View source for Modifier

{{Distinguish|stats}}
{{for|a list of item modifiers|List of item mods}}
'''Modifiers''' generally change various aspects of the entity they are affecting. Most commonly modifiers apply [[stat]]s, however they can also apply [[buff]]s or grant [[skill]]s and can often be found on [[item]]s, [[monster]]s, [[strongboxes]] or [[area]]s.

A modifier should be seen as an instance of change applied to an entity. A basic modifier does nothing on its own, it is given the effect by the associated [[stat]]s (and their values), [[buff]]s and [[skill]]s.

__TOC__

==Mechanics overview==

A modifier applies [[stat]]istics, a [[buff]] or grants a [[skill]] to an entity. Modifiers are specific to [[item]]s, [[monster]]s, [[strongboxes]] or [[area]]s.

Since not all statistics have a visible text, it is possible that some effects are granted by the modifier but are not visible to the player. On the wiki, some of these effects have a custom text specific to the wiki and are noted with <code>(HIDDEN)</code> in the description. In particular area and monster effects may be hidden from the player.

Modifiers can either be innately applied (as "implicit" modifier) to entities, be granted under specific conditions or randomly generated.

Some specific circumstances like the rarity of a monster, being touched or possessed by a [[Tormented Spirit]], etc can also apply modifiers innately without them being randomly generated.

Modifier generation is gated by specific conditions that govern if and how likely a modifier is going to appear:
* [[#Mod Domain|Mod domain]] governs the type of entity the modifier is going to appear and may confer some specific rules (such as the number of affixes).
* [[#Mod Generation Type|Mod generation type]] determines how the modifier is generated, for example whether it's a prefix, suffix, corrupted or always applied (like on unique items)
* [[#Mod Level|Mod level]] governs the minimum required level of the entity for a modifier to appear (i.e. the item level, monster level, area level), and for items only raises the item's level requirement to 80% of its value
* [[#Mod Group|Mod group (mod family)]] prevents other modifiers from the same family to be randomly generated on the same entity<ref name="mod_family"/>
* [[#Tags|Tags in conjunction with weights]] are used to further restrict the types of modifiers that can appear and set the relative chance to be randomly applied. (for example, shaper and elder get a corresponding tag)

The values of [[stat]]s include a minimum and maximum value, which is most commonly used on items - the actual value of the stat in the cases where minimum and maximum are not the same will be randomized within with equal chances, so for example a [[Stat]] with a minimum value of 1 and a maximum value of 3, can either be 1, 2 or 3 at 1/3 chance for each value.

If a [[buff]] is specified, '''Modifiers''' also include a value for the buff, but unlike for [[Stat]]s it is not randomized and fixed.

If a [[skill]] is specified, the specified skill (at the specified level) will be granted to the relevant entity. The modifier does not include values for the skill other then the level as they're defined by the skill itself. Often this is found on items, where they grant skills, such as {{il|The Whispering Ice}} [[unique item]].

==Local and global==
Modifiers can be categorized as "local" or "global" modifiers. 

===Local===
The concept of "local" modifiers has broadened since its original technical definition<ref name="Globalvslocal"/>. This can be seen by the use of [https://www.pathofexile.com/trade/search/Standard/8ayXJvMFV (local) in the trade site] for modifiers that failed to meet the original criteria of just base stat modifications, like {{c|mod|#% chance to Poison on Hit}}.

Currently, local modifiers can be identified by fulfilling any of the following requirements:

# '''Item Properties''': The modifier is unconditional and could affect innate properties of the item
# '''Hand-specific''': The modifier explicitly states that it applies to the item, such as "{{c|mod|with this Weapon}}"
# '''Weapon Hit Effect''': The modifier is on a weapon and could apply on a hit with a generic weapon, unrelated to the numeric damage dealt

'''Item Properties''': Item properties encompass all default properties of an item, including its base stats, [[attribute]] and [[level]] requirements, and [[socket]]s and [[link]]s. Base stats can be found at the top of the item's tooltip. For example, {{c|mod|#% increased Attack Speed}} and {{c|mod|Adds # to # Physical Damage}} on a [[weapon]] will modify the "Attacks per Second" and "Physical Damage" stat on the weapon itself. Certain stats may not be immediately obvious, as most base items have that stat's default value at 0. For example, {{c|mod|Adds # to # Fire Damage}} on a {{il|Solarine Bow}} directly adds to the weapon's base damage, of which Fire Damage is usually 0 for weapons. Default base stats are displayed in {{c|white|white}}, while modified base stats are displayed in {{c|mod|blue}} (with the exception of {{c|fire|fire}}/{{c|cold|cold}}/{{c|lightning|lightning}}/{{c|chaos|chaos}} damage on weapons, which are colour-coded based on their damage type and have a base stat of 0).
:[[Quality]] effects are always considered local as they affect an item's base stat(s). [[Catalyst]] quality effects are also local, which instead functions as {{c|mod|#% increased X Modifier magnitudes}} modifiers, which are the only type of local modifier that can be found on jewellery (as jewellery only have implicit modifiers, level requirements, and sometimes sockets as base stats).

:The following is a list of local base stat modifiers which can be quickly identified as local, if unconditional <sup>(Note that this list does not cover all local mods, just local mods that affect base stats)</sup>: 

:* Weapons: #% increased Physical Damage, Adds # to # X Damage, #% increased Attack Speed, #% increased Critical Strike Chance, +# metres to Weapon Range
::* Any other type of #% increased Damage is never local, as generic weapons only have base Physical Damage.
:* Armour: +# to [[Armour]]/[[Evasion Rating]]/maximum [[Energy Shield]]/[[Ward]], #% increased [[Armour]]/[[Evasion]]/[[Energy Shield]]/[[Ward]]
:* Shields: +# to [[Armour]]/[[Evasion Rating]]/maximum [[Energy Shield]], #% increased [[Armour]]/[[Evasion]]/[[Energy Shield]], +# to Block Chance
:* Flasks: All flask modifiers are local
:* Jewellery: Only {{c|mod|#% increased X Modifier magnitudes}} (including [[Catalyst]] [[quality]]) and modifiers relating to level and [[socket]]s are local
:* Maps: #% increased Item Quantity, #% increased Item Rarity, #% Monster Pack Size

