Debuffs

Debuffs are status effects that affect the player or target negatively. This page lists all debuffs added by the Calamity Mod, new mechanics involving 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, debuffs, and equipment 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 1.5x more effective again on that NPC. This means they will be 3x 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.

Item	Debuff Type	Boost
Cryo Stone	Cold	+50%
Snow armor	Cold	+25%
Evergreen Gin	Water Sickness	+25%
Toxic Heart	Sickness	+50%
The Transformer	Electricity	+50%
Cinnamon Roll	Heat	+50%
Fireball	Heat	+25%
Flame Waker Boots	Heat	+25%
Hellfire Treads	Heat	+50%

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 1.25x instead of 1.5x (bringing the total to 1.875x effectiveness from 3x).
• The Slime God shares this logic, but only for heat debuffs.

Debuffs by Category

Cold debuffs

• Frostbite
• Frostburn
• Glacial State
• Nightwither

Water debuffs

• Crush Depth
• Eutrophication
• Riptide

Sickness debuffs

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

Electricity debuffs

• Electrified
• Galvanic Corrosion

Heat debuffs

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

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 slowing effects from these debuffs for 30 seconds.

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

Debuff		From	Effect	Tooltip
	Armor Crunch	Golem, Ravager, Earth Elemental, The Leviathan, several Skeleton-type Dungeon enemies, and various weapons.	-15 defense and -50% damage reduction (to player) -15% damage reduction (to enemy)	Your armor is shredded
	Astral Infection	Astrum Aureus, Astrum Deus, enemies in the Astral Infection biome, Astral Infection-themed items, Nucleogenesis, and The Amalgam.	No health regeneration -12 health per second and -10% damage (to player) -37.5 health per second and -5% contact damage (to enemy)	Your flesh is melting off
	Boss Effects	While any boss is alive	-80% spawn rate -99.9% maximum spawn count +400% Nurse healing cost Target Dummy and Super Dummy hitboxes are disabled	The nearby boss is: Greatly reducing enemy spawn rates Increasing Nurse healing cost by 400% Disabling Target and Super Dummy hitboxes
	Brain Rot	Eater of Worlds, The Hive Mind, Corruptor, and weapons dropped from The Hive Mind.	No health regeneration -4 health per second (to player) -20 health per second (to enemy)	Your neurons are popping like corn kernels
	Brimstone Flames	Brimstone Elemental, Calamitas Clone and her brothers, Exo Mechs, The Torch God, enemies in the Brimstone Crag, Pot of Pain, and various weapons.	No health regeneration -15 health per second (to player) -30 health per second (to enemy)	Incinerating both body and mind
	Burning Blood	Eye of Cthulhu and its minions, The Perforators, enemies from the Blood Moon, Rem's Revenge, Respiteblock, and several Blood themed weapons.	No health regeneration -4 health per second (to player) -20 health per second (to enemy)	Your blood is on fire
	Clamity	Giant Clam	Increased spawn rate of Clams 0% spawn rate of everything else	The clams have been angered!
	Crush Depth	The Abyss and some of its enemies, Briny Baron, Mad Alchemist's Cocktail Glove, The Old Reaper, and Abyss-themed items.	No health regeneration -9 health per second (to player) -50 health per second (to enemy)	Crushed by aquatic pressure
	Dragonfire	Yharon, Dragon of Rebirth, The Torch God, Pot of Pain, and items dropped from Yharon.	No life regeneration and -30 health per second (to player) -480 health per second (to enemy)	Engulfed by roaring flames
	Extreme Gravity	Astrum Deus and The Devourer of Gods	-25% flight time Infinite flight is disabled	25% decreased wing time 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 and various weapons.	Target cannot move at all.	Cannot move
	God Slayer Inferno	Signus, Envoy of the Devourer, The Devourer of Gods and his minions, The Torch God, Pot of Pain, Prismatic armor, and The Devourer of Gods-themed items.	No health regeneration -25 health per second (to player) -125 health per second (to enemy)	Your flesh is burning off
	Holy Flames	Empress of Light, Lunatic Cultist, Primordial Wyrm, Profaned Guardians, Providence, the Profaned Goddess, The Torch God, profaned enemies, Pot of Pain, and various weapons.	No health regeneration -20 health per second (to player) -100 health per second (to enemy)	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	-33% flight time Infinite flight is disabled	33% decreased wing time Infinite flight is disabled
	Irradiated	Aquatic Scourge, The Old Duke, Acid Rain enemies, Mythril Knife, Nucleogenesis, The Amalgam, and Acid Rain-themed weapons.	-10 defense -10% damage reduction -2 health per second (to player) -10 health per second and increased effectiveness of sickness debuffs (to enemy)	Your skin is burning off
	Miracle Blight	XF-09 Ares, XM-05 Thanatos, Iridescent Excalibur, some Exo Mechs drops, and weapons made with Miracle Matter.	No health regeneration -40 health per second (to player) -1250 health per second (to enemy)	Exotic resonance shreds your corporeal form
	Nightwither	Empress of Light, Moon Lord, Providence, the Profaned Goddess, Polterghast, Umbraphile armor, Polterghast drops, and various weapons.	No health regeneration -20 health per second (to player) -100 health per second (to enemy)	Incinerated by lunar rays
	NO U	THE LORDE	Armor and accessories are disabled All buffs are removed Maximum health cannot be over 600	Equips disabled
	Plague	The Plaguebringer Goliath, Plague enemies, Norfleet, The Amalgam, and Plague-themed items.	No health regeneration -15 health per second and -10% damage (to player) -50 health per second and -5% contact damage (to enemy)	Rotting from the inside
	Riptide	Some enemies from the Abyss, Abyssal Amulet, Depth Crusher, and Leviathan Ambergris.	No health regeneration -3 health per second (to player) -15 health per second (to enemy)	Lashed at by powerful waters
	Sulphuric Poisoning	Radiators post-Polterghast, water in the Sulphurous Sea, The Amalgam, and Old Duke drops.	No health regeneration -3 health per second (to player) -120 health per second (to enemy)	The acidic water burns away your flesh
	Vulnerability Hex	Calamitas Clone, Supreme Witch, Calamitas and her minions, The Torch God, Calamity, Cinders of Lament, Pot of Pain, and weapons enchanted with Aflame.	No health regeneration -17.5 health per second, -20 defense, -10% damage reduction, and -25% flight time (to player) -1332 health per second and maximum velocity is set to 5(to enemy)	Your mental fortitude is fading
	Warped	The Devourer of Gods	1.01x vertical velocity every frame	Movement is being warped
	Weak Petrification	Ravager	-50% flight time Double jumps are disabled	Your vertical movement is weakened
	Whispering Death	Polterghast, Signus, Envoy of the Devourer, The Devourer of Gods, Phantom Spirit, and several weapons.	No health regeneration -20% damage (to player) -10% contact damage (to enemy)	Death approaches; attack power and life regen reduced

