Ailment

Ailments are a family of common Debuffs associated with specific damage types. The list of Ailments is: Bleeding, Ignite, Chill, Freeze, Shock, Electrocute, and Poison.

By default, specific Ailments are calculated based on only specific damage types, such as only the Fire damage of a Hit mattering when inflicting Ignite.

Allowing another damage type to contribute to an Ailment means that all damage of the relevant types is summed when performing calculations for that Ailment.

For Ailments that use Hit damage to determine Ailment chance or buildup, this means that the damage type becomes capable of inflicting that Ailment. For Ailments that only use Hit damage to determine Ailment Magnitude (i.e. Bleeding and Poison), you still need a way to apply those Ailments (e.g. a source of Bleeding or Poison chance).

Ailments are a type of debuff associated with specific damage types. Damaging ailments damage over time.

Damaging ailments: bleeding, poison, and ignite.

Non-damaging ailments: chill, freeze, shock and electrocute.

Mechanics

The chance for most ailments to be applied generally depends on the amount of damage dealt before mitigation compared to the defender's ailment threshold value. A player's base ailment threshold is based on half of their maximum life. This scaling is different for monsters; unique monsters with extremely large life pools may have a reduced relative ailment threshold.

Chill will always be applied as long as the damage meets the minimum ailment threshold to not be discarded, though its slow magnitude scales with the ailment threshold formula.

The chance to inflict poison or bleeding is based on a static numerical chance instead rather than being calculated via the ailment threshold formula.

The chance to inflict an ailment is multiplicative against the chance to avoid an ailment. If the defender has 100% chance to avoid an ailment, they cannot be inflicted with that ailment, even by constant ground effects that usually bypass ailment avoidance chance.

List of ailments

Ignite, chill, freeze, shock and electrocute are elemental ailments. Bleeding and poison are non-elemental ailments.

Ailment	Associated damage type	Effect
Bleeding	Physical	Bleeding can only be inflicted by physical damage dealt to Life. Bleeding enemies take physical damage over time, at 15% of the physical damage of the hit that inflicted bleeding per second. Bleeding deals an additional 100% damage per second if the enemy is moving or the bleeding has been Aggravated. The base duration is 5 seconds.
Poison	Physical and chaos	Poison causes the affected target to take chaos damage over time, at 20% of the combined physical and chaos damage of the hit that applied it per second, with an explicit source of poison chance. The base duration is 2 seconds.
Ignite	Fire	Ignite causes the affected target to burn for 20% of the fire damage of the final hit that applied it, per second. The base duration is 4 seconds.
Chill	Cold	Cold damage always inflicts chill. Chill slows all actions of the affected target up to 50%, based on the cold damage of the hit. The base duration is 2 seconds.
Freeze	Cold	Freeze prevents the affected target to move or act for a duration. The base duration is 4 seconds.
Shock	Lightning	Shock causes the affected target to take 20% increased damage from all sources, based on the lightning damage of the hit. The base duration is 4 seconds.
Electrocute	Lightning	Electrocute causes the affected target's action speed to drop to 0, effectively immobilizing a target.

Skill gems

List of gems containing the phrase "ailment":

