Debuffs

Debuffs are status effects that affect the player or target negatively. This page comprehensively lists all debuffs added by the Calamity Mod, and also describes Calamity's new mechanics pertaining to debuffs, and changes to vanilla debuffs.

Debuff Resistances and Vulnerabilities

The Calamity Mod introduces a debuff resistance and vulnerability system. There are five sets of debuffs that enemies may be resistant or vulnerable to: cold, water, sickness, electricity and heat. If an NPC is vulnerable to one of these sets, damage over time (DoT) effects from that set are 2x as effective. If an NPC is resistant to one of these sets, all effects from that set are 0.5x as effective.

In the table below, represents a vulnerability and represents a resistance.

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Amplification

Certain buffs and debuffs can amplify the effects of these vulnerabilities or cancel out resistances:

• NPCs that are Wet or submerged in water, lava, or honey are considered vulnerable to electricity.
  • If that NPC is already vulnerable to electricity, then electricity debuffs are 2x more effective again on that NPC. This means they will be 4x as effective in total.
  • If that NPC is resistant to electricity, then being Wet or submerged cancels out the resistance. This means that electricity debuffs will work as normal while that NPC is Wet or submerged.
• The same logic applies to Slimed or Sparkle Slimed NPCs with heat debuffs as well as Irradiated NPCs with sickness debuffs.
• The Fireball alcohol cause heat debuffs to be additively 25% more effective on all NPCs.
• The Cinnamon Roll alcohol cause heat debuffs to be additively 50% more effective on all NPCs.
• The Hellfire Treads accessory causes heat debuffs to be additively 50% more effective on all NPCs.
• The Snow armor set bonus causes cold debuffs to be additively 25% more effective on all NPCs.
• The Cryo Stone accessory causes cold debuffs to be additively 50% more effective on all NPCs.
• The Toxic Heart accessory causes sickness debuffs to be additively 50% more effective on all NPCs.
• The Transformer accessory causes electricity debuffs to be additively 50% more effective on all NPCs.
• The Evergreen Gin alcohol causes both sickness and water debuffs to be additively 25% more effective on all NPCs.

NPC-Specific Resistances

Some NPCs are less affected by their vulnerabilities:

• Worm NPCs that are vulnerable to a certain set of debuffs only cause them to be 1.5x as effective, rather than the normal 2x.
  • Similarly, amplifications only increase effectiveness by 1.5x instead of 2x (bringing the total to 2.25x effectiveness from 4x).
• The Slime God shares this logic, but only for heat debuffs.

Debuffs by Category

Cold debuffs

• Frostbite
• Frostburn
• Glacial State
• Nightwither
• Temporal Sadness

Electricity debuffs

• Electrified
• Galvanic Corrosion

Heat debuffs

• Banishing Fire
• Brimstone Flames
• Cursed Inferno
• Daybroken
• Dragonfire
• God Slayer Inferno
• Hellfire
• Holy Flames
• On Fire!
• Shadowflame
• Vulnerability Hex

Sickness debuffs

• Absorber Affliction
• Acid Venom
• Astral Infection
• Kami Flu
• Plague
• Poisoned
• Sage Poison
• Sulphuric Poisoning
• Whispering Death

Water debuffs

• Crush Depth
• Eutrophication
• Riptide

Boss Slows and Stuns

In the Calamity Mod, many bosses are now vulnerable to most debuffs that allow them to be slowed down or stunned. However, after being afflicted with one of these debuffs, the boss will become immune to these debuffs for 3 minutes.