'''Hand-specific''': Modifiers that include "{{c|mod|with this Weapon}}" or "{{c|mod|Main/Off Hand}}" should be considered local, despite being conditional, as they only apply to [[attack]]s using that specific hand/weapon. These types of modifiers are technically global modifiers that apply locally to one or both hand(s), and therefore cannot be scaled by other local increases<ref>https://www.reddit.com/r/pathofexile/comments/7jskkg/comment/dr9juk4/</ref>.
:Weapons that add specific damage to the main or off-hand also display these values in their base stats as if combined, although they display correctly in the character stats screen ({{key press|C}} by default) and skill tooltips as well as being correctly handled for [[Battlemage]]. Other main/off-hand stats like {{ml|WingsOfEntropyMainHandAttackSpeedFinalUnique__1_}} do not visually affect the base stats but are correctly reflected in the character stats screen. Two-handed weapons are always considered as being in the main hand (left), while shields are always considered in the off-hand (right).

'''Weapon Hit Effect''': Stats on weapons that apply on an attack hit with a generic (modifier-less) weapon (e.g. {{c|mod|#% Chance to Poison on Hit}}, {{c|mod|#% Chance to Maim}}, {{c|mod|#% of Physical Attack Damage Leeched as Life}}) are considered local. Flat modifiers to [[accuracy]] or chance to hit are also considered local, as chance to hit is hand-specific and determined on hit. While {{stl|Poison}} and {{stl|Bleeding}} chance are local, {{stl|Ignite}} chance is always global, as generic weapons do not have base [[fire damage]] and therefore cannot ignite.

===Global===
Global modifiers encompass all other modifiers that are not local. All conditional stats are global except for the main/off-hand stats listed above<ref>https://www.reddit.com/r/pathofexile/comments/7jskkg/comment/dr9igxg/</ref>. Global stats never modify an item's base stats and instead apply to the character's stats, and therefore cannot interact directly with other local modifiers. For example, the damage from  {{c|mod|Adds # to # Physical Damage}} on a weapon is scaled by {{c|mod|#% increased Physical Damage}} and [[quality]] on a weapon, but {{c|mod|Adds # to # Physical Damage to Attacks}} from the ring is not (as rings do not have base damage) and added separately in addition to the weapon's base damage before calculating any other global increased/more modifiers. Modifiers that state "Global" are always global.

Hybrid modifiers (modifiers with more than one line per stat) treat each line independently. A hybrid modifier can have both local and global parts, such as {{ml|ChanceToPoisonEnhancedLevel50Mod|display=verbose}}.

==Terminology==
In general modifiers are referred to as such, however there are many special cases of modifiers that correspond to specific sets and [[Modifiers#Conditions]] :

{| class="wikitable sortable"
! Term
! Explanation
|-
| Implicit
| Any innate modifier of an entity. Most commonly used in reference to items.

On items, this is the effect above the line separating modifiers. They can also be replaced via certain effects such as [[Corrupted|corruption]].
|-
| Explicit
| Any generated modifier of an entity that has a non-normal rarity (i.e. {{c|magic|magic}}, {{c|rare|rare}} or {{c|unique|unique}}).

May be randomized (such as prefixes, suffixes) or fixed (e.x. on [[unique item]]s).
|-
| Prefix
| Refers to the "Prefix" generation type. 

On magic entities, these will have a name visible before the name of the entity itself. For example, {{Ml|LocalIncreasedPhysicalDamagePercent4}} on a {{il|Broad Sword}} will show as {{c|magic|Vicious Broad Sword}}.
|-
| Suffix
| Refers to the "Suffix" generation type. 

On magic entities, these will have a name visible after the name of the entity itself. For example, {{Ml|Dexterity2}} on a {{il|Broad Sword}} will show as {{c|magic|Broad Sword of the Lynx}}.
|-
| Affix
| Either a prefix or a suffix.

Affixes are explicit modifiers that appear on magic and rare entities.
|-
| Corruption
| Refers to the "corrupted" generation type.

Corruptions replace implicit modifiers. {{il|Vaal Orb}} is most commonly used to generate [[corrupted]]. See [[Corrupted]] for a list of modifiers for additional methods of obtaining.
|-
| Enchantment
| Refers to the "enchantment" generation type

Enchantments use their own modifier slot to the item and will not replace implicit modifiers. [[Gloves]], [[boots]], [[helmets]] and [[belts]] can have [[Labyrinth Enchantment]]s, which can be acquired from [[the Labyrinth]]. [[Ring]]s, [[amulet]]s, and [[Blight league|Blight]] uniques can be [[Anoint]]ed to add an enchantment. Weapons and body armour be found with enchantments from [[Grand Heist]]s, or added using a {{il|Tempering Orb}} or {{il|Tailoring Orb}}; they can also be found from [[Harvest]]. [[Flasks]] can be enchanted by some harvest crafts, and utility flasks can be enchanted by using an {{il|instilling orb}} or {{il|enkindling orb}}
|- 
| Crusader
| Refers to Crusader [[influenced item]]s, which have the "crusader" tag corresponding to the item class.

Crusader items have an electric blue and red texture and a [[File:Crusader-item-symbol.png]] symbol next to the item's name.

Crusader prefixes are named "Crusader's" and suffixes "of the Crusade".
|- 
| Hunter
| Refers to Hunter [[influenced item]]s, which have the "basilisk" tag corresponding to the item class.

Hunter items have a poisonous green outline and a [[File:Hunter-item-symbol.png]] symbol next to the item's name.

Hunter prefixes are named "Hunter's" and suffixes "of the Hunt".
|- 
| Redeemer
| Refers to Redeemer [[influenced item]]s, which have the "eyrie" tag corresponding to the item class.

Redeemer items have a misty blue outline and a [[File:Redeemer-item-symbol.png]] symbol next to the item's name.

Redeemer prefixes are named "Redeemer's" and suffixes "of Redemption".
|- 
| Warlord
| Refers to Warlord [[influenced item]]s, which have the "adjudicator" tag corresponding to the item class.