From Alcohols

Debuff		Effects		Duration
		Positive	Negative
	Alcohol Poisoning	n/a	-1.5 HP/s for each drink active	While 3 or more drinks are active (Everclear counts as 2) Cirrus' Dress will increase this limit by 2
	Bloody Mary	During a Blood Moon, +10% damage and movement speed	-2 HP/s -4% defense	8 minutes
	Caribbean Rum	+1 HP/s +10% movement speed +20% flight time	-10% defense Warped effect, making you floaty	8 minutes
	Cinnamon Roll	+5 mana/s and less delay before mana begins regenerating +25% player-inflicted heat debuff DoT	-10% defense	8 minutes
	Everclear	+25% damage	-5 HP/s -30% defense	1 minute
	Evergreen Gin	+25% player-inflicted water and sickness debuff DoT	-0.5 HP/s	8 minutes
	Fab	+8% damage When struck for 1 damage, +5 immunity frames. When struck for more than 1 damage, +10 immunity frames	-10% defense	15 minutes
	Fireball	+25% player-inflicted heat debuff DoT	-0.5 HP/s	8 minutes
	Grape Beer	Restores 100 health and mana	-3% defense Potion Sickness for 1 minute and Mana Sickness for 5 seconds	15 seconds
	Margarita	Restores 200 health and mana Halves the duration of most debuffs	-6% defense -0.5 HP/s Potion Sickness for 1 minute and Mana Sickness for 5 seconds	3 minutes
	Moonshine	+10 defense +3% damage reduction	-0.5 HP/s	8 minutes
	Moscow Mule	+9% damage +50% knockback +3% critical strike chance	-2 HP/s	8 minutes
	Old Fashioned	+50% armor set bonus and accessory damage	-25% damage	6 minutes
	Red Wine	Restores 200 health	-0.5 HP/s	15 seconds
	Rum	+1 HP/s +10% movement speed	-5% defense	8 minutes
	Screwdriver	Multiplies piercing projectile damage by 1.05	-0.5 HP/s	8 minutes
	Star Beam Rye	+50 maximum mana +8% magic damage +10% reduced mana costs	-6% defense -1 HP/s	8 minutes
	Tequila	During daytime, +5 defense, +4% critical strike chance, and +10% knockback	-0.5 HP/s	8 minutes
	Tequila Sunrise	During daytime, +10 defense, +8% critical strike chance, and +20% knockback	-1 HP/s	8 minutes
	Vodka	+6% damage +2% critical strike chance	-0.5 HP/s -5% defense	8 minutes
	Whiskey	+4% damage +2% critical strike chance +20% knockback	-5% defense	8 minutes
	White Wine	Restores 300 mana +8% magic damage	-6% defense -0.5 HP/s	5 minutes

