Caustic ground

You are taking Chaos Damage from standing in Caustic Ground.

You are taking Chaos Damage from standing in Caustic Ground.

Caustic Ground is a detrimental ground effect that deals chaos damage over time. The amount of damage per second inflicted by caustic ground depends on its source.

Sources

Skill gems

Gem
Alchemist's MarkAlchemist's MarkSpell, Curse, Mark, AoE, Duration, Fire, Chaos Level: (1-20) Cost: (16-33) Mana Cast Time: 0.50 secRequires Level 24Curses a single enemy, granting flask charges when you hit them and creating Burning Ground under them if your hit Ignites them, and Caustic Ground if it Poisons them. Damage modifiers do not apply to these ground effects. You can only have one Mark at a time.Base duration is 4.00 seconds Burning Ground deals (20-26)% of the Fire Damage per Second of strongest Ignite on Enemy Caustic Ground deals (60-79)% of the Chaos Damage per Second of strongest Poison on Enemy Can create each Ground effect no more than once each second Gain 1 Flask Charge when you Hit a Cursed Enemy, no more than once every 3 seconds Additional Effects From 1-20% Quality: (0.5-10)% increased Effect of MarkPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.	24	N/A	N/A
Caustic ArrowCaustic ArrowAttack, Projectile, AoE, Duration, Chaos, Bow Level: (1-20) Cost: (6-10) Mana Attack Damage: (55-64)% of base Effectiveness of Added Damage: (55-64)% Projectile Speed: 3260 AoE Radius: 20Fires an arrow which deals chaos damage in an area on impact, and spreads caustic ground. Enemies standing on the caustic ground take chaos damage over time.Deals (8.8-1927.1) Base Chaos Damage per second Base duration is 2.00 seconds Modifiers to Projectile Damage apply to this Skill's Damage Over Time effect +(0-0.6) metres to radius 60% of Physical Damage Converted to Chaos Damage Additional Effects From 1-20% Quality: +(0.01-0.2) metres to radiusPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.	1	N/A	N/A
Vaal Caustic ArrowVaal Caustic ArrowAttack, Projectile, AoE, Duration, Chaos, Vaal, Bow Level: (1-20) Souls Per Use: 20 Can Store 2 Use(s) Soul Gain Prevention: 8 sec Attack Speed: 70% of base Attack Damage: (280-400)% of base Effectiveness of Added Damage: (280-400)%Fires a slow-moving serpentine arrow which deals chaos damage while piercing enemies, and leaves a trail of caustic ground. Enemies standing on the caustic ground take chaos damage over time.Projectiles Pierce all Targets Deals (21.1-4622.5) Base Chaos Damage per second Base duration is 6.00 seconds Modifiers to Projectile Damage apply to this Skill's Damage Over Time effect Modifiers to Skill Effect Duration also apply to this Skill's Soul Gain Prevention 60% of Physical Damage Converted to Chaos Damage Can't be Evaded Additional Effects From 1-20% Quality: +(0.01-0.2) metres to radiusCorruptedPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.	1	N/A	N/A

Unique items

Item	Base Item		Stats
SiegebreakerSiegebreaker Heavy BeltRequires Level 44+(25-35) to Strength(6-10)% increased maximum Energy Shield (6-10)% increased maximum Life +(17-23)% to Chaos Resistance Minions have 5% chance to Taunt on Hit with Attacks Your Minions spread Caustic Ground on Death, dealing 20% of their maximum Life as Chaos Damage per secondPoison the land and they'll have nothing to defend.	Heavy Belt	44	+(25-35) to Strength(6-10)% increased maximum Energy Shield (6-10)% increased maximum Life +(17-23)% to Chaos Resistance Minions have 5% chance to Taunt on Hit with Attacks Your Minions spread Caustic Ground on Death, dealing 20% of their maximum Life as Chaos Damage per second

Other

Strongboxes with the ContaminatedContaminated
Prefix
Spreads Caustic Ground
Chest plays warning sound (Hidden) prefix
The caustic bomb thrown by Undying Alchemists
Certain zombies, which release caustic ground on death
Monsters with the Toxic archnemesis mod, whose on-death orbs create caustic ground when they drop
Infested Ursa and Vivid Weta release caustic ground on death
Skill used by Ryslatha, the Puppet Mistress
The Temple of Atzoatl with "poison themed" rooms such as Toxic Grove. Clusters of plants are randomly spread throughout the whole area, which release a Caustic Ground once stepped on. The amount of plants is determined by the respective room level (with higher room levels adding more plants).
Heist monsters (in Prohibited Library tileset for example), lay Caustic ground with yellow status icon

Trivia

The file name of the debuff icon of Caustic Ground, is "CausticCloud.dds". (heist version is known as "HeistCausticCloud.dds"), so that "Caustic Cloud" is a legit other name of this ground effect

Version history

Version	Changes
3.10.0	Improved the appearance of shocked, burning, caustic and chilled ground.
3.9.2	Adjusted a number of Metamorph skills, including the Reliquarian's Firestorm, the Shavronne & Brutus Hover Slam, Tentacle Miscreation projectile skills, the tracking Mortar skills (including those used by Oriath zombies and Kitava's Heralds), Burning and Caustic Ground-creating skills and several others. In general, these will now either deal less damage or be easier to avoid.
3.8.0d	The SiegebreakerSiegebreaker Heavy BeltRequires Level 44+(25-35) to Strength(6-10)% increased maximum Energy Shield (6-10)% increased maximum Life +(17-23)% to Chaos Resistance Minions have 5% chance to Taunt on Hit with Attacks Your Minions spread Caustic Ground on Death, dealing 20% of their maximum Life as Chaos Damage per secondPoison the land and they'll have nothing to defend. unique belt now correctly causes your Raise SpectreRaise SpectreSpell, Minion Level: (1-20) Cost: (15-28) Mana Cast Time: 0.85 secRequires Level 28Raises a spectral version of a defeated foe as a minion to fight for you in battle.Maximum (1-2) Raised Spectres Minions have +30% to all Elemental Resistances 55% more Minion Movement Speed Minion Movement Speed is Capped Minions have (105-776) additional Accuracy Rating Raised Spectres are Level (28-70) Additional Effects From 1-20% Quality: Minions have +(1-20)% to all Elemental ResistancesPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket. to spread Caustic Ground on Death.
2.4.2	Caustic Clouds created by monsters now more clearly indicates what area they affect.
2.1.0	We've made performance improvements to ground effects. They now use considerably less bandwidth and server resources. Disconnections or lockstep stuttering near ground effects should occur far less often.
0.10.7b	Poison ArrowCaustic ArrowAttack, Projectile, AoE, Duration, Chaos, Bow Level: (1-20) Cost: (6-10) Mana Attack Damage: (55-64)% of base Effectiveness of Added Damage: (55-64)% Projectile Speed: 3260 AoE Radius: 20Fires an arrow which deals chaos damage in an area on impact, and spreads caustic ground. Enemies standing on the caustic ground take chaos damage over time.Deals (8.8-1927.1) Base Chaos Damage per second Base duration is 2.00 seconds Modifiers to Projectile Damage apply to this Skill's Damage Over Time effect +(0-0.6) metres to radius 60% of Physical Damage Converted to Chaos Damage Additional Effects From 1-20% Quality: +(0.01-0.2) metres to radiusPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket. and Ground Fire should now cause fewer graphical performance issues.
Unknown	Introduced to the game