Warlord items have a blazing yellow outline and a [[File:Warlord-item-symbol.png]] symbol next to the item's name.

Warlord prefixes are named "Warlord's" and suffixes "of the Conquest".
|- 
| Elder
| Refers to Elder [[influenced item]]s, which have the "elder" tag corresponding to the item class.

Elder items have a tentacle background and a [[File:Elder-item-symbol.png]] symbol next to the item's name. 

Elder prefixes are named "Eldritch" and suffixes "of the Elder".
|- 
| Shaper
| Refers to Shaper [[influenced item]]s, which have the "shaper" tag corresponding to the item class.

Shaper items have a cosmic background and a [[File:Shaper-item-symbol.png]] symbol next to the item's name.

Elder prefixes are named "The Shaper's" and suffixes "of Shaping".
|- 
| Delve
| Refers to the "delve" mod domain from crafting with [[fossil]] and [[resonators]]. 

Note that most of these mods are spawn disabled due to [[version 3.10.0]] changes. (exclusive mods from {{il|Bloodstained Fossil}} are removed in [[version 3.16.0]])

Delve prefixes are named "Subterranean" and suffixes "of the Underground". Note that in the Azurite Mine, there are drop-only mods that also use those mod names, but cannot be generated by fossil. These mods  do not marked as "delve" mod domain
|- 
| Veiled
| Refers to [[Veiled mod]]s, which are most commonly found in items that drop from the [[Immortal Syndicate]].

Veiled items have a [[File:Veiled-item-symbol.png]] symbol next to the item's name.

Veiled prefixes are named "Chosen" and suffixes "of the Order". Veiled affixes exclusive to certain Syndicate members are named after the agent (Ex. {{Ml|JunMasterWolfOnKill1_}}, {{Ml|JunMaster2PercentageAllAttributes1}} )
|-
| Fractured
| Refers to [[Fractured item|Fractured]] versions of base items. Fractured items have up to three permanently fixed mods that cannot be modified.

Fractured items appear partially worn down and have a pale glow and a [[File:Fractured-item-symbol.png]] symbol next to the item's name.

Fractured items were exclusive to the [[Synthesis league]]. They can be found in other challenge leagues content like [[Heist]] and [[Harvest]].
|-
| Synthesised
| Refers to [[Synthesised Item|Synthesised]] versions of base items. Synthesised have different implicit modifiers from the original base item, up to three.

Synthesised items have a distorted blue glow and a [[File:Synthesised-item-symbol.png]] symbol next to the item's name.

Non-unique Synthesised items were exclusive to the [[Synthesis league]]. They can be found in other challenge leagues content like [[Heist]] and [[Harvest]], or from [[Synthesis Map]]s under certain circumstances.
|- 
| Eater
| Refers to items with an [[Eater of Worlds implicit]] which have the "eaterofworlds" tag corresponding to the item class.

Eater items have a pulsing blue texture and a [[File:Eater-of-worlds-item-symbol.png]] symbol next to the item's name.

Eater implicits are named based upon the tier of [[eldritch implicit modifier]]s.
|- 
| Exarch
| Refers to items with a [[Searing Exarch implicit]] which have the "searingexarch" tag corresponding to the item class.

Exarch items have an orange blazing outline and a [[File:Searing-exarch-item-symbol.png]] symbol next to the item's name.

Exarch implicits are named based upon the tier of [[eldritch implicit modifier]]s.
|- 
| Hybrid
| Colloquially refers to modifiers that grant two or more different statistics in a single modifier.

For example, generally these refer to modifiers such as {{c|mod|#% increased Physical Damage, +# to Accuracy Rating"}}, or modifiers named after [[Incursion]] architects. 
|}

===Examples===
<gallery>
File:Goat's Horn 1 Normal.png| A {{c|normal|normal}} {{il|Goat's Horn}} with a ''increased Spell Damage'' implicit modifier.
File:Goat's Horn 2 Magic Transmutation orb.png| Using an {{il|Orb of Transmutation}} upgraded the {{il|Goat's Horn}} to a {{c|magic|magic}} item and added a prefix explicit modifier.
File:Goat's Horn 3 Magic Augmentation orb.png| Using an {{il|Orb of Augmentation}} added a suffix modifier.
File:Goat's Horn 4 Rare Regal orb.png| Using a {{il|Regal Orb}} upgraded it to {{c|rare|rare}} item and added an additional suffix modifier.
</gallery>

==Types of modifiers==
===Implicit modifiers===
[[File:Implicit Explicit Description.png|right|borderless|331x322px|Implicit modifier on items]]
Implicit modifiers always spawn on entities before the addition or change of additional modifiers (for example by changing the [[rarity]]). 

On [[monsters]], implicit modifiers can be very commonly found. For example, some monsters are granted damage conversion which converts their inherent damage to that of another element. 
However, on unique monsters and bosses implicits are most notable - for example most bosses are granted a boost to their [[item rarity]] and [[item quantity]] as well as other bonuses such as {{c|can not be shocked}} on [[Atziri]].

On [[item]]s, visible implicit modifiers are most commonly found on:
*[[Rings]]
*[[Amulets]]
*[[Belts]]
*[[Quivers]]
*Most [[weapons]]
*[[Shields]]
*Specific [[body armour]] ([[Astral Plate]], [[Assassin's Garb]], [[Occultist's Vestment]], and [[Carnal Armour]])
*[[List of atlas base items|Atlas base items]]
*[[Ritual base type|Ritual base items]]

[[Shields]] and [[body armour]] also commonly have a hidden movement speed penalty modifier.

Unlike the implicit modifiers on monsters, the implicit modifiers on equipment can be by altered in various ways:
* {{il|Blessed Orb}} - rerolls the range of the stats found on the implicit modifiers.
* {{il|Vaal Orb}} - [[Corrupted|Corruption]] can add or replace an implicit modifier depending on the item type.
* [[Eldritch currency]] - Eldritch Ichors and Eldritch Embers will replace the item's implicit modifier with an [[Eater of Worlds implicit]] modifier or a [[Searing Exarch implicit]] modifier respectively, while retaining any Eldritch modifiers of the other type.
* Using a [[Resonator]] with a {{il|Gilded Fossil}} will add an {{c|mod|Item sells for much more to vendors}} implicit to the item. This does not overwrite or affect the item's current implicit modifier.
* Certain [[Harvest]] crafting options allows you to set a new implicit modifier on jewels.
* [[Synthesised item]]s have up to three different random implicit modifiers, including on items that normally don't have an implicit modifier. You can transform an item into a synthesised item via [[Harvest crafting]].

