DOTALEDGERPatch7.41e
Io
UniversalRangedSupportEscapeNuker

Io

Io is everywhere, and in all things. Denounced by enemies as the great unmaker, worshiped by scholars as the twinkling of a divine eye, this strange Wisp of life-force occupies all planes at once, the merest fraction of its being crossing into physical existence at any one moment. Like the great twin riders Dark and Light, and yet another ancient traveler whose true history is lost to the ages, Io the Wisp is a Fundamental of the universe, a force older than time, a wanderer from realms far beyond mortal understanding. Io is nothing less than the sum of all attractive and repulsive forces within the material field, a sentient manifestation of the charge that bind existence together. It is only in the controlled warping of these electrical waylines that Io's presence can be experienced on the physical plane. A benevolent, cooperative force, Io bonds its strange magnetism to others so tha…

Hero lore

Io is everywhere, and in all things. Denounced by enemies as the great unmaker, worshiped by scholars as the twinkling of a divine eye, this strange Wisp of life-force occupies all planes at once, the merest fraction of its being crossing into physical existence at any one moment. Like the great twin riders Dark and Light, and yet another ancient traveler whose true history is lost to the ages, Io the Wisp is a Fundamental of the universe, a force older than time, a wanderer from realms far beyond mortal understanding. Io is nothing less than the sum of all attractive and repulsive forces within the material field, a sentient manifestation of the charge that bind existence together. It is only in the controlled warping of these electrical waylines that Io's presence can be experienced on the physical plane. A benevolent, cooperative force, Io bonds its strange magnetism to others so tha…

STR19+3
AGI14+1.6
INT21+1.7
320
move speed
500
attack range
21–27
base damage
1800 / 800
day / night vision

Compact stat and ability fields shown here were checked against patch 7.41e where this model represents the changed field. Talents and full mechanics remain in the official notes.

Io abilities

Tether icon
Tether

Tethers Io to an allied unit, granting bonus movement speed to both. When Io restores health or mana, the tethered unit gains a portion of that amount. The tether breaks when the allied unit moves too far away, or Io cancels the tether. Tether slows enemies t…

CD12MP40BKB ✓
Unit Target
Spirits icon
SpiritsMagical

Summon five particle spirits that dance in a circle around Io. If a particle collides with an enemy hero, it explodes, damaging all enemy units in an area around it. Creeps take minor damage from touching a particle spirit, but do not cause them to explode. W…

CD15MP90/100/110/120
No Target, Instant Cast
Overcharge icon
Overcharge

Io gains attack speed, spell amplification, and health regeneration based on max health. If Io is Tethered to an ally, that unit also gains any bonuses granted by Overcharge.

CD25/22/19/16MP40/60/80/100
No Target, Instant Cast
Spirits In icon
Spirits In

Sends the spirits closer to you. Can be toggled on and off.

Instant Cast, Hidden
Spirits Out icon
Spirits Out

Sends the spirits farther away from you. Can be toggled on and off.

Instant Cast, Hidden
Relocate icon
Relocate

Teleports Io and a tethered ally to any location. After the spell expires, Io and the tethered ally will return to their original location. Double-click to teleport to your team's base fountain.

CD90/80/70MP175
Point Target
Break Tether icon
Break Tether

Break the link to the tethered unit.

CD1
Hidden, No Target

OpenDota professional-match aggregate as of Jul 21, 2026, 9:50 PM UTC. Popularity rows are independent phase totals, not a coherent build, sequence, or win-rate advice.

The professional-match item popularity snapshot is delayed; the latest saved aggregate is shown.

Starting

6 items
  1. 1Iron BranchIron Branch93 selections · 16.5%
  2. 2TangoTango91 selections · 16.1%
  3. 3Ring of RegenRing of Regen59 selections · 10.5%
  4. 4Blood GrenadeBlood Grenade54 selections · 9.6%
  5. 5Observer and Sentry WardsObserver and Sentry Wards46 selections · 8.2%
  6. 6HeaddressHeaddress44 selections · 7.8%

Early

6 items
  1. 1Soul RingSoul Ring39 selections · 33.9%
  2. 2ChainmailChainmail32 selections · 27.8%
  3. 3BracerBracer8 selections · 7%
  4. 4Null TalismanNull Talisman7 selections · 6.1%
  5. 5Ogre AxeOgre Axe6 selections · 5.2%
  6. 6BottleBottle6 selections · 5.2%

Mid

6 items
  1. 1MekansmMekansm66 selections · 23.9%
  2. 2Holy LocketHoly Locket54 selections · 19.6%
  3. 3Ogre AxeOgre Axe21 selections · 7.6%
  4. 4Point BoosterPoint Booster15 selections · 5.4%
  5. 5Aghanim's ScepterAghanim's Scepter14 selections · 5.1%
  6. 6Blade of AlacrityBlade of Alacrity13 selections · 4.7%

Late

6 items
  1. 1ReaverReaver14 selections · 12%
  2. 2Heart of TarrasqueHeart of Tarrasque14 selections · 12%
  3. 3Glimmer CapeGlimmer Cape13 selections · 11.1%
  4. 4Black King BarBlack King Bar12 selections · 10.3%
  5. 5Vladmir's OfferingVladmir's Offering9 selections · 7.7%
  6. 6Holy LocketHoly Locket9 selections · 7.7%

More heroes to explore

All heroes →

Io — frequently asked

What are Io's abilities in Dota 2?

Io's abilities are Tether, Spirits, Overcharge, Spirits In, Spirits Out, Relocate, Break Tether. It is a Universal ranged hero played as Support, Escape, Nuker.

What is Io's primary attribute?

Io is a Universal hero, starting with 19 strength (+3/lvl), 14 agility (+1.6/lvl) and 21 intelligence (+1.7/lvl), and a base move speed of 320.

What do the popular Io item phases mean?

The saved OpenDota aggregate is dated 2026-07-22. The phase lists summarize professional-match item popularity; they are not one coherent build, a recommended sequence, or win-rate advice.