Io
Patch 7.41f15.09.2026-0.37 (0.37)
Talents
- NERFLevel 15 Talent: Spirits Damage decreased from +50% to +40%-20%
Patch 7.41c06.05.2026-0.12 (0.12)
Abilities
Tether
- NERFHP/Mana Transfer decreased from 60/80/100/120% to 55/75/95/115%-8%-6%-5%-4%
Spirits
- QoLNow remembers the radius of the spirits between casts
Patch 7.41a27.03.2026-1.59 (1.59)
Abilities
Equilibrium
- NERFMax Damage Amp and Max Heal Amplification decreased from 5% + 0.5% per level to 4% + 0.4% per level-20%
L1 L2 L3 L4 L5 L6 L7 L8 L9 L10 L11 L12 L13 L14 L15 L20 L25 L30 old 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 12.5 15 17.5 20 new 4.4 4.8 5.2 5.6 6 6.4 6.8 7.2 7.6 8 8.4 8.8 9.2 9.6 10 12 14 16
Talents
- NERFLevel 25 Talent: Attack Tethered Ally's Target Damage decreased from 75% to 50%-33%
Patch 7.4124.03.2026+1.40 (1.40)
Abilities
Wellspring→Equilibrium
- NEWNew innate ability.
Passive
Consumable items and item abilities that restore Health and Mana over time affect Io twice as fast. Total amount of restored Health or Mana remains the same.
Applies to: Healing Salve, Tango, Clarity, Bottle, Urn of Shadows, Spirit Vessel, Pollywog Charm, Mana Draught.
Example: Clarity normally restores 150 mana over 25s; for Io, 150 mana over 12.5s.
Passive – scales with level
Io always has bonus Outgoing Damage Amp that linearly scales with its health, reaching maximum 5% + 0.5% per level at 100% Health.
| L1 | L2 | L3 | L4 | L5 | L6 | L7 | L8 | L9 | L10 | L11 | L12 | L13 | L14 | L15 | L20 | L25 | L30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| value | 5.5 | 6.0 | 6.5 | 7.0 | 7.5 | 8.0 | 8.5 | 9.0 | 9.5 | 10.0 | 10.5 | 11.0 | 11.5 | 12.0 | 12.5 | 15.0 | 17.5 | 20.0 |
At the same time, Io has Health Restoration and Healing Amplifications that also linearly scale with its health, reaching the same maximum at 0% Health.
Max damage amp
5%
Max amp per level
0.5%
Health for max amp
100%
Overcharge
- NEWNow also provides 35/60/85/110 Attack Speed and 8/10/12/14% Spell Amplification to Io and any tethered Allies
Talents
- BUFFLevel 10 Talent: Strength increased from +7 to +8+14%
- BUFFLevel 25 Talent: Relocate Cast Delay Reduction increased from 1.5s to 2s+33%
Patch 7.4016.12.2025+0.24 (4.97)
GENERAL
- BUFFBase Strength increased from 17 to 19+12%
- NERFBase Intelligence decreased from 23 to 21?Damage at level 1 unchanged (45–51)-9%
Abilities
Spirits
- BUFFMana Cost decreased from 100/110/120/130 to 90/100/110/120-10%-9%-8%-8%
- BUFFCooldown decreased from 22/21/20/19s to 15s-32%-29%-25%-21%
- NERFDuration decreased from 19s to 15s-21%
Talents
- SWAPLevel 10 Talent: +12 Attack Damage to Tethered Units replaced with +7 Strength
- SWAPLevel 15 Talent: +60 Spirits Hero Damage replaced with +50% Spirits Damage
- SWAPLevel 25 Talent: Unslowable during Overcharge replaced with -1.5s Relocate Cast Delay
Patch 7.39d05.08.2025+0.21 (0.21)
Abilities
Spirits
- BUFFCooldown decreased from 26/24/22/20s to 22/21/20/19s-15%-12%-9%-5%
Patch 7.3922.05.2025+3.67 (3.67)
Abilities
Sight Seer→Wellspring
- NEWNew innate ability.
Passive
Io's team takes 1s less to channel Watchers. When a Watcher is under their control, its vision radius is increased by 300.
Channel time reduction
1s
Vision radius bonus
+300
Passive
Io regenerates from consumables 2x faster.
Applies to Healing Salve, Tango, Clarity, Bottle, Urn of Shadows, Spirit Vessel, Pollywog Charm, and Mana Draught. Total amount restored remains the same.
Consumable regen speed
2x
Spirits
- BUFFAghanim's Scepter Movement Slow increased from 15% to 25%+67%
Relocate
- BUFFCooldown decreased from 100/90/80s to 90/80/70s-10%-11%-12%
Patch 7.3819.02.2025+1.72 (7.65)
GENERAL
- BUFFStarting damage increased from 41–47 to 45–51+9%
- NERFDamage gain per level decreased from 4.2 to 2.8?Universal heroes: 0.7 → 0.45 damage per attributeBase damage 4–10 → 21–27 makes up for itDamage at level 30: 192–198 → 146–152 (-24%), with all 7 Attribute Bonus levels, as Valve counts it-33%
- BUFFBase Damage increased by 7?Now it's 21. Before this patch it was changed in 7.33c (3 years 6 months ago)+175%
- BUFFDamage at level 1 increased by 4 (from 41-47 to 45-51)+9%
- BUFFStrength gain increased from 2.7 to 3.0+11%
- NERFDamage gain per level decreased from +4.2 to +2.8-33%
- NERFDamage at level 30 decreased by 46 (from 192-198 to 146-152)-24%
Abilities
Tether
- NEWAghanim's Shard: Deals 120 damage per second to enemies touching it. 50% of the damage dealt heals Io. This is considered a pseudo-lifesteal?It's amplified by spell lifesteal and healing amplification but does not have a creep penalty
- BUFFEnemy Move/Attack Slow increased from 10/20/30/40% to 15/30/45/60%+50%
- DELNo longer deals 15/25/35/45 Damage per second to enemies by default
- QoLUpon casting Tether, Io now has a buff that shows Tether's remaining cooldown. This buff is only visible to Io and Io's allies
- NEWAdded Aghanim's Shard.
Overcharge: Grants Overcharge Slow Resistance (30%). Io also gains Spell Lifesteal (10%) and can now share Spell Lifesteal with its tethered target.Slow resistance
30%
Spell lifesteal
10%
Tether: Tether damages enemies touching it. Io is healed for 50% of the damage done. Damage per second
120
Heal from damage
50%
Overcharge
- DELRemoved Aghanim's Shard.
Talents
- SWAPLevel 10 Talent: +15% Tether Enemy Slow replaced with +1.5s Overcharge Duration
- SWAPLevel 25 Talent: +400 Health to Tethered Units replaced with Unslowable during Overcharge