Certain unique items also have special interactions with implicits:
* {{il|Greatwolf Talisman}} - has two randomly chosen [[talisman]] implicits.
* {{il|String of Servitude}} - triples the effect values of implicit modifiers.

===Enchantments===
Enchantments are similar to implicit modifiers, but are granted to the item by specific means. Enchantments have their own mod slot on items and do not use the implicit mod slot.<ref name="Enchantments0" /> Most items can have up to one enchantment at a time. Any level of [[rarity]], even [[unique items]], can be enchanted. [[Mirrored]] cannot receive an enchantment.<ref name="Enchantments1" /> They are always fixed values, so {{il|Blessed Orb|Blessed Orbs}} have no effect on them.<ref name="Enchantments2" /> Applying an enchantment on an already enchanted item replaces the old enchantment with the new one. Enchantments can be removed using the [[Crafting Bench]] recipe. This does not include maps, they can only be enchanted once.

* [[Flask]]s can receive an enchantment from an {{il|Instilling Orb}} to add an effect that causes it to be automatically used when a certain condition is met, or an {{il|Enkindling Orb}} to enhance a utility flask, but prevent it from gaining charges during the effect.
* Rings, Amulets, and certain [[Blight league]] uniques can be Anointed with [[Oil]]s to give it an enchantment.
* [[Cluster Jewel]]s have two (for small jewel and legacy medium and large jewels) or three enchantments: One that determines what stat the small passives gives (which determine what mods the jewel can roll), one that determines how many passive skills are in the cluster, and one that determines how many jewel sockets it has (for Large and Medium Cluster Jewels).
* Certain [[Harvest]] crafting options allows you to add enchantments to weapons, body armours, maps and flasks. Read [[harvest crafting]] for details.
* Weapons and body armour with enchantments are possible rewards in [[Grand Heist]]s. The enchantments can be added by using {{il|Tailoring Orb}} or {{il|Tempering Orb}} which drops from [[Heist league]].
* [[Sextant]]s (and {{il|Charged Compass}}) are used to apply an [[enchantment]] to a [[Voidstone]] to modify future maps opened a certain number of times.
* [[Labyrinth Enchantment]]s were obtained from the Divine Font at the end of [[the Labyrinth]]. Gloves, Boots, Helmets, and Belts could receive Labyrinth enchantments, depending on the difficulty. Labyrinth enchantments can no longer be acquired and can only be found in items that already have one in [[permanent league]]s.

===Scourge mods===
If an item becomes Scourged using the [[Blood Crucible]], it gains two Scourge implicit modifiers, one positive and one negative. Scourge mods are separate from implicit mods and enchantments. Blood Crucible upgrades can cause an item to gain additional Scourge implicit mods.

===Explicit modifiers===
Explicit modifiers are generally dynamically generated by changing the [[rarity]] of the entity or by other modification.

The number of affixes given by [[rarity]] depends on the rarity class:
* {{c|magic|Magic}} - random modifiers based on [[Modifiers#Conditions|conditions]]: (0 to 1) prefix and (0 to 1) suffix 
* {{c|rare|Rare}} - random modifiers based on [[Modifiers#Conditions|conditions]]: (1 to 3) prefixes and (1 to 3) suffixes (but always at least 3) with the exception of [[jewels]] which can only have (1 to 2) prefixes and (1 to 2) suffixes
* {{c|unique|Unique}} - non-random, fixed modifiers based on the unique entity

Monsters have different means of receiving modifiers:
* {{c|magic|Magic}} packs of monsters spawn with one [[Monster modifier]]
* {{c|rare|Rare}} monsters spawn with 2-4 [[Monster modifiers]]
* {{c|normal|Normal}} and {{c|magic|Magic}} monsters may be touched by a [[Tormented Spirit]], giving a [[Torment]] '{{c|torment|Touch}}' modifier
* {{c|rare|Rare}} and {{c|unique|Unique}} monsters may be possessed by a [[Tormented Spirit]], giving a [[Torment]] '{{c|torment|Possession}}' modifier
* {{c|rare|Rare}} monsters trapped in an [[Essence]] can have an '{{c|essence|Essence}}' modifier
* {{c|rare|Rare}} [[Beast]]s, which are found in [[Einhar]] missions, can have one or two {{c|bestiary|Bestiary}} mods.
* {{c|magic|Magic}} and {{c|rare|Rare}} monsters receive a {{c|delirium|Delirium}} modifier during a [[Delirium]] encounter; they are removed when the encounter is over
* Picking up a [[Talisman]] gives monsters a [[Talisman]] modifier ([[Talisman league]] only as well as specific [[Delve]] node that contains a Talisman-possessed monster)

On items, modifiers can be changed by spending [[currency]]:
* {{il|Divine Orb}} rerolls the value of any stats on explicit modifiers on the item
* {{il|Tainted Divine Teardrop}} randomly increases or decreases a modifier's tier on a [[corrupted]] item by one
* {{il|Orb of Scouring}}, {{il|Orb of Transmutation}}, {{il|Orb of Alchemy}}, {{il|Orb of Binding}}, {{il|Orb of Chance}}, {{il|Regal Orb}}, and {{il|Ancient Orb}} may be used to alter the [[rarity]] of an item (adding/removing mods in the process)
** {{il|Orb of Horizons}} and {{il|Harbinger's Orb}} will give the newly created map different modifiers.
** {{il|Tainted Chaos Orb}} can either reroll a corrupted item's modifiers or remove all its modifiers and turn it into a {{c|normal|Normal}} rarity item
** {{il|Tainted Mythic Orb}} can either transform a corrupted item into a {{c|unique|Unique}} item or destroy it 
* {{il|Orb of Alteration}} and {{il|Chaos Orb}} may be used to re-roll the modifiers on {{c|magic|Magic}} and {{c|rare|Rare}} items respectively
* {{il|Orb of Augmentation}} and {{il|Exalted Orb}} may be used to add a random modifier on {{c|magic|Magic}} and {{c|rare|Rare}} items respectively
** {{il|Eldritch Exalted Orb}} adds a prefix or suffix modifier on a {{c|rare|Rare}} item depending on its Eldritch implicit modifiers
* {{il|Vaal Orb}} has a chance to change the [[rarity]] or create [[maps]] with 8 Modifiers
* {{il|Orb of Annulment}} removes a random modifier from an item
** {{il|Eldritch Orb of Annulment}} removes a prefix or suffix modifier on a {{c|rare|Rare}} item depending on its Eldritch implicit modifiers
* {{il|Tainted Exalted Orb}} can either add or remove a random modifier from a [[corrupted]] item
* {{il|Fracturing Orb}} turns an item into a [[fractured item]] and permanently locks one of its modifiers