Active gems

Gem
Tempest BellTempest BellAttack, AoE, Melee, Sustained, Duration, Nova Tier: 3 Level: 1Build Combo by successfully Striking Enemies with other skills. After reaching maximum Combo, use this skill to cause the Bell on your staff to grow to massive size as you drop it on the ground. The Bell damages enemies on impact and can be Hit by your skills, creating a damaging shockwave. Elemental Ailments applied to the Bell cause its shockwaves to deal extra damage of the corresponding type, and Hits which would have caused Knockback increase the area of effect of the shockwaves.Requires 4 Combo to use Lose Combo if you generate no Combo for 8 seconds Limit 1 Bell Bell duration is 6 seconds Bell is destroyed after 10 Hits Impact Attack Damage: (120–490)% Impact radius is 1.8 metres Shockwave Attack Damage: (50–132)% 50% less Attack Speed Shockwave radius is 2.4 metres Shockwave can be triggered once every 0.25 seconds Additional Effects From 1-20% Quality: Bell is destroyed after (0-2) HitsPlace into a Skill Gem socket to gain this skill. These are found in the Skill Gems panel.
Unbound AvatarUnbound AvatarBuff, Lightning, Cold, Fire, Duration, Conditional Level: (1-20) Cooldown Time: 0.50 secGain Unbound Fury by inflicting Elemental Ailments with Hits on enemies. Once you reach maximum Unbound Fury, consume it to become Unbound for a duration, vastly augmenting your Elemental prowess.Gain Unbound Fury when you inflict an Elemental Ailment with a Hit on an Enemy, no more than once every 0.2 seconds for each type of Ailment Maximum 100 Unbound Fury Cannot gain Unbound Fury while Unbound 40% more Elemental Damage while Unbound 40% more Elemental Ailment Buildup while Unbound 80% more chance to inflict Elemental Ailments while Unbound Unbound duration is (8–9.9) secondsSkills can be managed in the Skills Panel.
Shockburst RoundsShockburst RoundsAmmunition, Attack, AoE, Projectile, Lightning, Payoff Tier: 11 Level: 1 Attack Speed: 450% of baseLoads your Crossbow with a clip of charged bolts which release damaging pulss upon Hitting an enemy affected by a Lightning Ailment. Using this skill again reloads the clip.Converts 40% of Physical Damage to Lightning DamagePlace into a Skill Gem socket to gain this skill. These are found in the Skill Gems panel.
Mana RemnantsMana RemnantsBuff, Persistent, Remnant Tier: 4 Level: 1 Reservation: 30 spiritConjure surging arcane energy to restore your Mana. While active, enemies you kill affected by Elemental Ailments have a chance to spawn a Mana Remnant, and Critically Hitting a target with Elemental Ailments spawns a Mana Remnant every few seconds. Picking up a Mana Remnant grants you Mana which can Overflow maximum Mana.Skills can be managed in the Skills Panel.
Elemental SunderingElemental SunderingAttack, AoE, Melee, Lightning, Cold, Fire, Nova, Payoff Tier: 11 Level: (1-20) Cost: (7-53) Mana Attack Speed: 55% of basePlunge your Spear into the ground to emit a pulse that Consumes Freeze, Shock and Ignite on a number of nearby enemies, Allies and Corpses. The pulse itself deals no damage, but each Ailment Consumed causes an explosion of the corresponding elemental damage type. Additional Effects From 1-20% Quality: +(0.01-0.2) metres to Pulse radiusSkills can be managed in the Skills Panel.