Boss Slowing Debuffs

• Kami Flu
• Temporal Sadness
• Time Distortion
• Vaporfied
• Vulnerability Hex

Boss Stunning Debuffs

• Eutrophication
• Galvanic Corrosion
• Glacial State
• Webbed

List of debuffs

From enemies

Icon	Name	From	Effect	Tooltip
	Armor Crunch	Golem, any type of Biome Blade, Earth Elemental weapons, Spear of Paleolith, The Ballista, Apotheosis, and melee and rogue attacks and summoner whips with Flask of Crumbling.	If inflicted on an enemy: Target loses 15% damage reduction. If inflicted on a player: Target loses 66.67% damage reduction and 15 defense.	Your armor is shredded
	Astral Infection	Astrum Aureus, Astrum Deus, enemies in the Astral Infection biome and weapons crafted from Astral Bars or dropped by enemies in the Astral Infection.	If inflicted on an enemy: Target loses 37.5 health per second and 5% contact damage. If inflicted on a player: Target loses 10 health per second and 15% damage.	Your flesh is melting off
	Boss Effects	While any boss is alive	Reduces spawn rate by 80% and maximum spawn count by 99.9%.	The nearby boss is: Greatly reducing enemy spawn rates Increasing Nurse healing cost by 400% Disabling Target and Super Dummy hitboxes
	Brimstone Flames	Calamitas Clone, Catastrophic Construct, Cataclysmic Construct, Brimstone Elemental, Calamity Eyes, Soul Slurpers, Heat Spirits, and various weapons.	If inflicted on an enemy: Target loses 30 health per second. If inflicted on a player: Target loses 8 health per second.	Incinerating both body and mind
	Burning Blood	The Perforators, Rem's Revenge, and several Crimson themed weapons.	If inflicted on an enemy: Target loses 25 health per second. If inflicted on the player: Target loses 4 health per second.	Your blood is on fire
	Clamity	Giant Clam	Spawn rates of Clams go up and Clams become aggressive, all other spawn rates are reduced to zero	The clams have been angered!
	Crush Depth	The Abyss, Bloatfish, Bobbit Worms, Colossal Squids, Eidolon Wyrms, Giant Squids, Gulper Eels, Reaper Sharks, and various weapons.	If inflicted on an enemy: Target loses 30 health per second (in Pre-Hardmode) or 90 health per second (in Hardmode) If inflicted on a player: Target loses 9 health per second. The higher defense a target has, the less damage taken per second.	Crushed by aquatic pressure
	Dragonfire	Yharon, Dragon of Rebirth, The Torch God, and items dropped from Yharon.	If inflicted on an enemy: Target loses 180 health per second. If inflicted on a player: Disabled life regeneration, target loses 18 health per second.	Engulfed by roaring flames
	Extreme Gravity	Astrum Deus, The Devourer of Gods	All infinite flight is disabled, and maximum flight time is reduced by 25%.	Your wing time is reduced by 25%, infinite flight is disabled
	Fish Alert	Luminous Corvina	Enemies in the Abyss can notice the player more easily and from further away.	The abyssal creatures have spotted you
	Glacial State	Cryogen, Cryon, Ice Golem, and various weapons.	Target cannot move at all.	Cannot move
	God Slayer Inferno	The Devourer of Gods, Cosmic Guardian, and various weapons.	If inflicted on an enemy: Target loses 125 health per second. If inflicted on a player: Target loses 15 health per second.	Your flesh is burning off
	Holy Flames	Providence, the Profaned Goddess, Sunskater, and various weapons.	If inflicted on an enemy: Target loses 100 health per second. If inflicted on a player: Target loses 8 health per second.	Dissolving from holy light
	Holy Inferno	Providence, the Profaned Goddess	Target takes damage that exponentially increases in severity as time spent away from Providence increases to a maximum of 100 health per second.	You've gone too far from the Profaned Goddess!
	Icarus' Folly	Providence, the Profaned Goddess	All infinite flight is disabled, maximum flight time is reduced by 33%.	Your wing time is reduced by 33%, infinite flight is disabled.
	Irradiated	Acid Rain enemies and several Acid Rain themed weapons.	If inflicted on an enemy: Target loses 10 health per second and increases effectiveness of sickness debuffs. If inflicted on a player: Target loses 2 health per second, 10 defense, and 10% damage reduction.	Your skin is burning off
	Miracle Blight	XF-09 Ares, Iridescent Excalibur and weapons made with Miracle Matter.	If inflicted on an enemy: Target loses 1250 health per second. If inflicted on a player: No health regeneration, target loses 20 health per second.	Exotic resonance shreds your corporeal form
	Nightwither	Providence, the Profaned Goddess, Profaned Energy, Polterghast, various weapons, and Umbraphile armor.	If inflicted on an enemy: Target loses 100 health per second. If inflicted on a player: Target loses 8 health per second.	Incinerated by lunar rays
	NO U	THE LORDE	Armors and accessories no longer work.	Equips disabled
	Plague	The Plaguebringer Goliath, Plaguebringers, Melters, Plagueshells, Virulings, Pestilent Slimes, Plague Chargers, and various weapons.	If inflicted on an enemy: Target loses 50 health per second and 5% contact damage. If inflicted on a player: Target loses 10 health per second, 15% damage, and their vision is darkened.	Rotting from the inside
	Sulphuric Poisoning	Water in the Sulphurous Sea, several weapons, Nuclear Terrors, and Radiators post-Polterghast	If inflicted on an enemy: Target loses 90 health per second. If inflicted on a player: Target loses 3 health per second and natural regen is disabled.	The acidic water burns away your flesh
	Vulnerability Hex	Supreme Witch, Calamitas, Cataclysm, Catastrophe, Soul Seekers, Calamity and weapons enchanted with Aflame.	If inflicted on an enemy: Target loses 1332 health per second. If inflicted on a player: Disables life regeneration, target loses 8 health per second, 20 defense, 10% damage reduction, and their vision is darkened. Flight time is reduced by 25%.	Your mental fortitude is fading
	Warped	The Devourer of Gods	Target has increased vertical acceleration.	Movement is being warped
	Weak Petrification	Ravager	Disables additional jumps and jump height boosts. Flight time is reduced by 50%, all infinite flight and mounts are disabled.	Your vertical movement is weakened
	Whispering Death	Signus, Envoy of the Devourer, The Devourer of Gods, Omniblade	If inflicted on an enemy: Target's contact damage is reduced by 10%. If inflicted on a player: damage reduced by 25% and no life regen.	Death approaches; attack power and life regen reduced