Areas may receive modifiers depending on how they were created unlike items, monsters or strongboxes:
* [[Corrupted]] areas as they have the 'secret_area' tag will receive (0 to 1) prefixes and (0 to 1) suffixes that satisfy that tag
* Areas created with [[Map]] items receive the modifiers on the map they were created with
* Areas created through a [[Map device]] may receive mods from placing [[map fragment]]s in the device
* The current league(s) or other server-wide effects (from [[race]]s for example)
* With [[Tempest]] active in the area, the area may receive a tempest modifier

==Conditions==

'''Modifiers''' usually include conditions which are used to determine how they appear. These are generally used to govern the creation of [[#Explicit modifiers|explicit modifiers]] on entities.

===Mod Domain===
<section begin=mod_domain />
The domain of a modifier specifies what kind of game object it applies to. The domains are primarily reverse engineered, as detailed information has been removed from the game files.

{| class="wikitable"
! Id
! {{abbr|Type|i.e. a short description of what it does}}
! Description
|-
! 1
| Item
| The mod is generated on [[item]]s (but not [[jewel]]s or [[flask]]s, etc)
|-
! 2
| Flask
| The mod is generated on [[flask]]s
|-
! 3
| Monster
| The mod is generated on [[monster]]s
|-
! 4
| Chest
| The mod is generated on Chests (i.e. [[Strongboxes]])
|-
! 5
| Area
| The mod is generated on [[map]]s, [[vaal side area]]s, [[Maven's Invitation]]s, [[Eldritch Horrors|Eldritch]]'s Invitations and [[expedition logbook]]
|-
! 6
| Unknown
|
|-
! 7 
| Relic
| The mod is generated on [[relic]]s
|-
! 8 
| Unknown
|
|-
! 9
| Crafted
| The mod is generated by [[crafting bench]] through bench crafting, including unlocked [[veiled modifier]]
|-
! 10
| Jewel
| The mod is generated on [[jewel]]s
|-
! 11
| Atlas
| The mod is generated by [[Sextant]]s.
|-
! 12
| Leaguestone
| The mod is generated by [[leaguestones]]. Whole leaguestone mechanic is not added to the core gameplay
|-
! 13
| Abyss Jewel
| The mod is generated by [[abyss jewel]]s.
|-
! 14
| Map Device
| The mod is generated as [[map crafting option]]
|-
! 16
| Delve Fossil
| The mod is generated by [[Fossil]]s (with some disabled, see [[version 3.10.0]] patch notes).
|-
! 17
| Delve Area
| The mod is generated on [[Azurite Mine]] areas
|-
! 18
| Synthesis Area
|  The mod is generated on Synthesis unique map, due to the map item mod {{c|mod|Map has # additional random Modifiers}}; used to be part of Synthesis instance building mechanic 
|-
! 19
| Synthesis Area (Global)
| The mod is generated on Synthesis unique map, due to the map item mod {{c|mod|Map has # additional Synthesis Global Modifiers}}; used to be part of Synthesis instance building mechanic 
|-
! 20
| Synthesis 
| The mod is generated as an implicit modifier on [[synthesised item]]s
|-
! 21
| Cluster Jewel
| The mod is generated on [[Cluster Jewel]]s
|-
!22
| Heist Area
| The mod is generated on [[Contract]] and [[Blueprint]]
|-
! 23
| Heist Gear
|The mod is generated on [[rogue's equipment]]
|-
! 24
| Trinket
|The mod is generated on [[Thief's Trinket]]
|-
! 25
| Watchstone 
|The mod is generated on craftable [[Watchstone]] (item no longer in-game)
|-
! 26
| Veiled modifier
| The mod is generated on item that drops from [[Immortal Syndicate]]
|-
! 27
| Expedition Remnants 
| The mod is generated on Remnants which affect [[Expedition]] monsters.
|-
! 28
| Unveiled modifier
| The mod is generated on item that drops from [[Immortal Syndicate]] and [[veiled modifier|unveiled]] by [[Jun]]
|-
! 29
|Eldritch Altar
|The mod is generated as monsters or players augmentations from [[Eldritch Altar]]s in maps influence by the [[Searing Exarch]] or the [[Eater of Worlds]]
|-
! 30
| Sentinel 
| The mod is generated on [[Sentinel]]s
|-
! 31
| Memory
| The mod is generated on Atlas [[Memory]] items
|-
! 32
| Sanctified Relic
| The mod is generated on [[Sanctified Relic]]s
|-
! 33
| Crucible area
| The mod is generated on {{il|Primeval Remnant|Primeval Remnants}} and {{il|Primordial Remnant|Primordial Remnants}}
|} <section end=mod_domain />

===Mod Generation Type===
<section begin=mod_generation_type />
The mod generation determines "how" the mod will be created on an item. The generation types are primarily reverse engineered, as detailed information has been removed from the game files.

