Aura

A Marauder with five auras: Determination, Grace, Haste, Hatred and Purity of Elements.

Auras are persistent area of effect skills that surround a person or creature with some radius and grant their effects to allies and/or enemies within that radius (the aura's area of effect). This mechanic is widely used throughout the game.

Mechanics

Being a subset of buff/debuff system, auras inherit all characteristics from them and are affected by buff modifiers. They can be temporary or permanent, positive or negative, and so on. Auras can only update their affected targets every 250ms.

Sources of auras:

• skill gems
• passive skills
• monster modifiers and skills
• elemental proliferation
• item skills, such as
• modifiers from unique items, such as

Mana reservation

Main page: Mana reservation

Auras are cast by reserving mana to maintain their effects. Mana reservation sets aside a portion of mana as unusable for as long as the skill is active. Having mana reserved does not reduce the rate of mana regeneration, so it will reduce the time taken for mana to regenerate to its (temporary) maximum.

Reserved mana values are multiplied by support gem mana cost multipliers as usual. The Blood Magic passive will cause life to be reserved instead of mana. The gem does not reduce the mana reserved by an aura. Passives and items that reduce mana reserved do so multiplicatively; having a combined 20% Reduced Mana reserved reduces the cost of from 35% mana reserved to 28% mana reserved, not 15%.

Player auras

All allies within the area of a player's aura skill will receive the aura's buff. The magnitude of that buff is determined by the Aura generator's Increased Effect of Auras stat. However, that stat has no effect on the strength of an Aura received from someone. Passive and item modifiers can further enhance the effects received from an aura.

For example, Player A is generating a Level 20 aura; granting everyone inside the aura 303 Energy Shield. Player A also has +25% Increased Effect of Non-Curse Auras, thereby increasing the amount of Energy Shield to 379. Player A has no increases to Energy Shield, so they will only see an increase of 379 Energy Shield. Player B has +100% Increased Maximum Energy Shield and stands inside Player A's aura, thus Player B sees an increase of 758 Energy Shield. Player B's own "Increased Effect of Auras" stat has no bearing on the effect of the Discipline received from Player A.

The passive tree can provide 69% aura effect, though it requires heavy point investment. The Champion Duelist class can have an additional 20% effect, the Guardian Templar class can have an additional 10% effect, and the Necromancer Witch class an additional 5%. can provide another 3% effect. Through the use of with its lvl 30 and up to 15% increased effect mod, an additional 64% increased aura effect can be obtained. However, supported auras will not affect you. If the player equips a , an additional 18% effect can be achieved at the cost of a shield (such as ) and weapon (such as or ). Additionally, the player can equip amulet for up to an additional 15% increased effect. There is also a type of that grants aura effect.

There is no limit to the number of auras a player can cast, so long as they have the resources to maintain them. However, a player cannot cast multiple copies of the same aura upon themself (such as multiple Discipline auras in an attempt to get a very strong Energy Shield boost); the different copies will simply replace each other.

Auras effects that originate from items or passive skills will not be affected by aura modifying effects.

Note: Tooltip values only show the base aura effects; they do not show modified aura effects.

Curse auras

See also: Curse

With the use of the gem, any curse gem may be converted into an aura, thereby reserving mana to maintain a persistent curse effect around the player. Enemies who enter the Blasphemy aura are then cursed with the supported curse skill(s). Blasphemy auras are affected by both Curse and Aura Area of Effect increases. Most Aura effect increases specify that they only apply to non-curse auras, so they will have no effect on curse auras. Curse effect increases will function normally on curse auras.

Reduced Mana reserved modifiers affect Blasphemy auras in the same way as other auras; likewise, Reduced mana cost has no effect on Blasphemy auras. All Blasphemy auras reserve the same base amount of mana: 35%.

Curses applied via Blasphemy count towards the active curse limit. Curse auras also take priority over curses applied via casting, and will override those curses if they exceed the curse limit.

Note: Tooltip values only show the base curse effects; they do not show modified curse effects.

Banners

Banners are a sub-group of aura skills. Banners provide an aura effect while active and can gain stages in this state under certain conditions, collecting up to 50 stages. Using the banner skill again will deactivate the aura and place the banner at your current location, which provides the aura effect around it, plus an additional effect based on the number of stages collected. Activating the banner skill while the banner is placed will despawn the placed banner.

You can only have one Banner skill active at a time.

Mines

Most mine skills give mines an aura around each mine, affecting nearby enemies. Auras from multiple mines can stack. Auras from mines are affected by aura effect modifiers.

Support gem combinations

Auras themselves do not do damage. They provide a buff which can add extra damage, extra defenses, or utility. As with curses, added damage support gems have no effect on linked Aura skills. These support gems will affect auras:

- This will cause linked auras to reserve health instead of mana, but increase the cost by the mana multiplier. Note that "reduced mana cost" from increases in quality have no effect on mana reservation.
- Casts a totem which will maintain the aura. The cost to cast the totem is the mana that would be reserved multiplied by the Mana Cost Multiplier of the Totem support and any other linked support gems.
- Increases the effect of the non-curse auras on allies (including minions) but prevents them from affecting the player.
- Further increases the Area of Effect of the Aura, but increases the Mana reservation by the gem's multiplier.
- Lessens area of effect and applies the mana cost mulitplier, but does not provide a bonus to aura damage, as auras cannot directly cause damage. An exception would be the aura from .
- Reduces the mana reserved of the aura by the amount of the mana multiplier.
- Adds levels to supported auras, but increases their cost by the mana multiplier.
- Increases the quality of the gem, granting increased area of effect, but at increased mana cost.
Note that does not affect reservation, but does affect auras supported by Spell Totem Support.

