How Diseases Work
Diseases are encounter-driven monster effects that add pressure, identity, and danger to fights. An encounter can give monsters a disease, changing the kind of threat players face. Some diseases apply damage over time, some punish standing still, some weaken players, and some are tuned for bosses.
Important:
Diseases are not the same as item affixes. Diseases affect monsters and combat pressure. Affixes are item prefixes and player equipment set bonuses. Encounters can use one disease while dropping items from a separate Affix Drop Group.
What Players Should Watch For
Damage-Over-Time Pressure
Diseases that damage you continuously. Keep health managed and avoid prolonged fights without healing.
Ground or Area Pressure
Diseases tied to positioning or movement. Stay mobile and avoid standing still when these effects are active.
Debuffs and Weakening
Diseases that reduce your defence, speed, or offensive power. Defensive characters should be especially careful.
Boss Disease Pulses
Boss-tuned diseases with larger radius or stronger effects. Watch for callouts and reposition quickly.
Pack Danger
Diseases more dangerous when you are surrounded. Spread out from allies if spores, chains, or group effects are spreading.
Adaptive Strategies
The need to move, cleanse, heal, or focus specific targets depending on what disease the encounter uses.
Fire Diseases
Ashveil
Burning pressure / vision of ash
Ashveil covers the fight in smouldering ash, creating steady fire pressure over time. Players should expect attrition-style damage and should avoid letting the fight drag on without healing or defensive planning.
Player Advice:
Keep health topped up and avoid being surrounded while the ash pressure builds.
Burning Wound
Bleeding burn / sustained damage
Burning Wound represents a fire injury that continues to hurt after the initial hit. It is a straightforward sustained-pressure disease that punishes players who ignore repeated monster hits.
Player Advice:
Back off or heal when the burn pressure stacks with normal monster damage.
Cindercurse
Curse / fire follow-up pressure
Cindercurse marks the encounter with cursed flame. It is a fire-themed disease that adds extra pressure to monsters in cinder or hell-themed zones.
Player Advice:
Treat Cindercurse monsters as priority targets if they are grouped with other sources of fire damage.
Cinderscorch
Scorching fire damage
Cinderscorch burns players with direct scorch pressure. It fits aggressive fire encounters where monsters are meant to wear players down quickly.
Player Advice:
Avoid prolonged face-tanking and use movement to reduce incoming pressure.
Flashfever
Sudden fever spikes
Flashfever creates bursts of heat and sickness rather than slow, predictable pressure. It is meant to feel unstable, with dangerous moments where the disease pressure spikes.
Player Advice:
Be ready for sudden health drops and avoid stacking multiple diseased monsters at once.
Radiance
Searing light / holy fire pressure
Radiance is a bright, burning disease that uses light-themed pressure. It is less about rot and more about overwhelming the player with searing radiant energy.
Player Advice:
Do not assume all fire diseases are dark or demonic; Radiance can appear in holy or sun-themed encounters.
Scorchmark
Marked for burning
Scorchmark brands the player with a burning mark. It is a dangerous disease when combined with monsters or bosses that punish marked targets.
Player Advice:
If you are marked, play defensively until the pressure passes.
Sunscourge
Harsh sunfire attrition
Sunscourge burns with punishing sunfire. It is a fire disease suited to harsh desert, solar, or holy-fire encounters.
Player Advice:
Expect sustained fire pressure and prepare healing for longer fights.
Water Diseases
Corrosion
Armour weakening / damage amplification
Corrosion eats away at defences and makes players feel more vulnerable. It is a dangerous disease when paired with hard-hitting monsters.
Player Advice:
Avoid taking heavy hits while corroded. Defensive builds should treat Corrosion as a serious threat.
Crystalbleed
Shard bleeding / damage over time
Crystalbleed causes jagged crystal wounds that continue to damage the player. It is an attrition disease with a sharp, physical feel.
Player Advice:
Do not ignore it during long fights; crystal bleed pressure adds up quickly.
Drenched
Wet debuff / setup pressure
Drenched soaks the player and makes them vulnerable to water, frost, or storm-themed follow-up mechanics. On its own it may feel manageable, but it becomes dangerous in combination encounters.
Player Advice:
Watch for enemies that follow Drenched with frost or lightning pressure.
Frostbite
Cold damage / slowing pressure
Frostbite represents freezing damage that wears players down and can make positioning more difficult. It is well-suited to ice and water encounters.
Player Advice:
Keep moving early before frost pressure makes the fight harder to control.
Frostblight
Frost corruption / weakening
Frostblight combines cold pressure with blight-like weakening. It is more dangerous than a simple chill because it implies both damage and vulnerability.
Player Advice:
Avoid being trapped by multiple Frostblight monsters, especially in tight spaces.
Earth Diseases
Crushed
Physical pressure / heavy impact
Crushed represents bodily trauma and crushing force. It fits earth, stone, and brute-force encounters where monsters overwhelm players with weight and pressure.
Player Advice:
Avoid standing still while surrounded by crushing monsters.