{| class="wikitable"
! Id
! {{abbr|Type|i.e. a short description of what it does.}}
! Description
|-
! 1
| Prefix
| The mod is generated as prefix, for example [[Prefix|Item Prefix]].
|-
! 2
| Suffix
| The mod is generated as suffix, for example [[Suffix|Item Suffix]].
|-
! 3
| Unique
| The mod is "unique" - it is given directly to the relevant entity and not generated normally. For example, the mods on [[unique item]]s and implicit modifiers have this property.
|-
! 4
| Nemesis
| The mod is a [[Nemesis]] mod.
|-
! 5
| Corrupted
| The mod is a [[Corrupted]] mod and is given to the item upon corruption.
|-
! 6
| Bloodlines
| The mod is a [[Bloodlines]] mod.
|-
! 7
| Torment
| The mod is a [[Torment]] mod.
|-
! 8
| Tempest
| The mod is a [[Tempest]] mod.
|-
! 9
| Talisman
| The mod is a [[Talisman]] monster mod.
|-
! 10
| Enchantment
| The mod is a mod granted by [[Enchantment]].
|-
! 11
| Essence
| The mod is a mod granted by [[Essences]].
|-
! 13
| Bestiary
| This mod is a [[Bestiary]] monster mod.
|-
! 14
| Delve
| Used for delve areas.
|-
! 15
| Synthesis unknown
| 
|-
! 16
| Synthesis Globals
| Synthesis global area mod. Now only used on Synthesis unique maps
|-
! 17
| Synthesis Bonus
| 
|-
! 18
| Blight
| 
|-
! 19
| Blight Tower
| 
|-
! 20
| Monster Affliction
| This mod is a [[Delirium]] monster mod.
|-
! 21
| Enkindling Orb
| This mod is an enchantment for flasks from {{il|Enkindling Orb}}s.
|-
! 22
| Instilling Orb
| This mod is an enchantment for flasks from {{il|Instilling Orb}}s.
|-
! 23
| Expedition Logbook
| This mod is a [[Expedition Logbook]] mod.
|-
! 24
| Scourge Benefit
| This mod is a [[Scourge]] upside mod.
|-
! 25
| Scourge Detriment
| This mod is a [[Scourge]] downside mod.
|-
! 26
| Scourge Gimmick
| 
|-
! 27
| 
| 
|-
|-
! 28
| Searing Exarch 
| This mod is generated from [[Eldritch Ember]] currency. (28 was used by Archnemesis in version 3.17; Searing Exarch was 29)
|-
! 29
| Eater of Worlds
| This mod is generated from [[Eldritch Ichor]] currency. (Eater of Worlds was 30 during version 3.17)
|-
! 30
| Archnemesis
| This mod relates to "God-touched" [[Archnemesis modifier]]s
|-
! 31
| Crucible Passive Skill Tree
| This mod is generated as part of a [[Crucible passive tree]]
|-
! 32
| Crucible Passive Skill Tree Mutation
| This mod is generated only through mutation of the [[Crucible passive tree]] using a [[Forge of the Titans]]
|} <section end=mod_generation_type />

===Mod Level===
The required level of the relevant entity. For example, this can be the required [[item level]] or a [[monster level]]. 

However, there are cases where this is not respected: in particular this is the case for any mods that are directly given to other entities, such as [[implicit]] mods including [[enchantments]] or [[monsters]] with innate mods.

The mod level is also a factor in calculating the level requirement of [[items]]; raising the level requirement up to 80% requirement of the mod (with the requirement rounded down to the nearest whole integer).
In particular this is the case for mods on [[unique item]]s and for [[enchantment]]s

For example, {{il|Seven-League Step}} normally has a level requirement of {{#cargo_query: |table=items|where=name="Seven-League Step"|fields=required_level}}, however putting the {{ml|EnchantmentLifeAndManaLeechOnKill2_|display=stat_text}} enchantment from the 3rd [[labyrinth]] on it, will increase the level requirement to {{math|formula=\left \lceil{{{#cargo_query: |table=mods|where=id="EnchantmentLifeAndManaLeechOnKill2_"|fields=required_level|no html}} \times 0.8 }\right \rceil = {{#expr: floor({{#cargo_query: |table=mods|where=id="EnchantmentLifeAndManaLeechOnKill2_"|fields=required_level|no html}}*0.8)}}}}.

===Group/family===
Each modifier belongs to one or more groups (or families). These restrict which modifiers may appear on an object together.<ref name="mod_family"/> Only one modifier from any given group may appear on an object; in other words, all modifiers belonging to a group are mutually exclusive with one another.

This is often used used to influence the crafting of items, where players will add a mod from an undesired group of modifiers to block it. This means the undesired mods in that group will not be added when crafting currency is used. Together with the item level requirements, this creates the "tiered" system of modifiers.

===Tags===
Mods use the internal [[Tag]] system to determine on which entities they can appear and how likely they are to appear on entities. Tags are classified as spawn weight tag and mod tag:
===Spawn weight tag===
Spawn weight tag primarily functions like this:
* Find the [[Tag]]s on the basetype.
* Match the [[Tag]]s against the mod's list of tags. 
* For the found mods get the associated spawn weighting of the tag.
* If the spawn weighting is zero, discard the mod, otherwise use it.
* If multiple tags apply, the left-most tags are most important, where the right most tags are the least.

So, for example:
* {{il|Glorious Plate}} has the tags <code>{{#cargo_query:
|tables=items
|fields=items.tags
|where=items.name = "Glorious Plate"
|group by=items._pageID
}}</code>.
* {{il|Assassin's Garb}} has the tags <code>{{#cargo_query:
|tables=items
|fields=items.tags
|where=items.name = "Assassin's Garb"
|group by=items._pageID
}}</code>.
* The mod {{Modifier link|modid=LocalIncreasedPhysicalDamageReductionRatingPercent7}} has the spawn weights <code>{{#cargo_query:
|tables=mods, spawn_weights
|join on=mods._pageID=spawn_weights._pageID
|fields=CONCAT(spawn_weights.tag, " ", spawn_weights.weight)
|where=mods.id="LocalIncreasedPhysicalDamageReductionRatingPercent7"
|order by=spawn_weights.ordinal ASC
}}</code>.
* Result for {{il|Glorious Plate}}: The mod '''can''' spawn because it has the tag str_armour and a positive spawn weight.
* Result for {{il|Assassin's Garb}}: The mod '''can not''' spawn because only default matches and its spawn weight is 0.

