Dota 2

Orb of Corrosion

Shop item, 1,050 gold. Built from Band of Elvenskin, Orb of Frost and Orb of Blight.

Orb of Corrosion
1,050g

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Full history

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Since you last played

Reworked in 7.38

Reworked in 7.38 Feb 2025

It works differently from how you remember. What it does now is further down.

  • ◆
    Provides +8 Agility
  • ◆
    Passive: Corrosion. On attack, slows the enemy by 16% if the target is ranged and by 6% if the target is melee. Also reduces the target's incoming healing by 16% and their armor by 3. Duration: 3s
  • ◆
    Armor reduction does not stack with its components, Desolator, or Stygian Desolator
  • ◆
    Requires Orb of Frost (250), Orb of Blight (300) and Band of Elvenskin (450). Total cost: 1000

3 buffs and 2 nerfs in total: roughly even.

Cost and recipe

  • ▼
    Total Cost increased from 1000 to 1050

Biggest changes

  • ▲
    Corrosion armor reduction decreased from 3 to 2
  • ▲
    Corrosion Melee Movement Slow increased from 6% to 8%
  • ▼
    Agility bonus decreased from +8 to +7
  • ▲
    Corrosion health restoration reduction increased from 16% to 18%
  • ◆
    Corrosion instead of reducing Healing, Health Regen, Lifesteal, and Spell Lifesteal by 16%, now reduces Health Restoration by 16%
  • ▼
    Corrosion's slow and health restoration reduction no longer stack with Orb of Frost and Eye of Skadi

Most recent change patch 7.41e, Jul 2026

  • ▲
    Corrosion health restoration reduction increased from 16% to 18%
What it does now
  • + 7 Agility
  • Corrosion PassiveYour attacks reduce the target's armor by -2, slows their movement by -16% (-8% against melee targets), and reduces Health Restoration by 18%. Lasts for 3 seconds.

Built from Band of Elvenskin, Orb of Frost, Orb of Blight.

Heroes that buy Orb of Corrosion

Most bought first, from item purchases in recent professional matches (OpenDota). Public games can differ.

Every Orb of Corrosion change, patch by patch

All 18 changes Valve listed for Orb of Corrosion since patch 7.28b, newest first. Reworked in 7.38. Last changed in 7.41e (Jul 2026).

Patch 7.41e

  • ▲
    Corrosion health restoration reduction increased from 16% to 18%

Patch 7.41

  • ◆
    Now also modifies incoming healing
  • ◆
    As a result of Health Restoration changes

Patch 7.39

  • ▼
    Total Cost increased from 1000 to 1050
  • ◆
    Corrosion instead of reducing Healing, Health Regen, Lifesteal, and Spell Lifesteal by 16%, now reduces Health Restoration by 16%
  • ▼
    Corrosion's slow and health restoration reduction no longer stack with Orb of Frost and Eye of Skadi

Patch 7.38c

  • ▲
    Corrosion armor reduction decreased from 3 to 2

Patch 7.38b

  • ▼
    Agility bonus decreased from +8 to +7
  • ▲
    Corrosion Melee Movement Slow increased from 6% to 8%

Patch 7.38 Rework

  • ◆
    Requires Orb of Frost (250), Orb of Blight (300) and Band of Elvenskin (450). Total cost: 1000
  • ◆
    Provides +8 Agility
  • ◆
    Passive: Corrosion. On attack, slows the enemy by 16% if the target is ranged and by 6% if the target is melee. Also reduces the target's incoming healing by 16% and their armor by 3. Duration: 3s
  • ◆
    Armor reduction does not stack with its components, Desolator, or Stygian Desolator

Patch 7.35c

  • ▲
    Total cost decreased from 900 to 875

Patch 7.35

  • ▲
    Recipe changed. Now requires Orb of Venom (275), Ring of Protection (175) and Gloves of Haste (450). Total cost decreased from 925 to 900
  • ◆
    Provides +3 Armor and +25 Attack Speed
  • ◆
    Passive: Corrosion. Attacks on enemies apply a debuff that deals 5 damage per second, slows enemies by 13/4% if the equipped hero is melee/ranged and decreases health they gain from healing, regeneration, lifesteal and spell lifesteal by 20%. Duration: 3s. Damage over time affects buildings

Patch 7.28b

  • ◆
    Now has a 100 gold recipe