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Caustic ground

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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.


  • Caustic ArrowCaustic ArrowAttack, Projectile, AoE, Duration, Chaos, Bow
    Radius: 20
    Mana Cost: (6-10)
    Cast Time: 1.00 sec
    Effectiveness of Added Damage: (55%-64%)
    Projectile Speed: 3260
    Fires 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.Per 1% Quality:
    0.5% increased Area of Effect
    Deals (55-64.4)% of Base Attack Damage
    Base duration is 2 seconds
    Deals (8.8-1927.1) Base Chaos Damage per second
    60% of Physical Damage Converted to Chaos Damage
    Modifiers to Projectile Damage apply to this Skill's Damage Over Time effect
    +(0-6) to radius
    Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.
    Caustic Arrow skill icon.png
  • Strongboxes with the 'Contaminated' prefix
  • The caustic bomb thrown by Undying Alchemists
  • Certain zombies, which release caustic ground when destroyed

Version history

Version Changes
  • 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.
  • Poison Arrow and Ground Fire should now cause fewer graphical performance issues.