Aura Skills

Aura skill gems

Regular auras come from aura skill gems and reserve a percentage of the player's mana pool, with the exception of , and , which reserve a flat amount.

Banner skill gems

Banner skills provide an aura and have a secondary activation which places the banner on the ground and activates additional effects:

Vaal aura skill gems

These Vaal skill gems temporarily activates an aura using collected souls:

Skills with temporary aura effects

These skill gems below grants an aura as a temporary effect and does not reserve mana.

Curse skill gems

See also: Curse#Active_gems

There are currently 11 Hex skill gems usable by players. Using the gem linked to Hex gems, or socketing Hex gems into will allow those curses to be cast as auras.

Auras skills granted by items

• grants
• grants
• & grants (Can also be obtained from ilvl 85+ Elder amulets)

Auras granted by items

• grants Damage Aura
• grants Mana Regeneration Aura
• 's skill grants The Flow Untethered aura
• 's skill grants The Torrent's Reclamation aura

Other

Note that there are other skills which reserve mana and provide beneficial effects, such as , Heralds and Aspects - but these skills are not auras and are unaffected by aura effect or other modifiers that specifically affect auras. See Mana reservation for a list of all abilities that reserve mana.

Aura modifiers

Suffix

This list does not includes mods that only affect specific aura skill:

Jewel implicit/enhancement

Jewel implicit was craftable via Harvest mechanics. Jewel with enhancement are dropped in Heist:

Misc

is a drop-only mod from specific Delve node.

is a mod craftable on helmets by using an or .

Legacy mods

Since version 3.10.0, these fossil-only mod are disabled to spawn:

These non-unique mods have the spawn weight set to zero:

Related unique items

The following unique items are related to auras:

Related passive skills

There are passive skills that grant aura bonuses.

Area of effect radius for auras

These passive skills grant increased area of effect radius for auras.

Effectiveness of auras

These passive skills grant increased effect magnitude for auras.

Cluster Jewel passive skills

The following Cluster Jewel passives are related to Auras:

Timeless Jewel Keystones

Name	Stats
Supreme Ego	You can only have one Aura on you from your Skills Your Aura Skills do not affect Allies 50% more Effect of Auras from your Skills on you 50% more Mana Reserved

Version history

Version	Changes
3.14.0	Development manifesto quote: "...reservation skills no longer have an associated cost by default, so you don't need the current mana available to reserve a skill. Even when your mana is completely depleted, you can still enable an aura, making it much easier to swap out auras or turn one on again if you accidentally disabled it."
3.11.0	We wanted to add support for mechanics that have been added in the past few years that as of yet do not have adequate support on the passive tree. Some of these mechanics include Rage, Unleash, Corpse manipulation, Warcries, Heralds and Banners. Added several new Curse- and Aura-centric notables.
3.10.1c	All sources of "x% increased Effect of Auras on you" now instead grant "x% increased Effect of Non-Curse Auras from your Skills on you".
3.10.1	x% increased Effect of Auras on You modifiers no longer apply to enemy debuff auras.
3.0.2	Your Spectres and Auras are now saved when you log out or are disconnected.
1.1.4	Added a new corrupted Skill Gem - Vaal Grace: Casts a temporary aura that grants you and your allies the ability to dodge attacks and spells. Added a new corrupted Skill Gem - Vaal Clarity: Casts a temporary aura that lets you and your allies cast skills without paying their mana costs.
1.1.3	Added a new corrupted Skill Gem - Vaal Haste: Casts a temporary aura that increases the movement speed, attack speed and cast speed of you and your allies. Added a new corrupted Skill Gem - Vaal Discipline: Casts a temporary aura that grants energy shield to you and your allies and prevents energy shield recharge being delayed by damage taken.
1.0.1	Added a new Strength skill gem - Purity of Fire: Casts an aura that grants fire resistance to you and your allies. Higher levels increase maximum fire resistance. Added a new Dexterity skill gem - Purity of Ice: Casts an aura that grants cold resistance to you and your allies. Higher levels increase maximum cold resistance. Added a new Intelligence skill gem - Purity of Lightning: Casts an aura that grants lightning resistance to you and your allies. Higher levels increase maximum lightning resistance. Purity renamed to Purity of Elements. This aura no longer grants maximum resistances.
1.0.0	For all Auras: Base area of effect has been increased. The area of effect bonus from quality has been doubled. The mana cost for all auras except Clarity has been changed to 60% reservation.
0.9.8	Added a new player aura - Clarity: An aura that grants mana regeneration to you and your allies.
0.9.7	Added nine player aura skills: Anger (Fire Damage), Hatred (Cold Damage), Wrath (Lightning Damage), Discipline (Energy Shield), Grace (Evasion), Determination (Armour), Purity (Elemental Resistances), Haste (Attack Speed and Cast Speed) and Vitality (Life Regeneration).