From the Drunk Princess' drinks

Icon	Name	From	Effect	Tooltip
	Alcohol Poisoning	Consuming more than three drinks at a time.	Reduces the player's life regen by 3 for each drink debuff currently active.	You drank too much and you are now dying
	Bloody Mary	Bloody Mary	Boosts damage and movement speed by 10% during a Blood Moon. Reduces life regen by 4 and defense by 4%.	Damage and movement speed increased during a Blood Moon, life regen and defense reduced
	Caribbean Rum	Caribbean Rum	Boosts life regen by 2, movement speed by 10% and wing flight time by 20%. Makes you floaty and reduces defense by 10%.	Life regen, movement speed, and wing flight time increased, you are floaty and defense is reduced
	Cinnamon Roll	Cinnamon Roll	Boosts mana regeneration rate and multiplies all fire-based debuff damage by 1.5. Reduces defense by 10%.	Mana regen rate and fire debuff damage increased, defense reduced
	Everclear	Everclear	Boosts damage by 25%. Reduces life regen by 10 and defense by 30%.	Damage increased, life regen and defense reduced
	Evergreen Gin	Evergreen Gin	Multiplies all sickness and water-related debuff damage by 1.25. Reduces life regen by 1.	Sickness and water debuff damage increased, life regen reduced
	Fab	Fabsol's Vodka	Increases all damage by 8% and lengthens immune time after being struck. Decreases defense by 10%.	You feel fabulous
	Fireball	Fireball	Multiplies all fire-based debuff damage by 1.25. Reduces life regen by 1.	Fire debuff damage increased, life regen reduced
	Grape Beer	Grape Beer	Reduces defense by 3%.	Defense reduced
	Margarita	Margarita	Halves the duration to most debuffs. Reduces defense by 6% and life regen by 1.	Reduced duration to most debuffs, defense and life regen reduced
	Moonshine	Moonshine	Increases defense by 10 and damage reduction by 3%. Reduces life regen by 1.	Defense and damage reduction increased, life regen reduced
	Moscow Mule	Moscow Mule	Boosts damage by 9%, knockback by 50% and critical strike chance by 3%. Reduces life regen by 4.	Damage, critical strike chance, and knockback increased, life regen reduced
	Red Wine	Red Wine	Reduces life regen by 1.	Life regen reduced
	Rum	Rum	Boosts life regen by 2 and movement speed by 10%. Reduces defense by 5%.	Movement speed and life regen increased, defense reduced
	Screwdriver	Screwdriver	Multiplies piercing projectile damage by 1.05. Reduces life regen by 1.	Piercing projectile damage increased, life regen reduced
	Star Beam Rye	Star Beam Rye	Boosts max mana by 50, magic damage by 8%, and reduces mana usage by 10%. Reduces defense by 6% and life regen by 2.	Max mana and magic damage increased. Defense, mana usage, and life regen reduced
	Tequila	Tequila	Boosts knockback by 10%, critical strike chance by 4%, and defense by 5 during daytime. Reduces life regen by 1.	Critical strike chance, defense, and knockback increased during daytime, life regen reduced
	Tequila Sunrise	Tequila Sunrise	Boosts knockback by 20%, critical strike chance by 8%, and defense by 10 during daytime. Reduces life regen by 2.	Critical strike chance, defense, and knockback increased during daytime, life regen reduced
	Vodka	Vodka	Boosts damage by 6% and critical strike chance by 2%. Reduces life regen by 1 and defense by 5%.	Damage and critical stike chance increased, defense and life regen reduced
	Whiskey	Whiskey	Boosts damage by 4%, knockback by 20% and critical strike chance by 2%. Reduces defense by 5%.	Damage, critical strike chance, and knockback increased, defense reduced
	White Wine	White Wine	Boosts magic damage by 8%. Reduces defense by 6% and life regen by 1.	Magic damage increased, life regen and defense reduced

