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Dota 2

Io: change history

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19 changes across 5 patches (Dec 15, 2025 to Sep 15, 2026), newest first.

Buff 4Nerf 4Adjust 9New 1Removed 1
  1. Dota 2: Gameplay Update 7.41f (Sep 15, 2026)Nerf 1Official notes ↗
    Nerf
    Talents · Level 15 Talent Spirits Damage
    Io's level 15 talent Spirits Damage decreases from +50% to +40%.
    +50%→+40%
    Source line
    Level 15 Talent Spirits Damage decreased from +50% to +40%
  2. Dota 2: Gameplay Update 7.41c (May 6, 2026)Nerf 1Adjust 1Official notes ↗
    Nerf
    Tether · HP/Mana Transfer
    HP/Mana Transfer on Io's Tether decreases from 60/80/100/120% to 55/75/95/115%.
    60/80/100/120%→55/75/95/115%
    Source line
    HP/Mana Transfer decreased from 60/80/100/120% to 55/75/95/115%
    Adjust
    Spirits
    Now remembers the radius of the spirits between casts.
    Source line
    Now remembers the radius of the spirits between casts
  3. Dota 2: Gameplay Update 7.41a (Mar 27, 2026)Adjust 2Official notes ↗
    Adjust
    Equilibrium · Max Damage Amp and Max Heal Amplification
    Io's Equilibrium: Max Damage Amp and Max Heal Amplification decreased from 5 + 0.5% per level to 4 + 0.4% per level.
    5 + 0.5% per level→4 + 0.4% per level
    Source line
    Max Damage Amp and Max Heal Amplification decreased from 5 + 0.5% per level to 4 + 0.4% per level
    Adjust
    Talents · Level 25 Talent Attack Tethered Ally's Target Damage
    Io's level 25 talent Attack Tethered Ally's Target Damage decreases from 75% to 50%.
    75%→50%
    Source line
    Level 25 Talent Attack Tethered Ally's Target Damage decreased from 75% to 50%
  4. Dota 2 Patch 7.41Buff 1Adjust 2New 1Removed 1Official notes ↗
    Removed
    Removed Wellspring innate ability.
    Source line
    Removed Wellspring innate ability
    New
    Equilibrium
    New innate ability.
    Source line
    New innate ability
    • Io always has bonus Outgoing Damage Amp which linearly scales with its health, reaching a maximum of 5% + 0.5% per level at 100% Health. At the same time, Io has Health Restoration and Healing Amplifications which also linearly scale with its health, but reach a maximum of 5% + 0.5% per level at zero Health
    Adjust
    Overcharge
    Now also provides 35/60/85/110 Attack Speed and 8/10/12/14% Spell Amplification to Io and any tethered Allies.
    Source line
    Now also provides 35/60/85/110 Attack Speed and 8/10/12/14% Spell Amplification to Io and any tethered Allies
    Buff
    Talents · Level 10 Talent Strength
    Io's level 10 talent Strength increases from +7 to +8.
    +7→+8
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    Level 10 Talent Strength increased from +7 to +8
    Adjust
    Talents · Level 25 Talent Relocate Cast Delay Reduction
    Io's level 25 talent Relocate Cast Delay Reduction increases from 1.5s to 2s.
    1.5s→2s
    Source line
    Level 25 Talent Relocate Cast Delay Reduction increased from 1.5s to 2s
  5. Dota 2 Patch 7.40Buff 3Nerf 2Adjust 4Official notes ↗
    Buff
    Base Strength
    Io's Base Strength increases from 17 to 19.
    17→19
    Source line
    Base Strength increased from 17 to 19
    Nerf
    Base Intelligence
    Io's Base Intelligence decreases from 23 to 21.
    23→21
    Source line
    Base Intelligence decreased from 23 to 21
    Adjust
    Damage at level 1 unchanged (45–51).
    Source line
    Damage at level 1 unchanged (45–51)
    Buff
    Spirits · Mana Cost
    Mana Cost on Io's Spirits decreases from 100/110/120/130 to 90/100/110/120.
    100/110/120/130→90/100/110/120
    Source line
    Mana Cost decreased from 100/110/120/130 to 90/100/110/120
    Buff
    Spirits · Cooldown
    Cooldown on Io's Spirits decreases from 22/21/20/19s to 15s.
    22/21/20/19s→15s
    Source line
    Cooldown decreased from 22/21/20/19s to 15s
    Nerf
    Spirits · Duration
    Duration on Io's Spirits decreases from 19s to 15s.
    19s→15s
    Source line
    Duration decreased from 19s to 15s
    3 more changes in this patch →