensive wording such as Damage of Enemies Hitting you is Unlucky, each eligible enemy Hit rolls its damage twice and uses the lower result. It does not make the enemy's Accuracy or Critical Hit chance Unlucky unless those rolls are named separately.

Roll twice, keep the worse result: Unlucky repeats the affected roll once and uses the result that is worse for the entity receiving the Unlucky modifier.
Defensive damage wording lowers the incoming roll: When Damage of Enemies Hitting you is Unlucky, the enemy's eligible Hit damage is rolled twice and the lower damage result is used. This is beneficial to the defender.
The named damage type matters: Physical Damage of Enemies Hitting you is Unlucky rerolls only the Physical component. Lightning Damage of Enemies Hitting you is Unlucky rerolls only the Lightning component. Other damage types in the same Hit are unaffected.
Binary chance formula: For an original success chance p, an Unlucky binary roll succeeds with probability p squared. For example, 40% enemy Critical Hit chance becomes a 16% effective chance when that Critical Hit chance is Unlucky.
Damage and Critical Hit chance are separate: Enemy Hit damage being Unlucky does not change whether the Hit is critical. The Lesser Harm names both enemy Critical Hit chance and enemy Hit damage separately because each requires its own Unlucky modifier.
Lucky and Unlucky cancel for the same roll: If the same stat or mechanic is both Lucky and Unlucky, the two modifiers cancel and that roll is made normally. They do not create three rolls.

Common Unlucky scopes

6 cases

01

Binary chance examples

An original 10% chance becomes 1% when Unlucky, 25% becomes 6.25%, 50% becomes 25%, 75% becomes 56.25%, and 90% becomes 81%. A 0% or 100% chance does not change.

Related: Critical Hit, Evasion

02

Damage range example

If two eligible incoming damage rolls produce 20 and 80, Unlucky damage uses 20. The benefit is larger for a wide damage range and smaller for a narrow range.

Related: Damage, Hit

03

The Barrow Dweller

All Damage of Enemies Hitting you is Unlucky while you are on Low Life. The condition and the Hit restriction both matter.

Related: The Barrow Dweller, Low Life, Hit

04

The Sunken Vessel

Only Physical Damage of enemy Hits is Unlucky. Elemental and Chaos components are not named by the modifier.

Armour(429-546)Evasion Rating(387-492)Base Movement Speed-0.04RequiresLevel 45, 41 Str, 41 Dex(120-180)% increased Armour and Evasion+(80-120) to maximum Life30% reduced Life Recovery rate33% chance to avoid ProjectilesPhysical Damage of Enemies Hitting you is UnluckyConvert All Armour to Evasion Rating"What are you lot looking at? We'reunder fire! Get to your stations!"- Captain Sventura, the Unlucky, Physical, Hit

05

The Burrower and The Black Cat

Only Lightning Damage of enemy Hits is Unlucky. The Black Cat applies this during its Charm effect, while The Burrower applies it while equipped.

06

Glancing Blows

Chance to Evade is Unlucky while Chance to Deflect is Lucky. The two modifiers do not cancel because they affect different rolls.

Related: Evasion, Deflect, Lucky

Limits and exceptions

4 rules

Unlucky incoming Hit damage does not affect damage over time.
Unlucky damage does not automatically reduce the enemy's chance to Hit or chance to Critically Hit.
Multiple sources of Unlucky for the same roll do not keep adding rerolls.
Check conditions such as Low Life, Recently, a Charm effect, or a specific damage type before treating the modifier as active.

Related pages

16 connections

mechanicLucky

A Lucky value is rolled twice and the better result is used. Luck applies only to the roll named by the modifier, such as Hit damage, Critical Hit chance, Block chance, or Deflect chance.

mechanicDamage

Damage is classified on three independent axes: source, delivery, and type. A component can come from an Attack, Spell, Thorns, or another source; deal a Hit or damage over time; and deal Physical, Fire, Cold, Lightning, or Chaos damage.

mechanicHit

A Hit is an instantaneous damage event. Any damage that is not damage over time is Hit damage, whether it comes from an Attack, a Spell, Thorns, or another effect.

mechanicCritical Hit

Critical Hits deal +100% extra damage (i.e. twice as much damage) by default. Critical Damage Bonuses can further modify this value.

mechanicEvasion

Evasion Rating grants an entropy-based chance to Evade enemy Hits completely. The actual chance compares the defender's Evasion Rating with the Accuracy Rating of the attacker.

mechanicDeflect

Deflection Rating gives a chance to Deflect damage from Hits. A normal Deflection prevents 40% of the Hit damage, while the chance depends on your Deflection Rating and the attacker's Accuracy Rating.

unique itemThe Barrow Dweller

(60-100)% increased Armour and Evasion

unique itemThe Sunken Vessel

(120-180)% increased Armour and Evasion

The Sunken VesselUnique | Knight Armour

Armour(429-546)Evasion Rating(387-492)Base Movement Speed-0.04RequiresLevel 45, 41 Str, 41 Dex(120-180)% increased Armour and Evasion+(80-120) to maximum Life30% reduced Life Recovery rate33% chance to avoid ProjectilesPhysical Damage of Enemies Hitting you is UnluckyConvert All Armour to Evasion Rating"What are you lot looking at? We'reunder fire! Get to your stations!"- Captain Sventura, the Unlucky

unique itemThe Burrower

-10% to Cold Resistance

unique itemThe Black Cat

(10-20)% increased Duration

currencyOx Idol

Shields and Bucklers: 15% increased Block chance

currencyWarding Rune of Bodyguards

Sceptres: Minions in your Presence have Onslaught while you are on Low Runic Ward

mechanicLow Life

A player or monster is on Low Life while its current Life is 35% of maximum Life or lower. Exactly 35% counts as Low Life. Items can replace that threshold or make another resource determine whether the condition is satisfied.

mechanicPhysical

Physical damage is one of the five Damage Types. It is the most common and the only one reduced by Armour, rather than by a Resistance.

mechanicLightning

Lightning Damage is one of the five damage types and one of the three Elemental damage types. Lightning Hits can Shock by default, while Electrocution requires a Skill, item, support, or other effect that explicitly enables Electrocution Buildup.

mechanicCharm

A Charm is a charged trinket that activates automatically when its implicit condition is met. Charms are equipped in slots supplied mainly by belts and provide a timed defensive, utility, or reward effect without being pressed manually.