===Mod tag===
Mods can be found tagged with mod tags. A non-exhaustive list can be found below. Some mods do not have any tags. These tags can interact with [[Catalyst]]s, [[Fossil]]s, [[Harvest]] crafting, and [[Heist]] [[enchantment]]s.

In the table below, the tags on the top row have associated [[Harvest]] crafts. As a result, they also have associated tag colours. The tags on the bottom row have neither.
{| class="wikitable"
|-
| {{c|craftinglightning|Lightning}} || {{c|craftingcold|Cold}} || {{c|craftingfire|Fire}} || {{c|craftingphysical|Physical}} || {{c|craftingchaos|Chaos}} || {{c|craftinglife|Life}} || {{c|craftingcaster|Caster}} || {{c|craftingattack|Attack}} || {{c|craftingspeed|Speed}}
|-
| Elemental || Resource || Mana || Damage || Gem || Attribute || Bleed || Poison || Ailment || Aura || Curse || Defences || Minion || Critical
|}

====Metamods====
The metamods {{ml|IntMasterItemGenerationCannotRollAttackAffixes|display=verbose }} and {{Ml|StrDexMasterItemGenerationCannotRollCasterAffixes|display=verbose }} can interact with [[Harvest]] crafting, {{il|Exalted Orb|Exalted Orbs}}, {{il|Orb of Annulment|Orbs of Annulment}}, and the [[beastcrafting]] recipes "Add a Suffix, Remove a Random Prefix" ([[Farric Lynx Alpha]]) and "Add a Prefix, Remove a Random Suffix" ([[Farric Wolf Alpha]]).

For example, when an Exalted Orb is used on an item with the {{Ml|IntMasterItemGenerationCannotRollAttackAffixes}}, the Exalted Orb cannot add modifiers with the "Attack" tag. Similarly, when an Orb of Annulment is used on an item with the {{Ml|StrDexMasterItemGenerationCannotRollCasterAffixes}} modifier, it will not remove any modifiers with the "Caster" tag. 

The "Remove" part of both [[beastcrafting]] methods do '''not''' respect metamods. Even if the item has "Cannot roll Attack Modifiers", modifiers grating Attack Speed can still be removed. However, the "Add" part '''will''' respect metamods.

The "Remove" part of all [[Harvest]] "Add/Remove" crafts does '''not''' respect metamods. Even if the item has "Cannot roll Attack Modifiers", modifiers granting Attack Speed can still be removed. However, the "Add" part '''will''' respect metamods. Additionally, Harvest Reforge crafts will also ignore any metamods.

Some crafting methods ignore or cannot be used with metamods. {{il|Awakener's Orb}}s<ref>See [[Version 3.9.1b]]</ref> ignore them. [[Essence]]s<ref name=essencemanifesto/> and [[resonator]]s socketed with [[fossil]]s may not be used on items with metamods. 

====Catalyst====
Quality applied to [[jewellery]], such as [[ring]]s, [[belt]]s, and [[amulet]]s, can only be applied with [[Catalyst]]s. Each type of Catalyst will apply a different type of quality which increases magnitudes of modifiers with the tags associated with the quality type.

For example, when a {{il|Fertile Catalyst}} is applied to [[jewellery]], it will apply a quality that increases the magnitude of modifiers with the [[Life]] or [[Mana]] tags, up to 20%. A modifier normally granting "+79 to Maximum Life" on the [[item]] will be enhanced to instead grant "+94 to Maximum Life", and a modifier normally granting "Non-Channelling Skills have -7 to Total Mana Cost" will be enhanced to instead grant "Non-Channelling Skills have -8 to Total Mana Cost". Modifiers enhanced this way will round down decimal values.

[[Fossil]]s multiply the weights of modifiers that match the type of the fossil, For example, {{il|Metallic Fossil}}s will multiply the weight of modifiers with the [[Lightning]] tag by 1000%, and the modifiers with [[Physical]] tags by 0%. Effectively, this will result in modifiers with the lightning tag to appear 10x more oftenwhen the item is rolled, and modifiers with the physical tag never rolling.

====Heist Enchantments====
Many [[heist]]-exclusive [[enchantment]]s can modify the magnitudes of modifiers of certain tags, both positively and negatively. These enchantments can be acquired either through the use of a {{il|Tailoring Orb}} on a [[body armour]], use of a {{il|Tempering Orb}} on a [[weapon]], or found already rolled as an item in a [[Curio Display]] at the end of a {{il|Blueprint: Bunker}}, {{il|Blueprint: Records Office}}, or {{il|Blueprint: Mansion}}. (All [[Grand Heist]] layouts with "Enchanted Rare Body Armour" and "Enchanted Rare Weapon" as a reward type).

For example, the enchantment {{c|craft|8% increased Explicit Life Modifier magnitudes}} will enhance a modifier that normally grants "+100 to Maximum Life" to granting "+108 to Maximum Life". Some Heist enchantments come with downsides. The hybrid modifier {{c|craft|10% increased Explicit Life Modifier magnitudes}} + {{c|craft|25% reduced Explicit Speed Modifier magnitudes}} will increase the magnitudes of modifiers with the [[Physical]] tags by 10%, but reduce the magnitudes of modifiers with the Speed tag, such as {{c|craft|19% increased Attack Speed}} by 25%.

====Harvest Crafting====
Many [[Harvest]] crafting methods interact with modifier tags. 

The craft "Reforge a Rare item with random modifiers, including a (tag) modifier" will completely reforge the modifiers of a [[Rare]] item, similar to a {{il|Chaos Orb}}, while guaranteeing a modifier with the specified tag. If there are no valid tags in the mod pool to roll for the selected [[item]], the craft cannot be used. The add/remove crafts work as expected.

The craft "Change a modifier that grants (Element) Resistance into a similar-tier modifier that grants (Different Element) Resistance" will swap a [[resistance]] modifier of a certain [[element]] into that of another one. Besides filling holes in your resistances (i.e. changing a modifier from [[Fire]] to [[Cold]] if you don't need fire resistances but are in need of cold), this craft can be used to re-roll the modifier values of said resistance modifiers. This method is similar to using a {{il|Divine Orb}}, with the benefits of not changing the values of other modifiers and the fact that [[lifeforce]] is generally far more common than Divine Orbs. To do this, simply switch back and forth between your desired element and another one. Each time you switch back to the type that you want, the modifier values will be re-rolled. This method is recommended for builds with high levels of investment, as usually a few % of resistance is not worth spending the lifeforce.