Support gems

Gem
Intense AgonyIntense AgonySupport, Spell, Duration Tier: 2Support Requirements: +5 IntSupports Spells that deal non-Ailment damage over time, causing them to have a shorter duration but deal substantially more damage over time with Debuffs inflicted against enemies on full life.Damage over time with non-Ailment Debuffs inflicted on full-life enemies by Supported Skills deal 50% more damage Supported Skills have 25% less Skill Effect DurationPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple copies of the same Support Gem socketed at the same time.
HinderHinderSupport, Spell, Chaos Tier: 2Support Requirements: +5 IntSupports Spells that deal non-Ailment Chaos damage over time, causing damage over time they inflict to also Hinder enemies. Does not Support Skills used by Minions.Chaos damage over time inflicted by Supported Skills also Hinders enemiesPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple copies of the same Support Gem socketed at the same time.
Chaotic FreezeChaotic FreezeSupport, Spell, Chaos Tier: 3Support Requirements: +5 IntSupports Spells that deal non-Ailment Chaos damage over time. Enemies taking damage over time from Debuffs caused by supported skills will suffer Freeze build up from Chaos damage Hits from any source. Does not Support Skills used by Minions.Chaos damage Contributes to Freeze buildup for Hits against targets taking damage over time from Supported SkillsPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple copies of the same Support Gem socketed at the same time.
Drain AilmentsDrain AilmentsSupport, Spell Tier: 3Support Requirements: +5 IntSupports Spells that deal non-Ailment damage over time, causing them to consume Ailments on enemies it applies damage over time Debuffs to in order to deal substantially more damage over time.Supported Skills Consume a random Ailment on the target when inflicting damage over time Debuffs, causing the Debuff to deal 35% more damage if an Ailment was consumedPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple copies of the same Support Gem socketed at the same time.
Elemental FocusElemental FocusSupport Tier: 3Support Requirements: +5 IntSupports any skill that Hits enemies, causing it to deal more Elemental Damage but be unable to inflict Elemental Ailments.Supported Skills deal 25% more Elemental Damage Supported Skills cannot inflict Elemental AilmentsPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple copies of the same Support Gem socketed at the same time.
ExecrateExecrateSupport Tier: 3Support Requirements: +5 IntSupports any damaging Skill that you use yourself, granting it significantly higher chance to inflict Ailments on hit, but causing it to gain a long cooldown. Cannot support Skills which already have a cooldown.Supported Skills have 100% more chance to inflict Ailments Supported Skills have +8 seconds to CooldownPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple copies of the same Support Gem socketed at the same time.
Elemental DischargeElemental DischargeSupport, Spell, Trigger, Lightning, Cold, Fire, Payoff Tier: 3Support Requirements: +5 IntSupports any Spell that Hits enemies, causing it to consume Elemental Ailments on hit to trigger an Elemental Discharge. Cannot support the skills of Minions.Support Supported Skills Cannot inflict Freeze, Shock or Ignite Supported Skills Consume Freeze, Shock and Ignite on hit to trigger Elemental Discharge Elemental Discharge Cooldown Time: 1.00s Cast Time: 1.00s Critical Hit Chance: 10.00% Consuming Freeze deals 80% to 120% of your Intelligence as Cold Damage Consuming Ignite deals 40% to 60% of your Intelligence as Fire Damage Consuming Shock deals 1% to 120% of your Intelligence as Lightning Damage Discharge radius is 2 metresPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple copies of the same Support Gem socketed at the same time.
DerangeDerangeSupport Tier: 3Support Requirements: +5 IntSupports Skills which you use yourself which can deal damage. Supported Skills gain an Energy Shield cost equal to your Intelligence, while also dealing more non-Ailment Damage over time based off of your Intelligence. Cannot support Channelling Skills.Supported Skills gain an Energy Shield cost equal to your Intelligence Supported Skills deal 8% more non-Ailment Damage over time per 100 IntelligencePlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple copies of the same Support Gem socketed at the same time.
CommiserateCommiserateSupport Tier: 2Support Requirements: +5 DexSupports Skills you use yourself which can cause Damaging Hits. Supported Skills inflict more powerful Ailments if you are afflicted with those Ailments when you inflict them, while also removing from you any Ailment that they inflict.Ailments inflicted by Supported Skills have 30% increased Magnitude if you are afflicted with that Ailment when inflicting it When inflicting an Ailment with Supported Skill, remove that Ailment from yourselfPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple copies of the same Support Gem socketed at the same time.
AcrimonyAcrimonySupport Tier: 2 Cost & Reservation Multiplier: 110%Support Requirements: +5 IntSupports Skills which can Damage Enemies. Enemies affected by Damage over time from Supported Skills which was not caused by a Damaging Ailment have reduced Life regeneration rate. Only the strongest instance of this Debuff will apply. Does not Support Skills used by Minions.Enemies affected by non-Ailment Damage over time from Supported Skills have 50% reduced Life regeneration ratePlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple copies of the same Support Gem socketed at the same time.
File:Deathmarch inventory icon.pngDeathmarchDeathmarchSupport, Minion, Persistent Tier: 2Support Requirements: +5 IntSupports Skills which create Persistent Minions. Supported Minions will restore Life to nearby Allied Minions on death, as well as removing Ailments from those Minions.Minions from Supported Skills heal Allied Minions within 3 metres for 25% of Supported Minions' life on death, as well as removing all Ailments from those MinionsPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple copies of the same Support Gem socketed at the same time.File:Deathmarch inventory icon.png
File:Excoriate inventory icon.pngExcoriateExcoriateSupport, Attack, Melee Tier: 2 Cost & Reservation Multiplier: 115%Support Requirements: +5 DexSupports Melee Attack Skills. Supported Skills deal more Melee Damage for each Elemental Ailment on Enemies they hit, but cannot themselves inflict Elemental Ailments.Supported Skills cannot inflict Elemental Ailments Supported Skills deal 10% more Melee Damage for each Elemental Ailment on Enemies they HitPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple copies of the same Support Gem socketed at the same time.File:Excoriate inventory icon.png
File:Steadfast inventory icon.pngSteadfastSteadfastSupport, Channelling Tier: 2 Cost & Reservation Multiplier: 110%Support Requirements: +5 StrSupports Channelling Skills you use yourself, granting you increased Ailment Threshold while Channelling them.You have 100% increased Ailment Threshold while Channelling Supported SkillsPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple copies of the same Support Gem socketed at the same time.File:Steadfast inventory icon.png

Version history

Version	Changes
0.2.0	Player base Ailment Threshold is now half of Maximum Life (previously all of Maximum Life).
0.1.0	Introduced to the game