From Items and the Environment

Icon	Name	From	Effect	Tooltip
	Enraged	Demonshade armor	The player deals 125% more damage but takes 25% more damage.	All damage taken is increased by 25%
	Frozen Lungs	Water in the Snow biome and Ice biome in Expert Mode	The breath meter decreases significantly faster.	The icy waters restrict your breathing
	Mana Burn	Chaos Stone if the player is inflicted with Mana Sickness	Exponentially deals more damage to the player over time, peaking at 36 damage per second. Replaces Mana Sickness.	The excess of mana sears your body and mind
	Noseless Popo	Magic Scarf and Hat	The player (as a snowman) loses their nose	Your nose has been stolen!
	Searing Lava	Lava in the Brimstone Crag	Player loses 15 health per second.	The brimstone lava sears your flesh
	Weak Brimstone Flames	Using any weapon with the Aflame Enchantment	The player loses 3.5 health per second.	Health loss
	Withered	Using any weapon with the Withering Enchantement	Decreases life regeneration based on how long the Enchanted weapon had been held for.	Holding withered weapons causes you to suffer but makes your weapons strong

From the player

Icon	Name	From	Effect	Tooltip
	Absorber Affliction	The Absorber	Reduces enemy damage reduction by 30%.	Damn nature, you scary!
	Banishing Fire	Angelic Alliance	If the target has less than 1,000,000 max health, it will lose 2,000 damage per second. If the target has more than 1,000,000 max health, it will lose 0.2% of its max health as damage per second.	You shall not be forgiven for your sins
	Clammed	Snap Clam	Target loses 30 health per second per attached clam, capping at 2 clams.	Clam clap
	Crumbling	Broken Biome Blade, Craw Carapace, Flask of Crumbling, and Rotten Dogtooth	If inflicted on an enemy: Target loses 0.88x damage reduction. If inflicted on a player: Target loses 10 defense and 0.55x damage reduction	Your armor is damaged
	Eutrophication	Big coral from Coral Cannon, Eutrophic Scimitar, Clam Crusher, Prismalline, and Abyssal Mirror shards	Target cannot move.	Excessive nutrients restrict your movement
	Galvanic Corrosion	Hydra, Shock Grenade and Tesla Potion	Target's horizontal and vertical speeds are crippled.	Your limbs have begun to corrode
	Kami Flu	Yanmei's Knife	Target's damage reduction is reduced by 20% and they take 125 damage per second.	Defenseless and dying
	Marked for Death	Lunic Eye, Anti-materiel Rifle, and Deep Wounder.	Target's damage reduction reduced by 50%.	Damage reduction reduced
	Pearl Aura	Giant Pearl	Target's horizontal and vertical speeds are slowed.	Slowed down
	Profaned Weakness	Relic of Resilience	Target's next attack damage is reduced by 45%.	You do less damage
	Rancor Burn	Rancor	Causes enemies to disintegrate into ashes on death.	Burning
	Riptide	Abyssal Amulet and Depth Crusher	If inflicted on an enemy: Target loses 20 health per second. If inflicted on a player: Target loses 3 health per second.	Lashed at by powerful waters
	Sage Poison	Viral Sprout	Deals a constant damage over time, increasing in damage the more Sage Spirits are present.	Poisoned
	Shellfish Claps	Shellfish Staff	Target loses 125 health per second per summoned shellfish, capping at 5 shellfish, or 625 damage per second.	Clamfest
	Shred	Soma Prime	Deals 150 damage per second and can apply on top of each other.	Someone built ten Tri-Tip Daggers...
	Temporal Sadness	Teardrop Cleaver	Target's damage is reduced by 15 and movement speed is cut in half.	You are crying
	Time Distortion	Time Bolt	Target's movement speed is reduced by 15%.	Time is slowed
	Vaporfied	Aestheticus	Target loses 15 health per second and has 10% reduced movement speed.	Vape
	Wither	Rem's Revenge	Reduces enemy's defense by 20.	Withered... Defense reduced by 20

Vanilla Debuff Changes

Icon	Name	From	Effect	Tooltip
	Acid Venom	Lionfish and various weapons and enemies.	Target loses 25 damage per second per attached lionfish and 15 damage per second per attached sulphuric bubble up to 6 attached lionfish and 4 sulphuric bubbles.	Losing life
	Betsy's Curse	Betsy's Wrath	Target's damage reduction is reduced by 34%.	Defense is lowered
	Chaos State	Rod of Discord, Normality Relocator, and Spectral Veil	Rod of Discord, Normality Relocator and Spectral Veil teleports can't be used	Rod of Discord teleports are disabled
	Oiled	Totality Breakers	Increases the effectiveness of flame debuffs within the Calamity Mod by increasing their damage per second by 25.	Taking more damage from being on fire
	Shadowflame	Various enemies and weapons in Revengeance Mode	If inflicted on a player: Target loses 15 health per second and natural health regeneration.	Losing life
	Water Candle	Water Candle	Increases all spawn rates by 48.15% and maximum spawn count by 65%	Increased monster spawn rate

Trivia

• The debuff vulnerability system is inspired by the Status Effects system from Noita.

See also

• Debuffs on the vanilla wiki.
• Buffs