This method works for modifiers beyond the generic "+#% to (Element) Resistance". It also works for the [[incursion architect]]-exclusive [[resistance]]-granting modifiers. For example, the modifier {{Ml|ColdResistEnhancedLevel50ModAilments|display=verbose }} can be reforged into {{Ml|FireResistEnhancedLevel50ModAilments_|display=verbose }} and vice versa. This can be used to swap to another, more desired mod, or to effectively "divine" the modifier. This is generally more desirable than with the normal resistance rolls, as modifiers with "(30–50)% increased Damage with Hits against Chilled Enemies" have much higher roll variance and thus more value can be obtained.

==Developer information==

Relevant data can be found in the '''content.ggpk'''

{| class="wikitable"
| Mods
| <code>Data/Mods.dat</code>
| List of mods with their associated stats & values, buffs and skills, conditions
|-
| Mod Domains
| <code>Data/ModsDomains.dat</code>
| empty
|-
| Mod Generation Types
| <code>Data/ModsGenerationTypes.dat</code>
| empty
|}

Note that many other .dat files link to the relevant row of '''Mods.dat'''.

==See also==
* [[Stat]]
* [[:Category:Mods]]
* [[:Category:Mod lists]]

==Version history==
{{Version history table header}}
{{Version history table row|3.19.0|
* Fixed a bug where Recombinators were ignoring modifier families in certain situations.
}}
{{Version history table row|3.12.0|
* Item modifier tags have been entirely reworked with a goal in mind of consistency and simplicity. These changes have negligible impacts to the odds of various modifiers appearing on rare items naturally, but may have impacts to the results of certain crafting methods. A list of all modifiers and their associated tags can be found [https://www.pathofexile.com/public/news/2020-09-15/mods.html here].
* As a result of the above changes, several fossil descriptions have changed slightly.
}}
{{Version history table row|3.11.0|
* Fixed several modifiers that didn't have names.
}}
{{Version history table row|0.10.0|
* There is several mod balance in this patch which was the start of open beta. Read [[version 0.10.0]] for all the changes.
}}
{{Version history table row|0.9.3|
* Implicit mods on items now do not stop explicit mods of the same type being spawned. For example, a wand with built-in "+10% Spell Damage" can now get an additional random spell damage mod generated.
* Disabled the item mods that added three stats related to a single weapon type.
}}
{{Version history table row|0.9.0|
* Split the armour percentage mods into multiple mod series (one of which can get decreased stun duration).
}}
{{Version history table row|0.8.7|
* *Added support for [[item]]s having [[mod]]s that increase the level of [[gem]]s of a certain type socketed into them. 
}}
{{Version history table row|0.8.6|
* Rebalanced all item mods.
}}
{{Version history table row|0.8.5|
* Required level of a mod is now 80% of the generation level.
}}
{{Version history table row|0.8.3|
* Added rare item prefixes/suffixes for remaining [[item]] types.
* Mods on rares are now slightly biased towards the lower half of their ranges. They can still get the same values as magic, just slightly less often.
* Reduced size of [[accuracy]] mods.
}}
{{Version history table row|0.8.1|
* Nerfed some implicit mods on items such as [[cast speed]].
}}
{{Version history table row|0.8.0|
* Fixed a bug that could cause multiple mods of the same family to be generated on an item.
}}
{{Version history table row|0.7.1|
* Increased spell damage mods now work.
* Reduced amounts of elemental damage increase, spell damage and area of effect on mods and passive skills.
}}
{{Version history table row|0.5.13|
* Prevented implicit mods spawning again as explicit mods.
}}
{{Version history table row|0.5.3|
* Set up initial item mods.
}}
{{Version history table row|0.5.1|
* Fixed a bug where items that had mods would be deleted when a player leaves game.
* Fixed tag affinity stuff for item mods.
}}
{{Version history table end}}

==References==
{{reflist|refs=
<ref name="Globalvslocal">{{cite web|author=Mark_GGG|date=January 30, 2013|title=Local vs Global modifiers|url=https://www.pathofexile.com/forum/view-thread/84366#p940702|publisher=Official Path of Exile Forums|accessdate=August 21, 2016}}</ref>
<ref name="mod_family">{{cite web|author=Mark_GGG|date=September 25, 2018|title=PoEDB does not have a listed mod subset for additional mines/trap and mine damage mod, but metallic or corroded seem to block it.|url=https://www.reddit.com/r/pathofexile/comments/9iw9jp/question_poedb_does_not_have_a_listed_mod_subset/#e6ngdmo|publisher=Path of Exile subreddit|accessdate=July 6, 2019}}</ref>
<ref name="Enchantments0">{{cite web|author=Bex_GGG|date=March 6, 2019|title=Synthesis Patch Notes|url=https://www.pathofexile.com/forum/view-thread/2333648|publisher=Path of Exile Forums|accessdate=March 13, 2019}}</ref>
<ref name="Enchantments1">{{cite web|author=Bex_GGG|date=February 24, 2016|title=Ascendancy Enchantments|url=http://www.reddit.com/r/pathofexile/comments/479l8f/ascendancy_enchantments/d0baf9b|publisher=Path of Exile subreddit|accessdate=February 24, 2016}}</ref>
<ref name="Enchantments2">{{cite web|author=Bex_GGG|date=February 23, 2016|title=Ascendancy Enchantments|url=https://www.pathofexile.com/forum/view-thread/1592018|publisher=Official Path of Exile Forums|accessdate=February 24, 2016}}</ref>
<ref name=essencemanifesto>{{cite web|url=https://www.pathofexile.com/forum/view-thread/1713551|title=Essence Metamod Crafting|date=August 22, 2016|accessdate=October 16, 2020publisher=Official Path of Exile Forums|author=Chris}}</ref>
}}

{{Navbox Item Modifiers}}

[[Category:Modifiers]]
[[Category:Game mechanics]]
[[Category:Development information]]

[[de:Modifikatoren]]
[[ru:Модификатор]]