From Items and the Environment

Icon	Name	From	Effect	Tooltip
	Enraged	Demonshade armor	The player deals 125% more damage but takes 25% more damage.	Total damage multiplied by 2.25x, but you take 1.25x damage
	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.	Using the Supreme Witch's power causes you to suffer, but makes your weapons strong
	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	The target will lose 0.2% of its max health per second, or take 2000 damage per second; whichever is greater.	You shall not be forgiven for your sins
	Clammed	Snap Clam	Target loses 30 health per second per attached clam, capping at 2 clams.	Clapped by Snap Clams
	Crumbling	Broken Biome Blade, Craw Carapace, Flask of Crumbling, and Rotten Dogtooth	If inflicted on an enemy: Target's damage reduction is multiplied by 0.92. If inflicted on a player: Target loses 10 defense and their damage reduction is multiplied by 0.7.	Your armor is damaged
	Elemental Mix	Elemental weapons, Elemental Gauntlet, and Ultima.	If inflicted on an enemy: Target loses 200 health per second. If inflicted on the player: Target loses 25 health per second.	A beautiful elemental symphony is flaying you alive
	Eutrophication	Big coral from Coral Cannon, Eutrophic Scimitar, Clam Crusher, Prismalline, and Abyssal Mirror shards	Reduces the target's movement speed by 5% per frame. If the target is vulnerable to water debuffs, it is slowed down by 40% per frame. If it is resistant to water debuffs, then it is slowed down by only 1% per frame	Excessive nutrients restrict your movement
	Galvanic Corrosion	Hydra, Shock Grenade and Tesla Potion	Reduces the target's movement speed by 5% per frame. If the target is vulnerable to electricity debuffs, it is slowed down by 40% per frame. If it is resistant to electricity debuffs, then it is slowed down by only 1% per frame.	Your limbs have begun to corrode
	Kami Flu	Yanmei's Knife	Target's damage reduction is reduced by 20%, they take 125 damage per second, and restricts the targets maximum horizontal and vertical velocity to 16.	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 Crystal Whip Debuff	Profaned Soul Crystal	Target takes 20% (40% if the player is empowered) more damage.	Your flesh has been torn asunder by a profaned crystalline whip!
	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
	Sage Poison	Viral Sprout	Deals a constant damage over time, increasing in damage the more Sage Spirits are present.	Poisoned
	Shellfish Claps	Mollusk armor and Shellfish Staff	Target loses 31 health per second per summoned shellfish, capping at 5 shellfish, or 155 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 contact damage is reduced by 50%, and movement speed is reduced by 50% per frame.	You are crying
	Time Distortion	Time Bolt and Chronomancer's Scythe	Target's movement speed is reduced by 15% per frame.	Time is slowed
	Vaporfied	Aestheticus	If inflicted on an enemy: Target loses 15 health per second and reduces their movement speed by 5% per frame. If inflicted on a player: Target loses 4 health per second and reduces their movement speed by 2% per frame.	Vape
	Wither	Rem's Revenge	Reduces enemy's defense by 20.	Withered... Defense decreased by 20

Vanilla Debuff Changes

Debuff		From	Vanilla	Calamity
	Acid Venom	Various weapons and enemies.	No health regeneration -15 health per second (to player) -30 health per second (to enemy)	No health regeneration -15 health per second (to player) -30 health per second and -5% contact damage (to enemy) Enemies affected by the debuff through the Leviathan Teeth, Lionfish, or Jaws of Oblivion take 15 damage per second for each projectile stuck onto the target, up to a maximum of 6 projectiles
	Betsy's Curse	Betsy's Wrath	-40 defense	-40 defense and DR multiplied by 0.66
	Chaos State	Rod of Discord, Normality Relocator, and Spectral Veil	-14% of maximum health upon use of Rod of Discord	Rod of Discord, Normality Relocator and Spectral Veil teleports cannot be used While in the Abyss, spawns the Primordial Wyrm
	Ichor	Various weapons, Flask of Ichor and The Perforator Hive	-15 defense	-10 defense
	Oiled	Totality Breakers and Draconic Destruction	-25 health per second while afflicted by a flame debuff	+25 damage per second on flame debuffs
	Shadowflame	Various weapons, various enemies in Revengeance Mode	No health regeneration -15 health per second	No health regeneration -15 health per second (to player) -30 health per second (to enemy)
	Slow	Various enemies and bosses	-50% horizontal movement speed	-5% movement speed per frame
	Tipsy	Ale, Sake	-4 defense +2% melee critical strike chance +10% melee speed +10% melee damage +5 Fishing Power	-5% defense +10% melee damage +5 Fishing Power Is considered an alcohol and counts towards Alcohol Poisoning
	Water Candle	Water Candle	+33% spawn rate +50% maximum spawn count	+48.15% spawn rate +60% maximum spawn count
	Webbed	Web Ball, Black Recluse, Jungle Creeper	0x movement speed Unable to use most items	-15% movement speed per frame

Trivia

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

See also

• Debuffs on the vanilla wiki.
• Buffs