Dustlung
Choking dust / area attrition
Dustlung fills the fight with choking dust, wearing down players over time. It is especially dangerous in packed fights where escape routes are limited.
Player Advice:
Move out of dense monster packs and avoid letting dust pressure stack with melee damage.
Ironrot
Rotting metal / defence decay
Ironrot weakens armour and endurance with a rust-like disease. It makes players feel less protected over time.
Player Advice:
Defensive characters should be careful; Ironrot can make normally safe fights more dangerous.
Petrify
Stiffening / movement danger
Petrify hardens the body and creates positioning danger. It is an earth disease that should feel like the player is becoming slower, heavier, or easier to punish.
Player Advice:
Move early and avoid mechanics that punish slow reactions.
Roothold
Root pressure / positional control
Roothold represents roots, vines, or earth magic trying to hold the player in place. It is dangerous when paired with area effects or monsters that punish immobility.
Player Advice:
Do not stand in dangerous areas while affected by Roothold-style pressure.
Sporeblight
Poison spores / spreading pressure
Sporeblight spreads fungal or spore-based sickness. It is a nature disease that works well in jungle, swamp, or infected encounters.
Player Advice:
Avoid clustering if spores are spreading through the group.
Sporeblight (Boss)
Boss-tuned spore pressure
This is a stronger boss-focused version of Sporeblight. It is intended for boss abilities, pulses, or high-pressure encounter moments rather than ordinary monster disease pressure.
Player Advice:
Watch for boss callouts or pulses and reposition quickly when spore pressure appears.
Stonebind
Stone pressure / retaliation danger
Stonebind hardens and binds the target with earth energy. It fits defensive or retaliation-themed encounters where the disease makes the fight feel heavier and more punishing.
Player Advice:
Do not let Stonebind monsters surround you; reposition before the fight becomes difficult to escape.
Air Diseases
Aetherflux
Aether instability / magical pressure
Aetherflux destabilizes the player with raw magical energy. It is an air/aether disease that fits arcane, storm, or unstable magical encounters.
Player Advice:
Expect unpredictable pressure and watch for boss abilities that pulse aether energy.
Aetherflux (Boss)
Boss-tuned aether pulse
This is a boss-focused version of Aetherflux, intended for stronger pulse mechanics and high-pressure boss moments.
Player Advice:
Watch for ability callouts and avoid stacking tightly during aether pulses.
Disoriented
Confusion / control pressure
Disoriented interferes with focus and positioning. It is an air disease that should feel disruptive rather than purely damaging.
Player Advice:
Take extra care with movement and avoid dangerous ground effects while disoriented.
Galechill
Wind and cold pressure
Galechill combines cutting wind with chilling pressure. It fits stormy, high-altitude, or ice-wind encounters.
Player Advice:
Stay mobile and avoid being pushed into bad positions by other mechanics.
Stormfrazzle
Storm disruption / unstable energy
Stormfrazzle represents chaotic storm energy disrupting the player. It is dangerous in encounters with multiple sources of lightning or chain pressure.
Player Advice:
Spread out if storm effects are chaining or bouncing between targets.
Thunderfaint
Shock / burst disruption
Thunderfaint shocks the player with sudden bursts of storm energy. It is designed to feel like an interruptive, dangerous air disease.
Player Advice:
Keep health high and avoid fighting too many thunder-themed monsters at once.
Voltsurge
Electrical surge / burst pressure
Voltsurge builds electrical pressure and can create sudden dangerous moments. It fits lightning-themed encounters and fast-paced fights.
Player Advice:
Avoid stacking with allies or standing near multiple storm monsters if surge pressure is active.
Neutral Diseases
Boneweave
Bone curse / physical affliction
Boneweave twists bone and body with a neutral curse-like disease. It is suited to undead, crypt, or bone-themed encounters.
Player Advice:
Treat Boneweave as a sustained physical curse and avoid long fights without recovery.
Hexweave
Hex / curse pressure
Hexweave applies woven curse pressure rather than a pure elemental disease. It is useful for dark magic, witchcraft, or cursed encounters.
Player Advice:
Watch for follow-up mechanics that punish cursed or weakened players.
Voidcling
Void attachment / lingering pressure
Voidcling attaches unstable void energy to the player. It represents a lingering dark pressure that can make extended fights more dangerous.
Player Advice:
Avoid dragging out fights against void-themed monsters.
Voidtouched
Void corruption / unstable damage
Voidtouched corrupts the target with void energy. It is a neutral/dark disease suited for dangerous magical encounters.
Player Advice:
Expect unstable pressure and be careful when multiple void enemies are present.
Frequently Asked Questions
Are diseases the same as affixes?
No. Diseases affect monsters and combat behaviour. Affixes are item prefixes and set bonuses.
Can one disease drop multiple affixes?
Yes. Encounters can now use a disease for monster behaviour while selecting a separate Affix Drop Group for loot.
What are boss disease variants?
Boss variants are tuned versions of diseases intended for boss abilities or stronger encounter pressure.
Related:
Learn about Affixes & Set Bonuses